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Posted to commits@nuttx.apache.org by gi...@apache.org on 2021/11/24 00:10:57 UTC
[incubator-nuttx-website] branch asf-site updated: Publishing web: dae81ea3c7ae113846bd7d94778d565c9f4d4c43 docs: 36a6f4cd0968399c4b1160f8cb6191e65e2415eb
This is an automated email from the ASF dual-hosted git repository.
github-bot pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-website.git
The following commit(s) were added to refs/heads/asf-site by this push:
new a6968d9 Publishing web: dae81ea3c7ae113846bd7d94778d565c9f4d4c43 docs: 36a6f4cd0968399c4b1160f8cb6191e65e2415eb
a6968d9 is described below
commit a6968d91637d84eb370dab6eb41bed75cab14c02
Author: Abdelatif <ab...@espressif.com>
AuthorDate: Wed Nov 24 00:09:31 2021 +0000
Publishing web: dae81ea3c7ae113846bd7d94778d565c9f4d4c43 docs: 36a6f4cd0968399c4b1160f8cb6191e65e2415eb
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content/docs/latest/introduction/index.html | 2 +
content/docs/latest/introduction/inviolables.html | 2 +
content/docs/latest/introduction/licensing.html | 2 +
content/docs/latest/introduction/resources.html | 2 +
.../latest/introduction/supported_platforms.html | 2 +
content/docs/latest/introduction/trademarks.html | 2 +
.../arm/imxrt/boards/imxrt1020-evk/index.html | 2 +
.../arm/imxrt/boards/imxrt1050-evk/index.html | 2 +
.../arm/imxrt/boards/imxrt1060-evk/index.html | 2 +
.../arm/imxrt/boards/imxrt1064-evk/index.html | 2 +
.../arm/imxrt/boards/teensy-4.x/index.html | 2 +
content/docs/latest/platforms/arm/imxrt/index.html | 2 +
content/docs/latest/platforms/arm/index.html | 2 +
.../arm/nrf52/boards/nrf52832-mdk/index.html | 2 +
.../arm/nrf52/boards/nrf52832-sparkfun/index.html | 2 +
content/docs/latest/platforms/arm/nrf52/index.html | 2 +
content/docs/latest/platforms/index.html | 2 +
.../docs/latest/platforms/risc-v/bl602/index.html | 2 +
.../esp32c3/boards/esp32c3-devkit/index.html | 2 +
.../latest/platforms/risc-v/esp32c3/index.html | 2 +
content/docs/latest/platforms/risc-v/index.html | 2 +
.../platforms/risc-v/mpfs/boards/icicle/index.html | 2 +
.../docs/latest/platforms/risc-v/mpfs/index.html | 2 +
content/docs/latest/platforms/sim/index.html | 2 +
content/docs/latest/platforms/sim/sim/index.html | 2 +
.../xtensa/esp32/boards/esp32-devkitc/index.html | 2 +
.../esp32/boards/esp32-wrover-kit/index.html | 2 +
.../docs/latest/platforms/xtensa/esp32/index.html | 2 +
content/docs/latest/platforms/xtensa/index.html | 2 +
content/docs/latest/quickstart/compiling.html | 2 +
content/docs/latest/quickstart/configuring.html | 2 +
content/docs/latest/quickstart/debugging.html | 2 +
content/docs/latest/quickstart/index.html | 2 +
content/docs/latest/quickstart/install.html | 2 +
content/docs/latest/quickstart/organization.html | 2 +
content/docs/latest/quickstart/running.html | 2 +
content/docs/latest/reference/index.html | 2 +
content/docs/latest/reference/os/addrenv.html | 2 +
content/docs/latest/reference/os/app_vs_os.html | 2 +
content/docs/latest/reference/os/arch.html | 2 +
content/docs/latest/reference/os/board.html | 2 +
content/docs/latest/reference/os/conventions.html | 2 +
content/docs/latest/reference/os/index.html | 2 +
content/docs/latest/reference/os/iob.html | 2 +
content/docs/latest/reference/os/led.html | 2 +
content/docs/latest/reference/os/nuttx.html | 2 +
content/docs/latest/reference/os/paging.html | 2 +
content/docs/latest/reference/os/shm.html | 2 +
content/docs/latest/reference/os/smp.html | 2 +
content/docs/latest/reference/os/time_clock.html | 2 +
content/docs/latest/reference/os/wqueue.html | 2 +
.../latest/reference/user/01_task_control.html | 2 +
.../latest/reference/user/02_task_scheduling.html | 2 +
.../latest/reference/user/03_task_control.html | 2 +
.../latest/reference/user/04_message_queue.html | 2 +
.../reference/user/05_counting_semaphore.html | 2 +
.../latest/reference/user/06_clocks_timers.html | 2 +
content/docs/latest/reference/user/07_signals.html | 2 +
content/docs/latest/reference/user/08_pthread.html | 2 +
.../docs/latest/reference/user/09_env_vars.html | 2 +
.../docs/latest/reference/user/10_filesystem.html | 2 +
content/docs/latest/reference/user/11_network.html | 2 +
.../latest/reference/user/12_shared_memory.html | 2 +
.../docs/latest/reference/user/13_boardctl.html | 2 +
content/docs/latest/reference/user/13_logging.html | 2 +
content/docs/latest/reference/user/index.html | 2 +
content/docs/latest/reference/user/structures.html | 2 +
content/docs/latest/search.html | 2 +
content/docs/latest/substitutions.html | 2 +
content/feed.xml | 4 +-
775 files changed, 54996 insertions(+), 113 deletions(-)
diff --git a/content/docs/10.0.0/index.html b/content/docs/10.0.0/index.html
index f10e546..298361d 100644
--- a/content/docs/10.0.0/index.html
+++ b/content/docs/10.0.0/index.html
@@ -207,7 +207,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 32-bit microcontroller environments, the primary governing standards in NuttX are Posix and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 23 November 21 at 00:06</p>
+<p>Last Updated: 24 November 21 at 00:06</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/10.0.1/applications/index.html b/content/docs/10.0.1/applications/index.html
index 398c34e..ddb4693 100644
--- a/content/docs/10.0.1/applications/index.html
+++ b/content/docs/10.0.1/applications/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/boards/index.html b/content/docs/10.0.1/boards/index.html
index cbb5298..20549fe 100644
--- a/content/docs/10.0.1/boards/index.html
+++ b/content/docs/10.0.1/boards/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/binfmt.html b/content/docs/10.0.1/components/binfmt.html
index 78fd549..573edef 100644
--- a/content/docs/10.0.1/components/binfmt.html
+++ b/content/docs/10.0.1/components/binfmt.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/block/index.html b/content/docs/10.0.1/components/drivers/block/index.html
index c8cba05..817b03f 100644
--- a/content/docs/10.0.1/components/drivers/block/index.html
+++ b/content/docs/10.0.1/components/drivers/block/index.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/analog.html b/content/docs/10.0.1/components/drivers/character/analog.html
index 6023b0c..3dbc53e 100644
--- a/content/docs/10.0.1/components/drivers/character/analog.html
+++ b/content/docs/10.0.1/components/drivers/character/analog.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/can.html b/content/docs/10.0.1/components/drivers/character/can.html
index 247eb0b..da337b3 100644
--- a/content/docs/10.0.1/components/drivers/character/can.html
+++ b/content/docs/10.0.1/components/drivers/character/can.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/index.html b/content/docs/10.0.1/components/drivers/character/index.html
index 19b70ec..bad803a 100644
--- a/content/docs/10.0.1/components/drivers/character/index.html
+++ b/content/docs/10.0.1/components/drivers/character/index.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/keypad.html b/content/docs/10.0.1/components/drivers/character/keypad.html
index e7d8736..6ca5d1d 100644
--- a/content/docs/10.0.1/components/drivers/character/keypad.html
+++ b/content/docs/10.0.1/components/drivers/character/keypad.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/pwm.html b/content/docs/10.0.1/components/drivers/character/pwm.html
index 730efa6..883d60b 100644
--- a/content/docs/10.0.1/components/drivers/character/pwm.html
+++ b/content/docs/10.0.1/components/drivers/character/pwm.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/quadrature.html b/content/docs/10.0.1/components/drivers/character/quadrature.html
index 7ec1d05..6d023f6 100644
--- a/content/docs/10.0.1/components/drivers/character/quadrature.html
+++ b/content/docs/10.0.1/components/drivers/character/quadrature.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/rtc.html b/content/docs/10.0.1/components/drivers/character/rtc.html
index dc0c8f8..9063282 100644
--- a/content/docs/10.0.1/components/drivers/character/rtc.html
+++ b/content/docs/10.0.1/components/drivers/character/rtc.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/serial.html b/content/docs/10.0.1/components/drivers/character/serial.html
index 2f3037d..87adbdc 100644
--- a/content/docs/10.0.1/components/drivers/character/serial.html
+++ b/content/docs/10.0.1/components/drivers/character/serial.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/timer.html b/content/docs/10.0.1/components/drivers/character/timer.html
index d3200d6..58ef0cf 100644
--- a/content/docs/10.0.1/components/drivers/character/timer.html
+++ b/content/docs/10.0.1/components/drivers/character/timer.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/touchscreen.html b/content/docs/10.0.1/components/drivers/character/touchscreen.html
index 3e3ceb5..f3c1d35 100644
--- a/content/docs/10.0.1/components/drivers/character/touchscreen.html
+++ b/content/docs/10.0.1/components/drivers/character/touchscreen.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/character/watchdog.html b/content/docs/10.0.1/components/drivers/character/watchdog.html
index e6b148c..c16395f 100644
--- a/content/docs/10.0.1/components/drivers/character/watchdog.html
+++ b/content/docs/10.0.1/components/drivers/character/watchdog.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/index.html b/content/docs/10.0.1/components/drivers/index.html
index 86f0042..2f09403 100644
--- a/content/docs/10.0.1/components/drivers/index.html
+++ b/content/docs/10.0.1/components/drivers/index.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/ethernet.html b/content/docs/10.0.1/components/drivers/special/ethernet.html
index 67795a9..49d6767 100644
--- a/content/docs/10.0.1/components/drivers/special/ethernet.html
+++ b/content/docs/10.0.1/components/drivers/special/ethernet.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/framebuffer.html b/content/docs/10.0.1/components/drivers/special/framebuffer.html
index e5d6d24..419c44c 100644
--- a/content/docs/10.0.1/components/drivers/special/framebuffer.html
+++ b/content/docs/10.0.1/components/drivers/special/framebuffer.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/i2c.html b/content/docs/10.0.1/components/drivers/special/i2c.html
index 2d2405e..809140c 100644
--- a/content/docs/10.0.1/components/drivers/special/i2c.html
+++ b/content/docs/10.0.1/components/drivers/special/i2c.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/index.html b/content/docs/10.0.1/components/drivers/special/index.html
index 7e589fb..7c431fa 100644
--- a/content/docs/10.0.1/components/drivers/special/index.html
+++ b/content/docs/10.0.1/components/drivers/special/index.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/lcd.html b/content/docs/10.0.1/components/drivers/special/lcd.html
index e9b1c95..653fe9b 100644
--- a/content/docs/10.0.1/components/drivers/special/lcd.html
+++ b/content/docs/10.0.1/components/drivers/special/lcd.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/mtd.html b/content/docs/10.0.1/components/drivers/special/mtd.html
index c919120..f6114c8 100644
--- a/content/docs/10.0.1/components/drivers/special/mtd.html
+++ b/content/docs/10.0.1/components/drivers/special/mtd.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/sdio.html b/content/docs/10.0.1/components/drivers/special/sdio.html
index 08c0c1a..b970778 100644
--- a/content/docs/10.0.1/components/drivers/special/sdio.html
+++ b/content/docs/10.0.1/components/drivers/special/sdio.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/spi.html b/content/docs/10.0.1/components/drivers/special/spi.html
index 4479c60..e2b7907 100644
--- a/content/docs/10.0.1/components/drivers/special/spi.html
+++ b/content/docs/10.0.1/components/drivers/special/spi.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/usbdev.html b/content/docs/10.0.1/components/drivers/special/usbdev.html
index 4e2dd1e..2d5673a 100644
--- a/content/docs/10.0.1/components/drivers/special/usbdev.html
+++ b/content/docs/10.0.1/components/drivers/special/usbdev.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/drivers/special/usbhost.html b/content/docs/10.0.1/components/drivers/special/usbhost.html
index fa98f49..6b1dce1 100644
--- a/content/docs/10.0.1/components/drivers/special/usbhost.html
+++ b/content/docs/10.0.1/components/drivers/special/usbhost.html
@@ -99,6 +99,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/filesystem.html b/content/docs/10.0.1/components/filesystem.html
index 8f52a99..fcde9d7 100644
--- a/content/docs/10.0.1/components/filesystem.html
+++ b/content/docs/10.0.1/components/filesystem.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/index.html b/content/docs/10.0.1/components/index.html
index a5e137a..5923f3f 100644
--- a/content/docs/10.0.1/components/index.html
+++ b/content/docs/10.0.1/components/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/builtin.html b/content/docs/10.0.1/components/nsh/builtin.html
index dd2dcf2..89279e9 100644
--- a/content/docs/10.0.1/components/nsh/builtin.html
+++ b/content/docs/10.0.1/components/nsh/builtin.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/commands.html b/content/docs/10.0.1/components/nsh/commands.html
index 3af0663..3afb06a 100644
--- a/content/docs/10.0.1/components/nsh/commands.html
+++ b/content/docs/10.0.1/components/nsh/commands.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/config.html b/content/docs/10.0.1/components/nsh/config.html
index 6a4a373..099152d 100644
--- a/content/docs/10.0.1/components/nsh/config.html
+++ b/content/docs/10.0.1/components/nsh/config.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/customizing.html b/content/docs/10.0.1/components/nsh/customizing.html
index 2e5c24e..99e6606 100644
--- a/content/docs/10.0.1/components/nsh/customizing.html
+++ b/content/docs/10.0.1/components/nsh/customizing.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/index.html b/content/docs/10.0.1/components/nsh/index.html
index 56d4b9b..82fbe8d 100644
--- a/content/docs/10.0.1/components/nsh/index.html
+++ b/content/docs/10.0.1/components/nsh/index.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/installation.html b/content/docs/10.0.1/components/nsh/installation.html
index eae9f64..d711c59 100644
--- a/content/docs/10.0.1/components/nsh/installation.html
+++ b/content/docs/10.0.1/components/nsh/installation.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/login.html b/content/docs/10.0.1/components/nsh/login.html
index 9306558..3e235ab 100644
--- a/content/docs/10.0.1/components/nsh/login.html
+++ b/content/docs/10.0.1/components/nsh/login.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nsh/nsh.html b/content/docs/10.0.1/components/nsh/nsh.html
index bbd6f67..f693ff9 100644
--- a/content/docs/10.0.1/components/nsh/nsh.html
+++ b/content/docs/10.0.1/components/nsh/nsh.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxflat.html b/content/docs/10.0.1/components/nxflat.html
index 22f4532..1ac07de 100644
--- a/content/docs/10.0.1/components/nxflat.html
+++ b/content/docs/10.0.1/components/nxflat.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/appendix.html b/content/docs/10.0.1/components/nxgraphics/appendix.html
index 893548b..485e5d3 100644
--- a/content/docs/10.0.1/components/nxgraphics/appendix.html
+++ b/content/docs/10.0.1/components/nxgraphics/appendix.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/index.html b/content/docs/10.0.1/components/nxgraphics/index.html
index f541ead..d99b66b 100644
--- a/content/docs/10.0.1/components/nxgraphics/index.html
+++ b/content/docs/10.0.1/components/nxgraphics/index.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/nx.html b/content/docs/10.0.1/components/nxgraphics/nx.html
index f756de5..2dc0899 100644
--- a/content/docs/10.0.1/components/nxgraphics/nx.html
+++ b/content/docs/10.0.1/components/nxgraphics/nx.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/nxcursor.html b/content/docs/10.0.1/components/nxgraphics/nxcursor.html
index 69c88f3..52e050a 100644
--- a/content/docs/10.0.1/components/nxgraphics/nxcursor.html
+++ b/content/docs/10.0.1/components/nxgraphics/nxcursor.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/nxfonts.html b/content/docs/10.0.1/components/nxgraphics/nxfonts.html
index 851f5e3..2ef8520 100644
--- a/content/docs/10.0.1/components/nxgraphics/nxfonts.html
+++ b/content/docs/10.0.1/components/nxgraphics/nxfonts.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/nxgl.html b/content/docs/10.0.1/components/nxgraphics/nxgl.html
index e9c8cb3..77e6415 100644
--- a/content/docs/10.0.1/components/nxgraphics/nxgl.html
+++ b/content/docs/10.0.1/components/nxgraphics/nxgl.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/nxtk.html b/content/docs/10.0.1/components/nxgraphics/nxtk.html
index 5a4713e..412e46d 100644
--- a/content/docs/10.0.1/components/nxgraphics/nxtk.html
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@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxgraphics/sample.html b/content/docs/10.0.1/components/nxgraphics/sample.html
index b133681..8ee6acc 100644
--- a/content/docs/10.0.1/components/nxgraphics/sample.html
+++ b/content/docs/10.0.1/components/nxgraphics/sample.html
@@ -99,6 +99,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/nxwidgets.html b/content/docs/10.0.1/components/nxwidgets.html
index d5447c0..a4dea2d 100644
--- a/content/docs/10.0.1/components/nxwidgets.html
+++ b/content/docs/10.0.1/components/nxwidgets.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/paging.html b/content/docs/10.0.1/components/paging.html
index 4f90ea3..2f2a01a 100644
--- a/content/docs/10.0.1/components/paging.html
+++ b/content/docs/10.0.1/components/paging.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/power.html b/content/docs/10.0.1/components/power.html
index 64e9478..7659657 100644
--- a/content/docs/10.0.1/components/power.html
+++ b/content/docs/10.0.1/components/power.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/socketcan.html b/content/docs/10.0.1/components/socketcan.html
index 63786ac..a601552 100644
--- a/content/docs/10.0.1/components/socketcan.html
+++ b/content/docs/10.0.1/components/socketcan.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/components/syslog.html b/content/docs/10.0.1/components/syslog.html
index 9b5b766..32d0ff5 100644
--- a/content/docs/10.0.1/components/syslog.html
+++ b/content/docs/10.0.1/components/syslog.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/contributing/coding_style.html b/content/docs/10.0.1/contributing/coding_style.html
index 16b2313..6f71884 100644
--- a/content/docs/10.0.1/contributing/coding_style.html
+++ b/content/docs/10.0.1/contributing/coding_style.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/contributing/documentation.html b/content/docs/10.0.1/contributing/documentation.html
index a70346f..aefbda6 100644
--- a/content/docs/10.0.1/contributing/documentation.html
+++ b/content/docs/10.0.1/contributing/documentation.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/contributing/index.html b/content/docs/10.0.1/contributing/index.html
index 9dc1f76..c85e9b9 100644
--- a/content/docs/10.0.1/contributing/index.html
+++ b/content/docs/10.0.1/contributing/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/contributing/making-changes.html b/content/docs/10.0.1/contributing/making-changes.html
index bba27c3..4377877 100644
--- a/content/docs/10.0.1/contributing/making-changes.html
+++ b/content/docs/10.0.1/contributing/making-changes.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/contributing/workflow.html b/content/docs/10.0.1/contributing/workflow.html
index 34e623e..b09a805 100644
--- a/content/docs/10.0.1/contributing/workflow.html
+++ b/content/docs/10.0.1/contributing/workflow.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/genindex.html b/content/docs/10.0.1/genindex.html
index 9a41e0c..aba548b 100644
--- a/content/docs/10.0.1/genindex.html
+++ b/content/docs/10.0.1/genindex.html
@@ -99,6 +99,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/glossary.html b/content/docs/10.0.1/glossary.html
index 1105dff..52158db 100644
--- a/content/docs/10.0.1/glossary.html
+++ b/content/docs/10.0.1/glossary.html
@@ -98,6 +98,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/guides/drivers.html b/content/docs/10.0.1/guides/drivers.html
index 6058068..2c7f05e 100644
--- a/content/docs/10.0.1/guides/drivers.html
+++ b/content/docs/10.0.1/guides/drivers.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/guides/index.html b/content/docs/10.0.1/guides/index.html
index 44ea1c2..a8311cc 100644
--- a/content/docs/10.0.1/guides/index.html
+++ b/content/docs/10.0.1/guides/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/guides/nfs.html b/content/docs/10.0.1/guides/nfs.html
index 2b4e030..90da1e6 100644
--- a/content/docs/10.0.1/guides/nfs.html
+++ b/content/docs/10.0.1/guides/nfs.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/guides/simulator.html b/content/docs/10.0.1/guides/simulator.html
index 41192d1..fb82ef3 100644
--- a/content/docs/10.0.1/guides/simulator.html
+++ b/content/docs/10.0.1/guides/simulator.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/guides/usbtrace.html b/content/docs/10.0.1/guides/usbtrace.html
index e6d64d8..9f20730 100644
--- a/content/docs/10.0.1/guides/usbtrace.html
+++ b/content/docs/10.0.1/guides/usbtrace.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/index.html b/content/docs/10.0.1/index.html
index fd8f15f..589098c 100644
--- a/content/docs/10.0.1/index.html
+++ b/content/docs/10.0.1/index.html
@@ -98,6 +98,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
@@ -213,7 +215,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 32-bit microcontroller environments, the primary governing standards in NuttX are Posix and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 23 November 21 at 00:07</p>
+<p>Last Updated: 24 November 21 at 00:06</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/10.0.1/introduction/about.html b/content/docs/10.0.1/introduction/about.html
index 853f170..77a4941 100644
--- a/content/docs/10.0.1/introduction/about.html
+++ b/content/docs/10.0.1/introduction/about.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/detailed_support.html b/content/docs/10.0.1/introduction/detailed_support.html
index bc6ffa9..cd98b32 100644
--- a/content/docs/10.0.1/introduction/detailed_support.html
+++ b/content/docs/10.0.1/introduction/detailed_support.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/development_environments.html b/content/docs/10.0.1/introduction/development_environments.html
index fc5673f..2e7d7c6 100644
--- a/content/docs/10.0.1/introduction/development_environments.html
+++ b/content/docs/10.0.1/introduction/development_environments.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/index.html b/content/docs/10.0.1/introduction/index.html
index 83ee85d..d5d247f 100644
--- a/content/docs/10.0.1/introduction/index.html
+++ b/content/docs/10.0.1/introduction/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/inviolables.html b/content/docs/10.0.1/introduction/inviolables.html
index 67c324b..c300515 100644
--- a/content/docs/10.0.1/introduction/inviolables.html
+++ b/content/docs/10.0.1/introduction/inviolables.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/licensing.html b/content/docs/10.0.1/introduction/licensing.html
index a6368c3..fd8cded 100644
--- a/content/docs/10.0.1/introduction/licensing.html
+++ b/content/docs/10.0.1/introduction/licensing.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/resources.html b/content/docs/10.0.1/introduction/resources.html
index 06ac6c9..a32ff0c 100644
--- a/content/docs/10.0.1/introduction/resources.html
+++ b/content/docs/10.0.1/introduction/resources.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/supported_platforms.html b/content/docs/10.0.1/introduction/supported_platforms.html
index 640cbaf..b4a09fa 100644
--- a/content/docs/10.0.1/introduction/supported_platforms.html
+++ b/content/docs/10.0.1/introduction/supported_platforms.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/introduction/trademarks.html b/content/docs/10.0.1/introduction/trademarks.html
index e8e667d..4be019e 100644
--- a/content/docs/10.0.1/introduction/trademarks.html
+++ b/content/docs/10.0.1/introduction/trademarks.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/build_and_make.html b/content/docs/10.0.1/quickstart/build_and_make.html
index 3e61ce1..92378fc 100644
--- a/content/docs/10.0.1/quickstart/build_and_make.html
+++ b/content/docs/10.0.1/quickstart/build_and_make.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/compiling.html b/content/docs/10.0.1/quickstart/compiling.html
index b87e311..d7ab99c 100644
--- a/content/docs/10.0.1/quickstart/compiling.html
+++ b/content/docs/10.0.1/quickstart/compiling.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/configuring.html b/content/docs/10.0.1/quickstart/configuring.html
index 0a52375..79ef355 100644
--- a/content/docs/10.0.1/quickstart/configuring.html
+++ b/content/docs/10.0.1/quickstart/configuring.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/debugging.html b/content/docs/10.0.1/quickstart/debugging.html
index 76e8c32..3082ea6 100644
--- a/content/docs/10.0.1/quickstart/debugging.html
+++ b/content/docs/10.0.1/quickstart/debugging.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/index.html b/content/docs/10.0.1/quickstart/index.html
index a101083..ca2fbbd 100644
--- a/content/docs/10.0.1/quickstart/index.html
+++ b/content/docs/10.0.1/quickstart/index.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/install.html b/content/docs/10.0.1/quickstart/install.html
index 86f942c..ef33c58 100644
--- a/content/docs/10.0.1/quickstart/install.html
+++ b/content/docs/10.0.1/quickstart/install.html
@@ -101,6 +101,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/organization.html b/content/docs/10.0.1/quickstart/organization.html
index 072478f..bd70517 100644
--- a/content/docs/10.0.1/quickstart/organization.html
+++ b/content/docs/10.0.1/quickstart/organization.html
@@ -99,6 +99,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/quickstart.html b/content/docs/10.0.1/quickstart/quickstart.html
index 41cb5b2..3f4ba3c 100644
--- a/content/docs/10.0.1/quickstart/quickstart.html
+++ b/content/docs/10.0.1/quickstart/quickstart.html
@@ -101,6 +101,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.0.1/quickstart/running.html b/content/docs/10.0.1/quickstart/running.html
index 8dbd1de..81dc93b 100644
--- a/content/docs/10.0.1/quickstart/running.html
+++ b/content/docs/10.0.1/quickstart/running.html
@@ -101,6 +101,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
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<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/foc.html b/content/docs/10.1.0/components/drivers/character/foc.html
index d90e9a4..0a38294 100644
--- a/content/docs/10.1.0/components/drivers/character/foc.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/index.html b/content/docs/10.1.0/components/drivers/character/index.html
index 6d81960..d687d99 100644
--- a/content/docs/10.1.0/components/drivers/character/index.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/keypad.html b/content/docs/10.1.0/components/drivers/character/keypad.html
index 37bce3e..d3b9900 100644
--- a/content/docs/10.1.0/components/drivers/character/keypad.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/note.html b/content/docs/10.1.0/components/drivers/character/note.html
index 0026288..7c18887 100644
--- a/content/docs/10.1.0/components/drivers/character/note.html
+++ b/content/docs/10.1.0/components/drivers/character/note.html
@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/pwm.html b/content/docs/10.1.0/components/drivers/character/pwm.html
index 1b2399b..d52f95e 100644
--- a/content/docs/10.1.0/components/drivers/character/pwm.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/quadrature.html b/content/docs/10.1.0/components/drivers/character/quadrature.html
index 8c985c0..89c0810 100644
--- a/content/docs/10.1.0/components/drivers/character/quadrature.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/rtc.html b/content/docs/10.1.0/components/drivers/character/rtc.html
index 1582028..5adee1e 100644
--- a/content/docs/10.1.0/components/drivers/character/rtc.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/serial.html b/content/docs/10.1.0/components/drivers/character/serial.html
index 8b82a66..f311912 100644
--- a/content/docs/10.1.0/components/drivers/character/serial.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/timer.html b/content/docs/10.1.0/components/drivers/character/timer.html
index 44262cd..be17789 100644
--- a/content/docs/10.1.0/components/drivers/character/timer.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/touchscreen.html b/content/docs/10.1.0/components/drivers/character/touchscreen.html
index f9e7474..9109ddf 100644
--- a/content/docs/10.1.0/components/drivers/character/touchscreen.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/character/watchdog.html b/content/docs/10.1.0/components/drivers/character/watchdog.html
index 049e795..e89562d 100644
--- a/content/docs/10.1.0/components/drivers/character/watchdog.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/index.html b/content/docs/10.1.0/components/drivers/index.html
index 5a9dbf1..4f93863 100644
--- a/content/docs/10.1.0/components/drivers/index.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/ethernet.html b/content/docs/10.1.0/components/drivers/special/ethernet.html
index 3929486..003d0a2 100644
--- a/content/docs/10.1.0/components/drivers/special/ethernet.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/framebuffer.html b/content/docs/10.1.0/components/drivers/special/framebuffer.html
index f9aec1e..9999112 100644
--- a/content/docs/10.1.0/components/drivers/special/framebuffer.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/i2c.html b/content/docs/10.1.0/components/drivers/special/i2c.html
index 4c56854..3e3c8ce 100644
--- a/content/docs/10.1.0/components/drivers/special/i2c.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
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+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/index.html b/content/docs/10.1.0/components/drivers/special/index.html
index 962dd46..8ccfdf2 100644
--- a/content/docs/10.1.0/components/drivers/special/index.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/lcd.html b/content/docs/10.1.0/components/drivers/special/lcd.html
index 28095d9..f9dfa2f 100644
--- a/content/docs/10.1.0/components/drivers/special/lcd.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/mtd.html b/content/docs/10.1.0/components/drivers/special/mtd.html
index 057e121..f8f2413 100644
--- a/content/docs/10.1.0/components/drivers/special/mtd.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/sdio.html b/content/docs/10.1.0/components/drivers/special/sdio.html
index b7269ab..4427398 100644
--- a/content/docs/10.1.0/components/drivers/special/sdio.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/socketcan.html b/content/docs/10.1.0/components/drivers/special/socketcan.html
index 1a81417..7af8079 100644
--- a/content/docs/10.1.0/components/drivers/special/socketcan.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/spi.html b/content/docs/10.1.0/components/drivers/special/spi.html
index 5a7579d..3a61d95 100644
--- a/content/docs/10.1.0/components/drivers/special/spi.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/syslog.html b/content/docs/10.1.0/components/drivers/special/syslog.html
index fdba31a..38db2ac 100644
--- a/content/docs/10.1.0/components/drivers/special/syslog.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/usbdev.html b/content/docs/10.1.0/components/drivers/special/usbdev.html
index 5d91023..e9a3e70 100644
--- a/content/docs/10.1.0/components/drivers/special/usbdev.html
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@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/drivers/special/usbhost.html b/content/docs/10.1.0/components/drivers/special/usbhost.html
index bd73826..a698eb3 100644
--- a/content/docs/10.1.0/components/drivers/special/usbhost.html
+++ b/content/docs/10.1.0/components/drivers/special/usbhost.html
@@ -98,6 +98,8 @@
<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/filesystem.html b/content/docs/10.1.0/components/filesystem.html
index e5ad59b..34fe353 100644
--- a/content/docs/10.1.0/components/filesystem.html
+++ b/content/docs/10.1.0/components/filesystem.html
@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/index.html b/content/docs/10.1.0/components/index.html
index b5887ea..c3e9a86 100644
--- a/content/docs/10.1.0/components/index.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxflat.html b/content/docs/10.1.0/components/nxflat.html
index 6e1e15e..99995d2 100644
--- a/content/docs/10.1.0/components/nxflat.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/appendix.html b/content/docs/10.1.0/components/nxgraphics/appendix.html
index edfee9a..da84545 100644
--- a/content/docs/10.1.0/components/nxgraphics/appendix.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/index.html b/content/docs/10.1.0/components/nxgraphics/index.html
index ad25dff..28210b3 100644
--- a/content/docs/10.1.0/components/nxgraphics/index.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/nx.html b/content/docs/10.1.0/components/nxgraphics/nx.html
index 628fd68..381c88c 100644
--- a/content/docs/10.1.0/components/nxgraphics/nx.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/nxcursor.html b/content/docs/10.1.0/components/nxgraphics/nxcursor.html
index ed91769..3533071 100644
--- a/content/docs/10.1.0/components/nxgraphics/nxcursor.html
+++ b/content/docs/10.1.0/components/nxgraphics/nxcursor.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/nxfonts.html b/content/docs/10.1.0/components/nxgraphics/nxfonts.html
index 074c545..3a04ff3 100644
--- a/content/docs/10.1.0/components/nxgraphics/nxfonts.html
+++ b/content/docs/10.1.0/components/nxgraphics/nxfonts.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/nxgl.html b/content/docs/10.1.0/components/nxgraphics/nxgl.html
index 429c3e7..ff7fd0f 100644
--- a/content/docs/10.1.0/components/nxgraphics/nxgl.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/nxtk.html b/content/docs/10.1.0/components/nxgraphics/nxtk.html
index a8a899b..a8242a6 100644
--- a/content/docs/10.1.0/components/nxgraphics/nxtk.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxgraphics/sample.html b/content/docs/10.1.0/components/nxgraphics/sample.html
index 79b03ad..6c0f328 100644
--- a/content/docs/10.1.0/components/nxgraphics/sample.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/nxwidgets.html b/content/docs/10.1.0/components/nxwidgets.html
index 7908ac2..e6cc574 100644
--- a/content/docs/10.1.0/components/nxwidgets.html
+++ b/content/docs/10.1.0/components/nxwidgets.html
@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/paging.html b/content/docs/10.1.0/components/paging.html
index 3ce2c81..88e6858 100644
--- a/content/docs/10.1.0/components/paging.html
+++ b/content/docs/10.1.0/components/paging.html
@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/components/power.html b/content/docs/10.1.0/components/power.html
index dab8b3f..630eb6f 100644
--- a/content/docs/10.1.0/components/power.html
+++ b/content/docs/10.1.0/components/power.html
@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/contributing/coding_style.html b/content/docs/10.1.0/contributing/coding_style.html
index db09773..b19dc63 100644
--- a/content/docs/10.1.0/contributing/coding_style.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/contributing/documentation.html b/content/docs/10.1.0/contributing/documentation.html
index 46b2608..7072fc8 100644
--- a/content/docs/10.1.0/contributing/documentation.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/contributing/index.html b/content/docs/10.1.0/contributing/index.html
index 4647724..a135f1b 100644
--- a/content/docs/10.1.0/contributing/index.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/contributing/making-changes.html b/content/docs/10.1.0/contributing/making-changes.html
index 2134567..264d670 100644
--- a/content/docs/10.1.0/contributing/making-changes.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/contributing/workflow.html b/content/docs/10.1.0/contributing/workflow.html
index 3764e70..822bb93 100644
--- a/content/docs/10.1.0/contributing/workflow.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/genindex.html b/content/docs/10.1.0/genindex.html
index 7127733..78d5f54 100644
--- a/content/docs/10.1.0/genindex.html
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@@ -97,6 +97,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/glossary.html b/content/docs/10.1.0/glossary.html
index 4f79d62..699a406 100644
--- a/content/docs/10.1.0/glossary.html
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@@ -97,6 +97,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/guides/cpp_cmake.html b/content/docs/10.1.0/guides/cpp_cmake.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
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</div>
diff --git a/content/docs/10.1.0/guides/drivers.html b/content/docs/10.1.0/guides/drivers.html
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--- a/content/docs/10.1.0/guides/drivers.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
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</div>
diff --git a/content/docs/10.1.0/guides/index.html b/content/docs/10.1.0/guides/index.html
index ffaa9ce..2f84498 100644
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+++ b/content/docs/10.1.0/guides/index.html
@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/guides/nfs.html b/content/docs/10.1.0/guides/nfs.html
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--- a/content/docs/10.1.0/guides/nfs.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
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</div>
diff --git a/content/docs/10.1.0/guides/simulator.html b/content/docs/10.1.0/guides/simulator.html
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--- a/content/docs/10.1.0/guides/simulator.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
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</div>
diff --git a/content/docs/10.1.0/guides/tasktrace.html b/content/docs/10.1.0/guides/tasktrace.html
index 3d7bdf4..ab1448e 100644
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@@ -98,6 +98,8 @@
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+ <option value="../../10.2.0" >10.2.0</option>
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</div>
diff --git a/content/docs/10.1.0/guides/tasktraceinternal.html b/content/docs/10.1.0/guides/tasktraceinternal.html
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@@ -98,6 +98,8 @@
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--- a/content/docs/10.1.0/guides/tasktraceuser.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
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</div>
diff --git a/content/docs/10.1.0/guides/usbtrace.html b/content/docs/10.1.0/guides/usbtrace.html
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--- a/content/docs/10.1.0/guides/usbtrace.html
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@@ -98,6 +98,8 @@
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+ <option value="../../10.2.0" >10.2.0</option>
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<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
@@ -213,7 +215,7 @@ by following these <a class="reference internal" href="contributing/documentatio
<div class="section" id="nuttx-documentation">
<h1>NuttX Documentation<a class="headerlink" href="#nuttx-documentation" title="Permalink to this headline">¶</a></h1>
<p>NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOS’s (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).</p>
-<p>Last Updated: 23 November 21 at 00:07</p>
+<p>Last Updated: 24 November 21 at 00:07</p>
<div class="toctree-wrapper compound">
<p class="caption"><span class="caption-text">Table of Contents</span></p>
<ul class="current">
diff --git a/content/docs/10.1.0/introduction/about.html b/content/docs/10.1.0/introduction/about.html
index 74458fb..dcd4fd5 100644
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/detailed_support.html b/content/docs/10.1.0/introduction/detailed_support.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/development_environments.html b/content/docs/10.1.0/introduction/development_environments.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/index.html b/content/docs/10.1.0/introduction/index.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/inviolables.html b/content/docs/10.1.0/introduction/inviolables.html
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--- a/content/docs/10.1.0/introduction/inviolables.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/licensing.html b/content/docs/10.1.0/introduction/licensing.html
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--- a/content/docs/10.1.0/introduction/licensing.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/resources.html b/content/docs/10.1.0/introduction/resources.html
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--- a/content/docs/10.1.0/introduction/resources.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/supported_platforms.html b/content/docs/10.1.0/introduction/supported_platforms.html
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--- a/content/docs/10.1.0/introduction/supported_platforms.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/introduction/trademarks.html b/content/docs/10.1.0/introduction/trademarks.html
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--- a/content/docs/10.1.0/introduction/trademarks.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/platforms/arm/index.html b/content/docs/10.1.0/platforms/arm/index.html
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<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/platforms/arm/nrf52/boards/nrf52832-mdk/index.html b/content/docs/10.1.0/platforms/arm/nrf52/boards/nrf52832-mdk/index.html
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<option value="../../../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../../../10.2.0" >10.2.0</option>
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diff --git a/content/docs/10.1.0/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html b/content/docs/10.1.0/platforms/arm/nrf52/boards/nrf52832-sparkfun/index.html
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<option value="../../../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../../../10.2.0" >10.2.0</option>
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</div>
diff --git a/content/docs/10.1.0/platforms/arm/nrf52/index.html b/content/docs/10.1.0/platforms/arm/nrf52/index.html
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<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
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</select>
</div>
diff --git a/content/docs/10.1.0/platforms/index.html b/content/docs/10.1.0/platforms/index.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
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</div>
diff --git a/content/docs/10.1.0/platforms/risc-v/bl602/index.html b/content/docs/10.1.0/platforms/risc-v/bl602/index.html
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<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
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</div>
diff --git a/content/docs/10.1.0/platforms/risc-v/index.html b/content/docs/10.1.0/platforms/risc-v/index.html
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<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
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</div>
diff --git a/content/docs/10.1.0/platforms/xtensa/esp32/boards/esp32-devkitc/index.html b/content/docs/10.1.0/platforms/xtensa/esp32/boards/esp32-devkitc/index.html
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@@ -98,6 +98,8 @@
<option value="../../../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../../../10.2.0" >10.2.0</option>
+
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</div>
diff --git a/content/docs/10.1.0/platforms/xtensa/esp32/index.html b/content/docs/10.1.0/platforms/xtensa/esp32/index.html
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--- a/content/docs/10.1.0/platforms/xtensa/esp32/index.html
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<option value="../../../../10.1.0" >10.1.0</option>
+ <option value="../../../../10.2.0" >10.2.0</option>
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</div>
diff --git a/content/docs/10.1.0/platforms/xtensa/index.html b/content/docs/10.1.0/platforms/xtensa/index.html
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--- a/content/docs/10.1.0/platforms/xtensa/index.html
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<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/compiling.html b/content/docs/10.1.0/quickstart/compiling.html
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--- a/content/docs/10.1.0/quickstart/compiling.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/configuring.html b/content/docs/10.1.0/quickstart/configuring.html
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--- a/content/docs/10.1.0/quickstart/configuring.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/debugging.html b/content/docs/10.1.0/quickstart/debugging.html
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--- a/content/docs/10.1.0/quickstart/debugging.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/index.html b/content/docs/10.1.0/quickstart/index.html
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--- a/content/docs/10.1.0/quickstart/index.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/install.html b/content/docs/10.1.0/quickstart/install.html
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--- a/content/docs/10.1.0/quickstart/install.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/organization.html b/content/docs/10.1.0/quickstart/organization.html
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--- a/content/docs/10.1.0/quickstart/organization.html
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@@ -98,6 +98,8 @@
<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/quickstart/running.html b/content/docs/10.1.0/quickstart/running.html
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--- a/content/docs/10.1.0/quickstart/running.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/index.html b/content/docs/10.1.0/reference/index.html
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--- a/content/docs/10.1.0/reference/index.html
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<option value="../../10.1.0" >10.1.0</option>
+ <option value="../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/addrenv.html b/content/docs/10.1.0/reference/os/addrenv.html
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--- a/content/docs/10.1.0/reference/os/addrenv.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/app_vs_os.html b/content/docs/10.1.0/reference/os/app_vs_os.html
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--- a/content/docs/10.1.0/reference/os/app_vs_os.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/arch.html b/content/docs/10.1.0/reference/os/arch.html
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--- a/content/docs/10.1.0/reference/os/arch.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/board.html b/content/docs/10.1.0/reference/os/board.html
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--- a/content/docs/10.1.0/reference/os/board.html
+++ b/content/docs/10.1.0/reference/os/board.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/conventions.html b/content/docs/10.1.0/reference/os/conventions.html
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--- a/content/docs/10.1.0/reference/os/conventions.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/index.html b/content/docs/10.1.0/reference/os/index.html
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--- a/content/docs/10.1.0/reference/os/index.html
+++ b/content/docs/10.1.0/reference/os/index.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/iob.html b/content/docs/10.1.0/reference/os/iob.html
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--- a/content/docs/10.1.0/reference/os/iob.html
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@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/led.html b/content/docs/10.1.0/reference/os/led.html
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--- a/content/docs/10.1.0/reference/os/led.html
+++ b/content/docs/10.1.0/reference/os/led.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/nuttx.html b/content/docs/10.1.0/reference/os/nuttx.html
index 2ffd2e9..8e045c0 100644
--- a/content/docs/10.1.0/reference/os/nuttx.html
+++ b/content/docs/10.1.0/reference/os/nuttx.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/paging.html b/content/docs/10.1.0/reference/os/paging.html
index 310335c..a18e984 100644
--- a/content/docs/10.1.0/reference/os/paging.html
+++ b/content/docs/10.1.0/reference/os/paging.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/shm.html b/content/docs/10.1.0/reference/os/shm.html
index 8fd672e..c5c264f 100644
--- a/content/docs/10.1.0/reference/os/shm.html
+++ b/content/docs/10.1.0/reference/os/shm.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/smp.html b/content/docs/10.1.0/reference/os/smp.html
index 919b741..37488a9 100644
--- a/content/docs/10.1.0/reference/os/smp.html
+++ b/content/docs/10.1.0/reference/os/smp.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/time_clock.html b/content/docs/10.1.0/reference/os/time_clock.html
index 9980bcc..57debd1 100644
--- a/content/docs/10.1.0/reference/os/time_clock.html
+++ b/content/docs/10.1.0/reference/os/time_clock.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/os/wqueue.html b/content/docs/10.1.0/reference/os/wqueue.html
index 68be263..50901e9 100644
--- a/content/docs/10.1.0/reference/os/wqueue.html
+++ b/content/docs/10.1.0/reference/os/wqueue.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/01_task_control.html b/content/docs/10.1.0/reference/user/01_task_control.html
index c79c5ff..0c809e9 100644
--- a/content/docs/10.1.0/reference/user/01_task_control.html
+++ b/content/docs/10.1.0/reference/user/01_task_control.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/02_task_scheduling.html b/content/docs/10.1.0/reference/user/02_task_scheduling.html
index 6555a3f..a0569e3 100644
--- a/content/docs/10.1.0/reference/user/02_task_scheduling.html
+++ b/content/docs/10.1.0/reference/user/02_task_scheduling.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/03_task_control.html b/content/docs/10.1.0/reference/user/03_task_control.html
index d292fd5..5a49a89 100644
--- a/content/docs/10.1.0/reference/user/03_task_control.html
+++ b/content/docs/10.1.0/reference/user/03_task_control.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/04_message_queue.html b/content/docs/10.1.0/reference/user/04_message_queue.html
index f7c119b..c288a1b 100644
--- a/content/docs/10.1.0/reference/user/04_message_queue.html
+++ b/content/docs/10.1.0/reference/user/04_message_queue.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/05_counting_semaphore.html b/content/docs/10.1.0/reference/user/05_counting_semaphore.html
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--- a/content/docs/10.1.0/reference/user/05_counting_semaphore.html
+++ b/content/docs/10.1.0/reference/user/05_counting_semaphore.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/06_clocks_timers.html b/content/docs/10.1.0/reference/user/06_clocks_timers.html
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--- a/content/docs/10.1.0/reference/user/06_clocks_timers.html
+++ b/content/docs/10.1.0/reference/user/06_clocks_timers.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/07_signals.html b/content/docs/10.1.0/reference/user/07_signals.html
index 49a6db1..7574c3b 100644
--- a/content/docs/10.1.0/reference/user/07_signals.html
+++ b/content/docs/10.1.0/reference/user/07_signals.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/08_pthread.html b/content/docs/10.1.0/reference/user/08_pthread.html
index 71bf488..63a00c4 100644
--- a/content/docs/10.1.0/reference/user/08_pthread.html
+++ b/content/docs/10.1.0/reference/user/08_pthread.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/09_env_vars.html b/content/docs/10.1.0/reference/user/09_env_vars.html
index a57ce03..b0cfd73 100644
--- a/content/docs/10.1.0/reference/user/09_env_vars.html
+++ b/content/docs/10.1.0/reference/user/09_env_vars.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/10_filesystem.html b/content/docs/10.1.0/reference/user/10_filesystem.html
index 9a39331..87ae893 100644
--- a/content/docs/10.1.0/reference/user/10_filesystem.html
+++ b/content/docs/10.1.0/reference/user/10_filesystem.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/11_network.html b/content/docs/10.1.0/reference/user/11_network.html
index 6844408..0739c4f 100644
--- a/content/docs/10.1.0/reference/user/11_network.html
+++ b/content/docs/10.1.0/reference/user/11_network.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/12_shared_memory.html b/content/docs/10.1.0/reference/user/12_shared_memory.html
index 7277eb7..0a856f6 100644
--- a/content/docs/10.1.0/reference/user/12_shared_memory.html
+++ b/content/docs/10.1.0/reference/user/12_shared_memory.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/13_boardctl.html b/content/docs/10.1.0/reference/user/13_boardctl.html
index 7b72cd8..4d421d0 100644
--- a/content/docs/10.1.0/reference/user/13_boardctl.html
+++ b/content/docs/10.1.0/reference/user/13_boardctl.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/13_logging.html b/content/docs/10.1.0/reference/user/13_logging.html
index db7917c..cf8cdcd 100644
--- a/content/docs/10.1.0/reference/user/13_logging.html
+++ b/content/docs/10.1.0/reference/user/13_logging.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/index.html b/content/docs/10.1.0/reference/user/index.html
index 274df75..6f41df7 100644
--- a/content/docs/10.1.0/reference/user/index.html
+++ b/content/docs/10.1.0/reference/user/index.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/reference/user/structures.html b/content/docs/10.1.0/reference/user/structures.html
index 3088a43..86f1894 100644
--- a/content/docs/10.1.0/reference/user/structures.html
+++ b/content/docs/10.1.0/reference/user/structures.html
@@ -98,6 +98,8 @@
<option value="../../../10.1.0" >10.1.0</option>
+ <option value="../../../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/search.html b/content/docs/10.1.0/search.html
index 7f7bba5..f97f1a2 100644
--- a/content/docs/10.1.0/search.html
+++ b/content/docs/10.1.0/search.html
@@ -100,6 +100,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
diff --git a/content/docs/10.1.0/substitutions.html b/content/docs/10.1.0/substitutions.html
index a8d4069..b3c8830 100644
--- a/content/docs/10.1.0/substitutions.html
+++ b/content/docs/10.1.0/substitutions.html
@@ -96,6 +96,8 @@
<option value="./../10.1.0" >10.1.0</option>
+ <option value="./../10.2.0" >10.2.0</option>
+
</select>
</div>
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diff --git a/content/docs/10.2.0/_sources/applications/index.rst.txt b/content/docs/10.2.0/_sources/applications/index.rst.txt
new file mode 100644
index 0000000..185c92b
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/index.rst.txt
@@ -0,0 +1,15 @@
+.. todo::
+ Applications included in ``apps`` repo should be documented here. This should also include information
+ on how to create a given application.
+
+Applications
+============
+
+NuttX ships a large number of applications covering a wide spectrum of functionality. These can be found in the `apps <https://github.com/apache/incubator-nuttx-apps>`_ repository. At the moment, these are documented in their individual README files so you can find more information at the repository.
+
+.. toctree::
+ :maxdepth: 2
+ :caption: Contents:
+
+ nsh/index.rst
+
diff --git a/content/docs/10.2.0/_sources/applications/nsh/builtin.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/builtin.rst.txt
new file mode 100644
index 0000000..b158b8b
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/nsh/builtin.rst.txt
@@ -0,0 +1,204 @@
+***************************
+NSH "Built-In" Applications
+***************************
+
+**Overview.** In addition to these commands that are a part of NSH,
+external programs can also be executed as NSH commands. These external
+programs are called "Built-In" Applications for historic reasons. That
+terminology is somewhat confusing because the actual NSH commands as
+described above are truly "built-into" NSH whereas these applications
+are really external to NuttX.
+
+These applications are built-into NSH in the sense that they can be
+executed by simply typing the name of the application at the NSH prompt.
+Built-in application support is enabled with these configuration option:
+
+ - ``CONFIG_BUILTIN``: Enable NuttX support for builtin applications.
+ - ``CONFIG_NSH_BUILTIN_APPS``: Enable NSH support for builtin
+ applications.
+
+When these configuration options are set, you will also be able to see
+the built-in applications if you enter "nsh> help". They will appear at
+the bottom of the list of NSH commands under::
+
+ Builtin Apps:
+
+Note that no detailed help information beyond the name of the built-in
+application is provided.
+
+Built-In Applications
+~~~~~~~~~~~~~~~~~~~~~
+
+**Overview.** The underlying logic that supports the NSH built-in
+applications is called "Built-In Applications". The builtin application
+logic can be found at ``apps/builtin``. This logic simply does the
+following:
+
+ #. It supports registration mechanism so that builtin applications can
+ dynamically register themselves at build time, and
+
+ #. Utility functions to look up, list, and execute the builtin
+ applications.
+
+**Built-In Application Utility Functions**. The utility functions
+exported by the builtin application logic are prototyped in
+``nuttx/include/nuttx/lib/builtin.h`` and ``apps/include/builtin.h``.
+These utility functions include:
+
+ - ``int builtin_isavail(FAR const char *appname);`` Checks for
+ availability of application registered as ``appname`` during build
+ time.
+
+ - ``const char *builtin_getname(int index);`` Returns a pointer to a
+ name of built-in application pointed by the ``index``. This is the
+ utility function that is used by NSH in order to list the available
+ built-in applications when "``nsh> help``" is entered.
+
+ - ``int exec_builtin(FAR const char *appname, FAR const char **argv);``
+ Executes built-in builtin application registered during compile time.
+ This is the utility function used by NSH to execute the built-in
+ application.
+
+**Autogenerated Header Files**. Application entry points with their
+requirements are gathered together in two files when NuttX is first
+built:
+
+ #. ``apps/builtin/builtin_proto.h``: Prototypes of application task
+ entry points.
+
+ #. ``apps/builtin/builtin_list.h``: Application specific information and
+ start-up requirements
+
+**Registration of Built-In Applications**. The NuttX build occurs in
+several phases as different build targets are executed: (1) *context*
+when the configuration is established, (2) *depend* when target
+dependencies are generated, and (3) *default* (``all``) when the normal
+compilation and link operations are performed. Built-in application
+information is collected during the make *context* build phase.
+
+An example application that can be "built-in" is be found in the
+``apps/examples/hello directory``. Let's walk through this specific
+cause to illustrate the general way that built-in applications are
+created and how they register themselves so that they can be used from
+NSH.
+
+``apps/examples/hello``. The main routine for apps/examples/hello can be
+found in ``apps/examples/hello/main.c``. The main routine is:
+
+.. code-block:: c
+
+ int hello_main(int argc, char *argv[])
+ {
+ printf("Hello, World!!\n");
+ return 0;
+ }
+
+This is the built in function that will be registered during the
+*context* build phase of the NuttX build. That registration is performed
+by logic in ``apps/examples/hello/Makefile``. But the build system gets
+to that logic through a rather tortuous path:
+
+ #. The top-level context make target is in ``nuttx/Makefile``. All build
+ targets depend upon the *context* build target. For the ``apps/``
+ directory, this build target will execute the *context* target in the
+ ``apps/Makefile``.
+
+ #. The ``apps/Makefile`` will, in turn, execute the *context* targets in
+ all of the configured sub-directories. In our case will include the
+ ``Makefile`` in ``apps/examples``.
+
+ #. And finally, the ``apps/examples/Makefile`` will execute the
+ *context* target in all configured ``example``\ sub-directories,
+ getting us finally to ``apps/examples/Makefile`` which is covered
+ below.
+
+**NOTE**: Since this context build phase can only be executed one time,
+any subsequent configuration changes that you make will, then, not be
+reflected in the build sequence. That is a common area of confusion.
+Before you can instantiate the new configuration, you have to first get
+rid of the old configuration. The most drastic way to this is::
+
+ make distclean
+
+But then you will have to re-configuration NuttX from scratch. But if
+you only want to re-build the configuration in the ``apps/``
+sub-directory, then there is a less labor-intensive way to do that. The
+following NuttX make command will remove the configuration only from the
+``apps/`` directory and will let you continue without re-configuring
+everything::
+
+ make apps_distclean
+
+Logic for the ``context`` target in ``apps/examples/hello/Makefile``
+registers the ``hello_main()`` application in the ``builtin``'s
+``builtin_proto.h``\ and ``builtin_list.h`` files. That logic that does
+that in ``apps/examples/hello/Makefile`` is abstracted below:
+
+ #. First, the ``Makefile`` includes ``apps/Make.defs``::
+
+ include $(APPDIR)/Make.defs
+
+ This defines a macro called ``REGISTER`` that adds data to the
+ *builtin* header files::
+
+ define REGISTER
+ @echo "Register: $1"
+ @echo "{ \"$1\", $2, $3, $4 }," >> "$(APPDIR)/builtin/builtin_list.h"
+ @echo "EXTERN int $4(int argc, char *argv[]);" >> "$(APPDIR)/builtin/builtin_proto.h"
+ endef
+
+ When this macro runs, you will see the output in the build
+ "``Register: hello``", that is a sure sign that the registration was
+ successful.
+
+ #. The make file then defines the application name (``hello``), the task
+ priority (default), and the stack size that will be allocated in the
+ task runs (2K)::
+
+ APPNAME = hello
+ PRIORITY = SCHED_PRIORITY_DEFAULT
+ STACKSIZE = 2048
+
+ #. And finally, the ``Makefile`` invokes the ``REGISTER`` macro to added
+ the ``hello_main()`` builtin application. Then, when the system build
+ completes, the ``hello`` command can be executed from the NSH command
+ line. When the ``hello`` command is executed, it will start the task
+ with entry point ``hello_main()`` with the default priority and with
+ a stack size of 2K::
+
+ context:
+ $(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+
+
+**Other Uses of Built-In Application.** The primary purpose of builtin
+applications is to support command line execution of applications from
+NSH. However, there is one other use of builtin applications that should
+be mentioned.
+
+ #. **binfs**. *binfs* is a tiny file system located at
+ ``apps/builtin/binfs.c``. This provides an alternative what of
+ visualizing installed builtin applications. Without *binfs*, you can
+ see the installed builtin applications using the NSH help command.
+ *binfs* will create a tiny pseudo-file system mounted at ``/bin``.
+ Using *binfs*, you can see the available builtin applications by
+ listing the contents of ``/bin`` directory. This gives some
+ superficial Unix-like compatibility, but does not really add any new
+ functionality.
+
+Synchronous Built-In Applications
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+By default, built-in commands started from the NSH command line will run
+asynchronously with NSH. If you want to force NSH to execute commands
+then wait for the command to execute, you can enable that feature by
+adding the following to the NuttX configuration file::
+
+ CONFIG_SCHED_WAITPID=y
+
+This configuration option enables support for the standard ``waitpid()``
+RTOS interface. When that interface is enabled, NSH will use it to wait,
+sleeping until the built-in application executes to completion.
+
+Of course, even with ``CONFIG_SCHED_WAITPID=y`` defined, specific
+applications can still be forced to run asynchronously by adding the
+ampersand (&) after the NSH command.
diff --git a/content/docs/10.2.0/_sources/applications/nsh/commands.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/commands.rst.txt
new file mode 100644
index 0000000..a046388
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/nsh/commands.rst.txt
@@ -0,0 +1,1846 @@
+========
+Commands
+========
+
+.. _cmdtest:
+
+Evaluate Expression (test)
+**************************
+
+**Command Syntax:**
+
+.. code-block:: fish
+
+ [ <expression> ]
+ test <expression>
+
+**Synopsis**. These are two alternative forms of the same command.
+They support evaluation of a boolean expression which sets
+``$?``. This command is used most frequently as
+the conditional command following the ``if`` in the
+``if-then[-else]-fi``.
+
+**Expression Syntax:**
+
+::
+
+ expression = simple-expression | !expression | expression -o expression | expression -a expression
+
+ simple-expression = unary-expression | binary-expression
+
+ unary-expression = string-unary | file-unary
+
+ string-unary = -n string | -z string
+
+ file-unary = -b file | -c file | -d file | -e file | -f file | -r file | -s file | -w file
+
+ binary-expression = string-binary | numeric-binary
+
+ string-binary = string = string | string == string | string != string
+
+ numeric-binary = integer -eq integer | integer -ge integer | integer -gt integer | integer -le integer | integer -lt integer | integer -ne integer
+
+.. _cmdaddroute:
+
+Add a Routing Table Entry (addroute)
+************************************
+
+**Command Syntax:**
+
+::
+
+ addroute <target> [<netmask>] <router>
+ addroute default <ipaddr> <interface>
+
+**Synopsis**. This command adds an entry in the routing table. The
+new entry will map the IP address of a router on a local network
+(<router>) to an external network characterized by the <target> IP
+address and a network mask <netmask>
+
+The netmask may also be expressed using IPv4 CIDR or IPv6 slash
+notation. In that case, the netmask need not be provided.
+
+**Example:**
+
+::
+
+ nsh> addroute addroute 11.0.0.0 255.255.255.0 10.0.0.2
+
+which is equivalent to
+
+::
+
+ nsh> addroute 11.0.0.0/24 10.0.0.2
+
+The second form of the addroute command can be used to set the
+default gateway.
+
+.. _cmdarp:
+
+Access the ARP table (arp)
+**************************
+
+**Command syntax**::
+
+ arp [-t|-a <ipaddr> |-d <ipaddr> |-s <ipaddr> <hwaddr>]
+
+**Synopsis**: Access the OS ARP table.
+
+ -a <ipaddr> Will show the hardware address that the IP address <ipaddr> is
+ mapped to.
+ -d <ipaddr> Will delete the mapping for the IP address <ipaddr> from the
+ ARP table.
+ -s <ipaddr hwaddr> Will set (or replace) the mapping of the IP address <ipaddr> to
+ the hardware address <hwaddr>.
+ -t Will dump the entire content of the ARP table. This option is
+ only available if ``CONFIG_NETLINK_ROUTE`` is enabled.
+
+**Example**::
+
+ nsh> arp -a 10.0.0.1
+ nsh: arp: no such ARP entry: 10.0.0.1
+
+ nsh> arp -s 10.0.0.1 00:13:3b:12:73:e6
+ nsh> arp -a 10.0.0.1
+ HWAddr: 00:13:3b:12:73:e6
+
+ nsh> arp -d 10.0.0.1
+ nsh> arp -a 10.0.0.1
+ nsh: arp: no such ARP entry: 10.0.0.1
+
+.. _cmdbase64dec:
+
+Base64 Decode (base64dec)
+*************************
+
+**Command Syntax**::
+
+ base64dec [-w] [-f] <string or filepath>
+
+**Synopsis**. *To be provided.*
+
+.. _cmdbase64enc:
+
+Base64 Encode (base64enc)
+*************************
+
+**Command Syntax**::
+
+ base64enc [-w] [-f] <string or filepath>
+
+**Synopsis**. *To be provided.*
+
+.. _cmdbasename:
+
+Extract Base File/Directory Name (basename)
+*******************************************
+
+**Command Syntax**::
+
+ basename <path> [<suffix>]
+
+**Synopsis**. Extract the final string from a ``<path>`` by
+removing the preceding path segments and (optionally) removing any
+trailing ``<suffix>``.
+
+.. _cmdbreak:
+
+Terminate a Loop (break)
+************************
+
+**Command Syntax**::
+
+ break
+
+**Synopsis**. The ``break`` command is only meaningful within the
+body of the a ``while`` or ``until`` loop,
+between the ``do`` and ``done`` tokens. Outside of a loop,
+``break`` command does nothing. If the ``break`` command is
+executed within the body of a loop, the loop will immediately
+terminate and execution will continue with the next command
+immediately following the ``done`` token.
+
+.. _cmdcat:
+
+Concatenate Files (cat)
+***********************
+
+**Command Syntax**::
+
+ cat <path> [<path> [<path> ...]]
+
+**Synopsis**. This command copies and concatenates all of the
+files at ``<path>`` to the console (or to another file if the
+output is redirected).
+
+.. _cmdcd:
+
+Change Current Working Directory (cd)
+*************************************
+
+**Command Syntax**::
+
+ cd [<dir-path>|-|~|..]
+
+**Synopsis**. Changes the current working directory (``PWD``).
+Also sets the previous working directory environment variable
+(``OLDPWD``).
+
+**Forms:**
+
+================== =====================================
+``cd <dir-path>`` sets the current working directory to <dir-path>.
+``cd -`` sets the current working directory to the previous
+ working directory ($OLDPWD). Equivalent to cd $OLDPWD.
+``cd`` or ``cd ~`` set the current working directory to the 'home' directory.
+ The home directory can be configured by setting CONFIG_LIBC_HOMEDIR
+ in the configuration file. The default home directory is /.
+``cd ..`` sets the current working directory to the parent directory.
+================== =====================================
+
+.. _cmdcmp:
+
+Compare Files (cmp)
+*******************
+
+**Command Syntax**::
+
+ cmp <path1> <path2>
+
+**Synopsis**. Compare of the contents of the file at ``<path1>``
+with the contents of the file at ``<path2>``. Returns an
+indication only if the files differ.
+
+.. _cmdcp:
+
+Copy Files (cp)
+***************
+
+**Command Syntax**::
+
+ cp <source-path> <dest-path>
+
+**Synopsis**. Copy of the contents of the file at
+``<source-path>`` to the location in the file system indicated by
+``<dest-path>``.
+
+.. _cmddate:
+
+Show or set the date and time (date)
+************************************
+
+**Command Syntax**::
+
+ date [-s "MMM DD HH:MM:SS YYYY"]
+
+**Synopsis**. Show or set the current date and time.
+
+Only one format is used both on display and when setting the
+date/time: ``MMM DD HH:MM:SS YYYY``. For example,
+
+24-hour time is used.
+
+.. _cmddd:
+
+Copy and Convert Files (dd)
+***************************
+
+**Command Syntax**::
+
+ dd if=<infile> of=<outfile> [bs=<sectsize>] [count=<sectors>] [skip=<sectors>]
+
+**Synopsis**. Copy blocks from <infile> to <outfile>. <infile> or
+<outfile> may be the path to a standard file, a character device,
+or a block device. Examples follow:
+
+Read from character device, write to regular file. This will
+create a new file of the specified size filled with zero::
+
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 zero
+ nsh> dd if=/dev/zero of=/tmp/zeros bs=64 count=16
+ nsh> ls -l /tmp
+ /tmp:
+ -rw-rw-rw- 1024 ZEROS
+
+Read from character device, write to block device. This will fill
+the entire block device with zeros::
+
+ nsh> ls -l /dev
+ /dev:
+ brw-rw-rw- 0 ram0
+ crw-rw-rw- 0 zero
+ nsh> dd if=/dev/zero of=/dev/ram0
+
+Read from a block device, write to a character device. This will
+read the entire block device and dump the contents in the bit
+bucket::
+
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ nsh> dd if=/dev/ram0 of=/dev/null
+
+.. _cmddelroute:
+
+Delete a Routing Table Entry (delroute)
+***************************************
+
+**Command Syntax**::
+
+ delroute <target> [<netmask>]
+
+**Synopsis**. The entry removed will be the first entry in the
+routing table that matches the external network characterized by
+the <target> IP address and the network mask <netmask>
+
+The netmask may also be expressed using IPv4 CIDR or IPv6 slash
+notation. In that case, the netmask need not be provided.
+
+**Example**::
+
+ nsh> delroute 11.0.0.0 255.255.255.0
+
+which is equivalent to::
+
+ nsh> delroute 11.0.0.0/24
+
+.. _cmddf:
+
+Show Volume Status (df)
+***********************
+
+**Command Syntax**::
+
+ df [-h]
+
+**Synopsis**. Show the state of each mounted volume. As an
+example::
+
+ nsh> mount
+ /etc type romfs
+ /tmp type vfat
+ nsh> df
+ Block Number
+ Size Blocks Used Available Mounted on
+ 64 6 6 0 /etc
+ 512 985 2 983 /tmp
+ nsh>
+
+If ``CONFIG_NSH_CMDOPT_DF_H`` is defined in the NuttX
+configuration, then the ``df`` will also support an option ``-h``
+which may be used to show the volume information in *human
+readable* format.
+
+.. _cmddirname:
+
+Extract Path to a File/Directory (dirname)
+******************************************
+
+**Command Syntax**::
+
+ dirname <path>
+
+**Synopsis**. Extract the path string leading up to the full
+``<path>`` by removing the final directory or file name.
+
+.. _cmddmesg:
+
+Dump Buffered SYSLOG Output (dmesg)
+***********************************
+
+**Command Syntax**::
+
+ dmesg
+
+**Synopsis**. This command can be used to dump (and clear) the
+content of any buffered syslog output messages. This command is
+only available if ``CONFIG_RAMLOG_SYSLOG`` is enabled. In that
+case, syslog output will be collected in an in-memory, circular
+buffer. Entering the ``dmesg`` command will dump the content of
+that in-memory, circular buffer to the NSH console output.
+``dmesg`` has the side effect of clearing the buffered data so
+that entering ``dmesg`` again will show only newly buffered data.
+
+.. _cmdecho:
+
+Echo Strings and Variables (echo)
+*********************************
+
+**Command Syntax**::
+
+ echo [-n] [<string|$name> [<string|$name>...]]
+
+**Synopsis**. Copy the sequence of strings and expanded
+environment variables to console output (or to a file if the
+output is re-directed).
+
+The ``-n`` option suppresses the trailing newline character.
+
+.. _cmdenv:
+
+Show Environment Variables (env)
+********************************
+
+**Command Syntax**::
+
+ env
+
+**Synopsis**. Show the current name-value pairs in the
+environment. Example::
+
+ nsh> env
+ PATH=/bin
+
+ nsh> set foo bar
+ nsh> env
+ PATH=/bin
+ foo=bar
+
+ nsh> unset PATH
+ nsh> env
+ foo=bar
+
+ nsh>
+
+.. note::NSH local variables are *not* shown by the ``env``
+ command.
+
+.. _cmdexec:
+
+Execute User Code (exec)
+************************
+
+**Command Syntax**::
+
+ exec <hex-address>
+
+**Synopsis**. Execute the user logic at address ``<hex-address>``.
+NSH will pause until the execution unless the user logic is
+executed in background via ``exec <hex-address> &``.
+
+.. _cmdexit:
+
+Exit NSH (exit)
+***************
+
+**Command Syntax**::
+
+ exit
+
+**Synopsis**. Exit NSH. Only useful for the serial front end if
+you have started some other tasks (perhaps using the ``exec``
+command) and you would like to have NSH out of the way. For the
+telnet front-end, ``exit`` terminates the telnet session.
+
+.. _cmdexport:
+
+Set an Environment Variable (export)
+************************************
+
+**Command Syntax**::
+
+ export <name> [<value>]
+
+**Synopsis**. The ``export`` command sets an environment variable,
+or promotes an NSH variable to an environment variable. As
+examples:
+
+ #. Using ``export`` to promote an NSH variable to an environment
+ variable::
+
+ nsh> env
+ PATH=/bin
+
+ nsh> set foo bar
+ nsh> env
+ PATH=/bin
+
+ nsh> export foo
+ nsh> env
+ PATH=/bin
+ foo=bar
+
+ A group-wide environment variable is created with the same
+ value as the local NSH variable; the local NSH variable is
+ removed.
+
+ .. note::This behavior differs from the Bash shell. Bash would
+ retain the local Bash variable which will shadow the
+ environment variable of the same name and same value.
+
+ #. Using ``export`` to set an environment variable::
+
+ nsh> export dog poop
+ nsh> env
+ PATH=/bin
+ foo=bar
+ dog=poop
+
+The ``export`` command is not supported by NSH unless both
+``CONFIG_NSH_VARS=y`` and ``CONFIG_DISABLE_ENVIRON``\ is not set.
+
+.. _cmdfree:
+
+Show Memory Manager Status (free)
+*********************************
+
+**Command Syntax**::
+
+ free
+
+**Synopsis**. Show the current state of the memory allocator. For
+example::
+
+ nsh> free
+ total used free largest nused nfree
+ Mem: 5583024 1614784 3968240 3967792 244 4
+
+ nsh>
+
+**Where:**
+
+======= ======================================
+total This is the total size of memory allocated for use by malloc in bytes.
+used This is the total size of memory occupied by chunks handed out by malloc.
+free This is the total size of memory occupied by free (not in use) chunks.
+largest Size of the largest free (not in use) chunk.
+nused This is the number of allocated chunks
+nfree This is the number of free chunks
+======= ======================================
+
+.. _cmdget:
+
+Get File Via TFTP (get)
+***********************
+
+**Command Syntax**::
+
+ get [-b|-n] [-f <local-path>] -h <ip-address> <remote-path>
+
+**Synopsis**. Copy the file at ``<remote-address>`` from the host
+whose IP address is identified by ``<ip-address>``.
+
+**Other options**
+
+=================== ============================================
+``-f <local-path>`` The file will be saved relative to the current working directory unless <local-path> is provided.
+``-n`` Selects text ("netascii") transfer mode (default).
+``-b`` Selects binary ("octet") transfer mode
+=================== ============================================
+
+.. _cmdhelp:
+
+Show Usage Command Usage (help)
+*******************************
+
+**Command Syntax**::
+
+ help [-v] [<cmd>]
+
+**Synopsis**. Presents summary information about NSH commands to
+console.
+
+**Options**
+
+========= ====================
+``-v`` how verbose output will full command usage.
+``<cmd>`` Show full command usage only for this command.
+========= ====================
+
+.. _cmdhexdump:
+
+Hexadecimal Dump of File or Device (hexdump)
+********************************************
+
+**Command Syntax**::
+
+ hexdump <file or device> [skip=<bytes>] [count=<bytes>]
+
+**Synopsis**. Dump data in hexadecimal format from a file or
+character device
+
+================= ==================================
+``skip=<bytes>`` Will skip <bytes> number of bytes from the beginning.
+``count=<bytes>`` Will stop after dumping <bytes> number of bytes.
+================= ==================================
+
+The ``skip`` and ``count`` options are only available if
+``CONFIG_NSH_CMDOPT_HEXDUMP`` is defined in the NuttX
+configuration.
+
+.. _cmdifconfig:
+
+Manage Network Configuration (ifconfig)
+***************************************
+
+**Command Syntax**::
+
+ ifconfig [nic_name [<ip-address>|dhcp]] [dr|gw|gateway <dr-address>] [netmask <net-mask>] [dns <dns-address>] [hw <hw-mac>]]
+
+**Synopsis**. Multiple forms of the ``ifconfig`` command are
+supported:
+
+ #. With one or no arguments, ``ifconfig`` will shows the current
+ configuration of the network and, perhaps, the status of
+ Ethernet device::
+
+ ifconfig
+ ifconfig [nic_name]
+
+ As an example::
+
+ nsh> ifconfig
+ eth0 HWaddr 00:18:11:80:10:06
+ IPaddr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0
+
+ If network statistics are enabled (``CONFIG_NET_STATISTICS``),
+ then this command will also show the detailed state of network.
+
+ #. If both the network interface name and an IP address are
+ supplied as arguments, then ``ifconfig`` will set the address
+ of the Ethernet device::
+
+ ifconfig nic_name ip_address
+
+ #. Other forms *to be provided*
+
+.. note:: This commands depends upon having the *procfs* file system
+ configured into the system. The *procfs* file system must also
+ have been mounted with a command like::
+
+ nsh> mount -t procfs /proc
+
+.. _cmdifdown:
+
+Take a network down (ifdown)
+****************************
+
+**Command Syntax**::
+
+ ifdown <interface>
+
+**Synopsis**. Take down the interface identified by the name
+<interface>.
+
+**Example**::
+
+ ifdown eth0
+
+.. _cmdifup:
+
+Bring a network up (ifup)
+*************************
+
+**Command Syntax**::
+
+ ifup <interface>
+
+**Synopsis**. Bring up down the interface identified by the name
+<interface>.
+
+**Example**::
+
+ ifup eth0
+
+.. _cmdinsmod:
+
+Install an OS module (insmod)
+*****************************
+
+**Command Syntax**::
+
+ insmod <file-path> <module-name>
+
+**Synopsis**. Install the loadable OS module at <file-path> as
+module <module-name>.
+
+**Example**::
+
+ nsh> ls -l /mnt/romfs
+ /mnt/romfs:
+ dr-xr-xr-x 0 .
+ -r-xr-xr-x 9153 chardev
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 console
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ crw-rw-rw- 0 ttyS0
+ nsh> lsmod
+ NAME INIT UNINIT ARG TEXT SIZE DATA SIZE
+ nsh> insmod /mnt/romfs/chardev mydriver
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 chardev
+ crw-rw-rw- 0 console
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ crw-rw-rw- 0 ttyS0
+ nsh> lsmod
+ NAME INIT UNINIT ARG TEXT SIZE DATA SIZE
+ mydriver 20404659 20404625 0 20404580 552 204047a8 0
+
+.. _cmdirqinfo:
+
+Show Interrupt Status (irqinfo)
+*******************************
+
+**Command Syntax**::
+
+ irqinfo
+
+**Synopsis**. Show the current count of interrupts taken on all
+attached interrupts.
+
+**Example**::
+
+ nsh> irqinfo
+ IRQ HANDLER ARGUMENT COUNT RATE
+ 3 00001b3d 00000000 156 19.122
+ 15 0000800d 00000000 817 100.000
+ 30 00000fd5 20000018 20 2.490
+
+.. _cmdkill:
+
+Send a signal to a task (kill)
+******************************
+
+**Command Syntax**::
+
+ kill -<signal> <pid>
+
+**Synopsis**. Send the <signal> to the task identified by <pid>.
+
+**Example**::
+
+ nsh> mkfifo /dev/fifo
+ nsh> cat /dev/fifo &
+ cat [2:128]
+ nsh> ps
+ PID PRI POLICY TYPE NPX STATE EVENT SIGMASK COMMAND
+ 0 0 FIFO Kthread --- Ready 00000000 Idle Task
+ 1 128 RR Task --- Running 00000000 init
+ 2 128 FIFO pthread --- Waiting Semaphore 00000000 <pthread>(51ea50)
+ nsh> kill -9 2
+ nsh> ps
+ PID PRI POLICY TYPE NPX STATE EVENT SIGMASK COMMAND
+ 0 0 FIFO Kthread --- Ready 00000000 Idle Task
+ 1 128 RR Task --- Running 00000000 init
+ nsh>
+
+.. note:: NuttX does not support a FULL POSIX signaling system. A
+ few standard signal names like ``SIGCHLD``, ``SIGUSR1``,
+ ``SIGUSR2``, ``SIGALRM``, and ``SIGPOLL`` exist in the system.
+ However, they do not have the default actions that you might
+ expect. Rather, NuttX supports only what are referred to as POSIX
+ real-time signals. These signals may be used to communicate with
+ running tasks, may be use to waiting waiting tasks, etc.
+
+ If the configuration option ``CONFIG_SIG_DEFAULT`` is enabled,
+ then default actions for the ``SIGINT`` and ``SIGKILL`` signals
+ (only) will be supported. In that case, as an example, ``kill -9``
+ (SIGKILL) will, indeed, terminate a task. Caution should be
+ exercised, however, because this is likely to cause memory leaks
+ and to strand resource since there is insufficient clean-up in
+ certain build configurations.
+
+.. _cmdlosetup:
+
+Setup/teardown the Loop Device (losetup)
+****************************************
+
+**Command Syntax 1**::
+
+ losetup [-o <offset>] [-r] <dev-path> <file-path>
+
+**Synopsis**. Setup the loop device at <dev-path> to access the
+file at <file-path> as a block device. In the following example a
+256K file is created (``dd``) and ``losetup`` is used to make the
+file accessible as a block device. A FAT file system is created
+(``mkfatfs``) and mounted (``mount``). Files can then be managed
+on the loop-mounted file::
+
+ nsh> dd if=/dev/zero of=/tmp/image bs=512 count=512
+ nsh> ls -l /tmp
+ /tmp:
+ -rw-rw-rw- 262144 IMAGE
+ nsh> losetup /dev/loop0 /tmp/image
+ nsh> ls -l /dev
+ /dev:
+ brw-rw-rw- 0 loop0
+ nsh> mkfatfs /dev/loop0
+ nsh> mount -t vfat /dev/loop0 /mnt/example
+ nsh> ls -l /mnt
+ ls -l /mnt
+ /mnt:
+ drw-rw-rw- 0 example/
+ nsh> echo "This is a test" >/mnt/example/atest.txt
+ nsh> ls -l /mnt/example
+ /mnt/example:
+ -rw-rw-rw- 16 ATEST.TXT
+ nsh> cat /mnt/example/atest.txt
+ This is a test
+ nsh>
+
+**Command Syntax 2**::
+
+ losetup d <dev-path>
+
+**Synopsis**. Teardown the setup for the loop device at
+<dev-path>.
+
+.. _cmdln:
+
+Link to a File or Directory (ln)
+********************************
+
+**Command Syntax**::
+
+ ln [-s] <target> <link>
+
+**Synopsis**. The ``ln`` command will create a new symbolic link
+at <link> for the existing file or directory, <target>. This
+implementation is simplified for use with NuttX in these ways:
+
+ - Links may be created only within the NuttX top-level,
+ :ref:`pseudo file system <file_system_overview>` No
+ file system currently supported by NuttX provides symbolic
+ links.
+ - For the same reason, only soft links are implemented.
+ - File privileges are ignored.
+ - ``c_time`` is not updated.
+
+.. _cmdls:
+
+List Directory Contents (ls)
+****************************
+
+**Command Syntax**::
+
+ ls [-lRs] <dir-path>
+
+**Synopsis**. Show the contents of the directory at
+``<dir-path>``. NOTE: ``<dir-path>`` must refer to a directory and
+no other file system object.
+
+**Options**
+
+====== ================================
+``-R`` Show the contents of specified directory and all of its sub-directories.
+``-s`` Show the size of the files along with the filenames in the listing
+``-l`` Show size and mode information along with the filenames in the listing.
+====== ================================
+
+.. _cmdlsmod:
+
+Show information about installed OS modules (lsmod)
+***************************************************
+
+**Command Syntax**::
+
+ lsmod
+
+**Synopsis**. Show information about the currently installed OS
+modules. This information includes:
+
+ - The module name assigned to the module when it was installed
+ (``NAME``, string).
+ - The address of the module initialization function (``INIT``,
+ hexadecimal).
+ - The address of the module un-initialization function
+ (``UNINIT``, hexadecimal).
+ - An argument that will be passed to the module un-initialization
+ function (``ARG``, hexadecimal).
+ - The start of the .text memory region (``TEXT``, hexadecimal).
+ - The size of the .text memory region size (``SIZE``, decimal).
+ - The start of the .bss/.data memory region (``DATA``,
+ hexadecimal).
+ - The size of the .bss/.data memory region size (``SIZE``,
+ decimal).
+
+**Example**::
+
+ nsh> lsmod
+ NAME INIT UNINIT ARG TEXT SIZE DATA SIZE
+ mydriver 20404659 20404625 0 20404580 552 204047a8 0
+
+.. _cmdmd5:
+
+Calculate MD5 (md5)
+*******************
+
+**Command Syntax**::
+
+ md5 [-f] <string or filepath>
+
+**Synopsis**. *To be provided.*
+
+.. _cmdmx:
+
+Access Memory (mb, mh, and mw)
+******************************
+
+**Command Syntax**::
+
+ mb <hex-address>[=<hex-value>][ <hex-byte-count>]
+ mh <hex-address>[=<hex-value>][ <hex-byte-count>]
+ mw <hex-address>[=<hex-value>][ <hex-byte-count>]
+
+**Synopsis**. Access memory using byte size access (mb), 16-bit
+accesses (mh), or 32-bit access (mw). In each case,
+
+============================= ==============================================
+``<hex-address>`` Specifies the address to be accessed. The current
+ value at that address will always be read and displayed.
+``<hex-address>=<hex-value>`` Read the value, then write <hex-value> to the location.
+``<hex-byte-count>`` Perform the mb, mh, or mw operation on a total of
+ <hex-byte-count> bytes, increment the <hex-address>
+ appropriately after each access.
+============================= ==============================================
+
+**Example**::
+
+ nsh> mh 0 16
+ 0 = 0x0c1e
+ 2 = 0x0100
+ 4 = 0x0c1e
+ 6 = 0x0110
+ 8 = 0x0c1e
+ a = 0x0120
+ c = 0x0c1e
+ e = 0x0130
+ 10 = 0x0c1e
+ 12 = 0x0140
+ 14 = 0x0c1e
+ nsh>
+
+.. _cmdps:
+
+Show Current Tasks and Threads (ps)
+***********************************
+
+**Command Syntax**::
+
+ ps
+
+**Synopsis**. Show the currently active threads and tasks. For
+example::
+
+ nsh> ps
+ PID PRI POLICY TYPE NPX STATE EVENT SIGMASK COMMAND
+ 0 0 FIFO Kthread --- Ready 00000000 Idle Task
+ 1 128 RR Task --- Running 00000000 init
+ 2 128 FIFO Task --- Waiting Semaphore 00000000 nsh_telnetmain()
+ 3 100 RR pthread --- Waiting Semaphore 00000000 <pthread>(21)
+ nsh>
+
+NOTE: This commands depends upon having the *procfs* file system
+configured into the system. The *procfs* file system must also
+have been mounted with a command like::
+
+ nsh> mount -t procfs /proc
+
+.. _cmdmkdir:
+
+Create a Directory (mkdir)
+**************************
+
+**Command Syntax**::
+
+ mkdir <path>
+
+**Synopsis**. Create the directory at ``<path>``. All components
+of ``<path>`` except the final directory name must exist on a
+mounted file system; the final directory must not.
+
+**Limited to Mounted File Systems**. Recall that NuttX uses a
+:ref:`pseudo file system <file_system_overview>`
+for its root file system. The ``mkdir`` command can only be used
+to create directories in volumes set up with the
+:ref:`mount <cmdmount>` command; it cannot be used to create
+directories in the *pseudo* file system.
+
+**Example**::
+
+ nsh> mkdir /mnt/fs/tmp
+ nsh> ls -l /mnt/fs
+ /mnt/fs:
+ drw-rw-rw- 0 TESTDIR/
+ drw-rw-rw- 0 TMP/
+ nsh>
+
+.. _cmdmkfatfs:
+
+Create a FAT File System (mkfatfs)
+**********************************
+
+**Command Syntax**
+
+ mkfatfs [-F <fatsize>] [-r <rootdirentries>] <block-driver>
+
+**Synopsis**. Format a fat file system on the block device
+specified by ``<block-driver>`` path. The FAT size may be provided
+as an option. Without the ``<fatsize>`` option, ``mkfatfs`` will
+select either the FAT12 or FAT16 format. For historical reasons,
+if you want the FAT32 format, it must be explicitly specified on
+the command line.
+
+The ``-r`` option may be specified to select the the number of
+entries in the root directory for FAT12 and FAT16 file systems.
+Typical values for small volumes would be 112 or 224; 512 should
+be used for large volumes, such as hard disks or very large SD
+cards. The default is 512 entries in all cases.
+
+The reported number of root directory entries used with FAT32 is
+zero because the FAT32 root directory is a cluster chain.
+
+NSH provides this command to access the
+``mkfatfs()`` NuttX API. This block device must
+reside in the NuttX :ref:`pseudo file system <file_system_overview>`
+and must have been created by some call to ``register_blockdriver()``
+(see ``include/nuttx/fs/fs.h``).
+
+.. _cmdmkfifo:
+
+Create a FIFO (mkfifo)
+**********************
+
+**Command Syntax**::
+
+ mkfifo <path>
+
+**Synopsis**. Creates a FIFO character device anywhere in the
+pseudo file system, creating whatever pseudo directories that may
+be needed to complete the ``<path>``. By convention, however,
+device drivers are place in the standard ``/dev`` directory. After
+it is created, the FIFO device may be used as any other device
+driver. NSH provides this command to access the
+```mkfifo()`` NuttX API.
+
+**Example**::
+
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 console
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ nsh> mkfifo /dev/fifo
+ nsh> ls -l /dev
+ ls -l /dev
+ /dev:
+ crw-rw-rw- 0 console
+ crw-rw-rw- 0 fifo
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ nsh>
+
+.. _cmdmkrd:
+
+Create a RAMDISK (mkrd)
+***********************
+
+**Command Syntax**::
+
+ mkrd [-m <minor>] [-s <sector-size>] <nsectors>
+
+**Synopsis**. Create a ramdisk consisting of ``<nsectors>``, each
+of size ``<sector-size>`` (or 512 bytes if ``<sector-size>`` is
+not specified. The ramdisk will be registered as
+``/dev/ram<minor>``. If ``<minor>`` is not specified, ``mkrd``
+will attempt to register the ramdisk as ``/dev/ram0``.
+
+**Example**::
+
+ nsh> ls /dev
+ /dev:
+ console
+ null
+ ttyS0
+ ttyS1
+ nsh> mkrd 1024
+ nsh> ls /dev
+ /dev:
+ console
+ null
+ ram0
+ ttyS0
+ ttyS1
+ nsh>
+
+Once the ramdisk has been created, it may be formatted using the
+``mkfatfs`` command and mounted using the ``mount`` command.
+
+**Example**::
+
+ nsh> mkrd 1024
+ nsh> mkfatfs /dev/ram0
+ nsh> mount -t vfat /dev/ram0 /tmp
+ nsh> ls /tmp
+ /tmp:
+ nsh>
+
+.. _cmdmount:
+
+Mount a File System (mount)
+***************************
+
+**Command Syntax**::
+
+ mount -t <fstype> [-o <options>] <block-device> <dir-path>
+
+**Synopsis**. The ``mount`` command performs one of two different
+operations. If no parameters are provided on the command line
+after the ``mount`` command, then the ``mount`` command will
+enumerate all of the current mountpoints on the console.
+
+If the mount parameters are provided on the command after the
+``mount`` command, then the ``mount`` command will mount a file
+system in the NuttX pseudo-file system. ``mount`` performs a three
+way association, binding:
+
+ #. **File System.** The '-t ``<fstype>``' option identifies the
+ type of file system that has been formatted on the
+ ``<block-device>``. As of this writing, ``vfat`` is the only
+ supported value for ``<fstype>``
+ #. **Block Device.** The ``<block-device>`` argument is the full
+ or relative path to a block driver inode in the
+ :ref:`pseudo file system <file_system_overview>`. By
+ convention, this is a name under the ``/dev`` sub-directory.
+ This ``<block-device>`` must have been previously formatted
+ with the same file system type as specified by ``<fstype>``
+ #. **Mount Point.** The mount point, ``<dir-path>``, is the
+ location in the :ref:`pseudo file system <file_system_overview>`
+ where the mounted volume will appear. This mount point can only
+ reside in the NuttX
+ :ref:`pseudo file system <file_system_overview>`. By
+ convention, this mount point is a subdirectory under ``/mnt``.
+ The mount command will create whatever pseudo directories that
+ may be needed to complete the full path but the full path must
+ not already exist.
+
+After the volume has been mounted in the NuttX
+:ref:`pseudo file system <file_system_overview>`, it may be
+access in the same way as other objects in the file system.
+
+**Examples**:
+
+Using ``mount`` to mount a file system::
+
+ nsh> ls -l /dev
+ /dev:
+ crw-rw-rw- 0 console
+ crw-rw-rw- 0 null
+ brw-rw-rw- 0 ram0
+ nsh> ls /mnt
+ nsh: ls: no such directory: /mnt
+ nsh> mount -t vfat /dev/ram0 /mnt/fs
+ nsh> ls -l /mnt/fs/testdir
+ /mnt/fs/testdir:
+ -rw-rw-rw- 15 TESTFILE.TXT
+ nsh> echo "This is a test" >/mnt/fs/testdir/example.txt
+ nsh> ls -l /mnt/fs/testdir
+ /mnt/fs/testdir:
+ -rw-rw-rw- 15 TESTFILE.TXT
+ -rw-rw-rw- 16 EXAMPLE.TXT
+ nsh> cat /mnt/fs/testdir/example.txt
+ This is a test
+ nsh>
+
+Using ``mount`` to enumerate mounts::
+
+ nsh> mount
+ /etc type romfs
+ /mnt/fs type vfat
+ /tmp type vfat
+
+.. _cmdmv:
+
+Rename a File (mv)
+******************
+
+**Command Syntax**::
+
+ mv <old-path> <new-path>
+
+**Synopsis**. Rename the file object at ``<old-path>`` to
+``<new-path>``. Both paths must reside in the same mounted file
+system.
+
+.. _cmdnfsmount:
+
+Mount an NFS file system (nfsmount)
+***********************************
+
+**Command Syntax**::
+
+ nfsmount <server-address> <mount-point> <remote-path>
+
+**Synopsis**. Mount the remote NFS server directory<remote-path>
+at <mount-point> on the target machine. <server-address> is the IP
+address of the remote server.
+
+.. _cmdnslookup:
+
+Lookup a network address (nslookup)
+***********************************
+
+**Command Syntax**::
+
+ nslookup <host-name>
+
+**Synopsis**. Lookup and print the IP address associated with
+``<host-name>``.
+
+.. _cmdpasswd:
+
+Change a User's Password (passwd)
+*********************************
+
+**Command Syntax**::
+
+ passwd <username> <password>
+
+**Synopsis**. Set the password for the existing user <username> to
+<password>.
+
+.. _cmdpmconfig:
+
+Manage Power Management Subsystem (pmconfig)
+********************************************
+
+**Command Syntax**::
+
+ pmconfig [stay|relax] [normal|idle|standby|sleep]
+
+**Synopsis**. Control power management subsystem.
+
+.. _cmdpoweroff:
+
+Shut the system down (poweroff)
+*******************************
+
+**Command Syntax**::
+
+ poweroff [<n>]
+
+**Synopsis**. Shutdown and power off the system immediately. This
+command depends on board-specific hardware support to power down
+the system. The optional,decimal numeric argument may be included
+to provide power off mode to board-specific power off logic.
+
+NOTE: Supporting both the ``poweroff`` and ``shutdown`` commands
+is redundant.
+
+.. _cmdput:
+
+Send File Via TFTP (put)
+************************
+
+**Command Syntax**::
+
+ put [-b|-n] [-f <remote-path>] -h <ip-address> <local-path>
+
+**Synopsis**. Copy the file at ``<local-address>`` to the host
+whose IP address is identified by ``<ip-address>``.
+
+**Other options:**
+
+==================== =============================================
+``-f <remote-path>`` The file will be saved relative with the same
+ name on the host unless <remote-path> is provided.
+``-b|-n`` Selects either binary ("octet") or text ("netascii")
+ transfer mode. Default: text.
+==================== =============================================
+
+.. _cmdpwd:
+
+Show Current Working Directory (pwd)
+************************************
+
+**Command Syntax**::
+
+ pwd
+
+**Synopsis**. Show the current working directory::
+
+ nsh> cd /dev
+ nsh> pwd
+ /dev
+ nsh>
+
+Same as ``echo $PWD``::
+
+ nsh> echo $PWD
+ /dev
+ nsh>
+
+.. _cmdreadlink:
+
+Show target of a link (readlink)
+********************************
+
+**Command Syntax**::
+
+ readlink <link>
+
+**Synopsis**. Show the target of the soft link at the path
+``<link>``.
+
+.. _cmdreboot:
+
+Reboot the system (reboot)
+**************************
+
+**Command Syntax**::
+
+ reboot [<n>]
+
+**Synopsis**. Reset and reboot the system immediately. This
+command depends on hardware support to reset the system. The
+optional, decimal numeric argument <n> may be included to provide
+a reboot mode to board-specific reboot logic.
+
+NOTE: Supporting both the ``reboot`` and ``shutdown`` commands is
+redundant.
+
+.. _cmdrm:
+
+Remove a File (rm)
+******************
+
+**Command Syntax**::
+
+ rm <file-path>
+
+**Synopsis**. Remove the specified ``<file-path>`` name from the
+mounted file system. Recall that NuttX uses a
+:ref:`pseudo file system <file_system_overview>` for its root
+file system. The ``rm`` command can only be used to remove
+(unlink) files in volumes set up with the
+:ref:`mount <cmdmount>` command; it cannot be used to remove
+names in the *pseudo* file system.
+
+**Example**::
+
+ nsh> ls /mnt/fs/testdir
+ /mnt/fs/testdir:
+ TESTFILE.TXT
+ EXAMPLE.TXT
+ nsh> rm /mnt/fs/testdir/example.txt
+ nsh> ls /mnt/fs/testdir
+ /mnt/fs/testdir:
+ TESTFILE.TXT
+ nsh>
+
+.. _cmdrmdir:
+
+Remove a Directory (rmdir)
+**************************
+
+**Command Syntax**::
+
+ rmdir <dir-path>
+
+**Synopsis**. Remove the specified ``<dir-path>`` directory from
+the mounted file system. Recall that NuttX uses a
+:ref:`pseudo file system <file_system_overview>` for its root
+file system. The ``rmdir`` command can only be used to remove
+directories from volumes set up with the :ref:`mount <cmdmount>`
+command it cannot be used to remove directories from the *pseudo*
+file system.
+
+**Example**::
+
+ nsh> mkdir /mnt/fs/tmp
+ nsh> ls -l /mnt/fs
+ /mnt/fs:
+ drw-rw-rw- 0 TESTDIR/
+ drw-rw-rw- 0 TMP/
+ nsh> rmdir /mnt/fs/tmp
+ nsh> ls -l /mnt/fs
+ /mnt/fs:
+ drw-rw-rw- 0 TESTDIR/
+ nsh>
+
+.. _cmdrmmod:
+
+Remove on OS Module (rmmod)
+***************************
+
+**Command Syntax**::
+
+ rmmod <module-name>
+
+**Synopsis**. Remove the loadable OS module with the
+<module-name>. NOTE: An OS module can only be removed if it is not
+busy.
+
+**Example**::
+
+ nsh> lsmod
+ NAME INIT UNINIT ARG TEXT SIZE DATA SIZE
+ mydriver 20404659 20404625 0 20404580 552 204047a8 0
+ nsh> rmmod mydriver
+ nsh> lsmod
+ NAME INIT UNINIT ARG TEXT SIZE DATA SIZE
+ nsh>
+
+.. _cmdroute:
+
+Show routing table (route)
+**************************
+
+**Command Syntax**::
+
+ route ipv4|ipv6
+
+**Synopsis**. Show the contents of routing table for IPv4 or IPv6.
+
+If only IPv4 or IPv6 is enabled, then the argument is optional
+but, if provided, must match the enabled internet protocol
+version.
+
+.. _cmdrptun:
+
+Start/Stop the OpenAMP RPC Tunnel (rptun)
+*****************************************
+
+**Command Syntax**::
+
+ rptun start|stop <dev-path>
+
+**Synopsis**. Start or stop the OpenAMP RPC tunnel device at <dev-path>.
+
+.. _cmdset:
+
+Set a Variable (set)
+********************
+
+**Command Syntax**::
+
+ set [{+|-}{e|x|xe|ex}] [<name> <value>]
+
+**Synopsis**. Set the variable ``<name>`` to the string ``<value>`` and
+or set NSH parser control options.
+
+For example, a variable may be set like this::
+
+ nsh> echo $foobar
+
+ nsh> set foobar foovalue
+ nsh> echo $foobar
+ foovalue
+ nsh>
+
+If ``CONFIG_NSH_VARS`` is selected, the effect of this ``set`` command
+is to set the local NSH variable. Otherwise, the group-wide environment
+variable will be set.
+
+If the local NSH variable has already been *promoted* to an environment
+variable via the :ref:`export <cmdexport>`, then the ``set`` command
+will set the value of the environment variable rather than the local NSH
+variable.
+
+.. note:: The Bash shell does not work this way. Bash would set the value
+ of both the local Bash variable and the environment variable of the
+ same name to the same value.
+
+If ``CONFIG_NSH_VARS=y`` is selected and no arguments are provided, then
+the ``set`` command will list all of the local NSH variables::
+
+ nsh> set
+ foolbar=foovalue
+
+Set the *exit on error control* and/or *print a trace* of commands when
+parsing scripts in NSH. The settings are in effect from the point of
+execution, until they are changed again, or in the case of the
+initialization script, the settings are returned to the default settings
+when it exits. Included child scripts will run with the parents settings
+and changes made in the child script will effect the parent on return.
+
+ - Use ``set -e`` to enable and ``set +e`` to disable (ignore) the exit
+ condition on commands. The default is -e. Errors cause script to
+ exit.
+
+ - Use ``set -x`` to enable and ``set +x`` to disable (silence) printing
+ a trace of the script commands as they are executed. The default is
+ ``+x``: no printing of a trace of script commands as they are
+ executed.
+
+Example 1 - no exit on command not found::
+
+ set +e
+ notacommand
+
+Example 2 - will exit on command not found::
+
+ set -e
+ notacommand
+
+Example 3 - will exit on command not found, and print a trace of the
+script commands::
+
+ set -ex
+
+Example 4 - will exit on command not found, and print a trace of the
+script commands and set foobar to foovalue::
+
+ set -ex foobar foovalue
+ nsh> echo $foobar
+ foovalue
+
+.. _cmdsh:
+
+Execute an NSH Script (sh)
+**************************
+
+**Command Syntax**::
+
+ sh <script-path>
+
+**Synopsis**. Execute the sequence of NSH commands in the file referred
+to by ``<script-path>``.
+
+.. _cmdshutdown:
+
+Shut the system down (shutdown)
+*******************************
+
+**Command Syntax**::
+
+ shutdown [--reboot]
+
+**Synopsis**. Shutdown and power off the system or, optionally, reset
+and reboot the system immediately. This command depends on hardware
+support to power down or reset the system; one, both, or neither
+behavior may be supported.
+
+NOTE: The ``shutdown`` command duplicates the behavior of the
+``poweroff`` and ``eboot`` commands.
+
+.. _cmdsleep:
+
+Wait for Seconds (sleep)
+************************
+
+**Command Syntax**::
+
+ sleep <sec>
+
+**Synopsis**. Pause execution (sleep) for ``<sec>`` seconds.
+
+.. _cmdtelnetd:
+
+Time Start the Telnet Daemon (telnetd)
+**************************************
+
+**Command Syntax**::
+
+ telnetd
+
+**Synopsis**. Start the Telnet daemon if it is not already running.
+
+The Telnet daemon may be started either programmatically by calling
+``nsh_telnetstart()`` or it may be started from the NSH command line
+using this ``telnetd`` command.
+
+Normally this command would be suppressed with
+``CONFIG_NSH_DISABLE_TELNETD`` because the Telnet daemon is
+automatically started in ``nsh_main.c``. The exception is when
+``CONFIG_NSH_NETLOCAL`` is selected. In that case, the network is not
+enabled at initialization but rather must be enabled from the NSH
+command line or via other applications.
+
+In that case, when ``nsh_telnetstart()`` is called before the the
+network is initialized, it will fail.
+
+.. _cmdtime:
+
+Time execution of another command (time)
+****************************************
+
+**Command Syntax**::
+
+ time "<command>"
+
+**Synopsis**. Perform command timing. This command will execute the
+following <command> string and then show how much time was required to
+execute the command. Time is shown with a resolution of 100 microseconds
+which may be beyond the resolution of many configurations. Note that the
+<command> must be enclosed in quotation marks if it contains spaces or
+other delimiters.
+
+**Example**::
+
+ nsh> time "sleep 2"
+
+ 2.0100 sec
+ nsh>
+
+The additional 10 milliseconds in this example is due to the way that
+the sleep command works: It always waits one system clock tick longer
+than requested and this test setup used a 10 millisecond periodic system
+timer. Sources of error could include various quantization errors,
+competing CPU usage, and the additional overhead of the time command
+execution itself which is included in the total.
+
+The reported time is the elapsed time from starting of the command to
+completion of the command. This elapsed time may not necessarily be just
+the processing time for the command. It may included interrupt level
+processing, for example. In a busy system, command processing could be
+delayed if pre-empted by other, higher priority threads competing for
+CPU time. So the reported time includes all CPU processing from the
+start of the command to its finish possibly including unrelated
+processing time during that interval.
+
+Notice that::
+
+ nsh> time "sleep 2 &"
+ sleep [3:100]
+
+ 0.0000 sec
+ nsh>
+
+Since the sleep command is executed in background, the sleep command
+completes almost immediately. As opposed to the following where the time
+command is run in background with the sleep command::
+
+ nsh> time "sleep 2" &
+ time [3:100]
+ nsh>
+ 2.0100 sec
+
+.. _cmdtruncate:
+
+Set the Size of a File (truncate)
+*********************************
+
+**Command Syntax**::
+
+ truncate -s <length> <file-path>
+
+**Synopsis**. Shrink or extend the size of the regular file at
+<file-path> to the specified<length>.
+
+A <file-path> argument that does not exist is created. The <length>
+option is NOT optional.
+
+If a <file-path> is larger than the specified size, the extra data is
+lost. If a <file-path> is shorter, it is extended and the extended part
+reads as zero bytes.
+
+.. _cmdumount:
+
+Unmount a File System (umount)
+******************************
+
+**Command Syntax**::
+
+ umount <dir-path>
+
+**Synopsis**. Un-mount the file system at mount point ``<dir-path>``.
+The ``umount`` command can only be used to un-mount volumes previously
+mounted using :ref:`mount <cmdmount>` command.
+
+**Example**::
+
+ nsh> ls /mnt/fs
+ /mnt/fs:
+ TESTDIR/
+ nsh> umount /mnt/fs
+ nsh> ls /mnt/fs
+ /mnt/fs:
+ nsh: ls: no such directory: /mnt/fs
+ nsh>
+
+.. _cmduname:
+
+Print system information (uname)
+********************************
+
+**Command Syntax**::
+
+ uname [-a | -imnoprsv]
+
+**Synopsis**. Print certain system information. With no options, the
+output is the same as -s.
+
+========== ========================================
+``-a`` Print all information, in the following
+ order, except omit -p and -i if unknown:
+``-s, -o`` Print the operating system name (NuttX)
+``-n`` Print the network node hostname (only available if CONFIG_NET=y)
+``-r`` Print the kernel release
+``-v`` Print the kernel version
+``-m`` Print the machine hardware name
+``-i`` Print the machine platform name
+``-p`` Print "unknown"
+========== ========================================
+
+.. _cmdunset:
+
+Unset an Environment Variable (unset)
+*************************************
+
+**Command Syntax**:
+
+ unset <name>
+
+**Synopsis**. Remove the value associated with the variable ``<name>``.
+This will remove the name-value pair from both the NSH local variables
+and the group-wide environment variables. For example::
+
+ nsh> echo $foobar
+ foovalue
+ nsh> unset foobar
+ nsh> echo $foobar
+
+ nsh>
+
+.. _cmdurldecode:
+
+URL Decode (urldecode)
+**********************
+
+**Command Syntax**::
+
+ urldecode [-f] <string or filepath>
+
+**Synopsis**. *To be provided.*
+
+.. _cmdurlencode:
+
+URL Encode (urlencode)
+**********************
+
+**Command Syntax**::
+
+ urlencode [-f] <string or filepath>
+
+**Synopsis**. *To be provided.*
+
+.. _cmduseradd:
+
+Add a New User (useradd)
+************************
+
+**Command Syntax**::
+
+ useradd <username> <password>
+
+**Synopsis**. Add a new user with <username> and <password>.
+
+.. _cmduserdel:
+
+Delete a user (userdel)
+***********************
+
+**Command Syntax**::
+
+ userdel <username>
+
+**Synopsis**. Delete the user with the name <username>.
+
+.. _cmdusleep:
+
+Wait for Microseconds (usleep)
+******************************
+
+**Command Syntax**::
+
+ usleep <usec>
+
+**Synopsis**. Pause execution (sleep) of ``<usec>`` microseconds.
+
+.. _cmdwget:
+
+Get File Via HTTP (wget)
+************************
+
+**Command Syntax**
+
+ wget [-o <local-path>] <url>
+
+**Synopsis**. Use HTTP to copy the file at ``<url>`` to the current
+directory.
+
+**Options**
+
+=================== =================================================
+``-o <local-path>`` The file will be saved relative to the current working
+ directory and with the same name as on the HTTP server
+ unless <local-path> is provided.
+=================== =================================================
+
+.. _cmdxd:
+
+Hexadecimal Dump of Memory (xd)
+*******************************
+
+**Command Syntax**::
+
+ xd <hex-address> <byte-count>
+
+**Synopsis**. Dump ``<byte-count>`` bytes of data from address
+``<hex-address>``.
+
+**Example**::
+
+ nsh> xd 410e0 512
+ Hex dump:
+ 0000: 00 00 00 00 9c 9d 03 00 00 00 00 01 11 01 10 06 ................
+ 0010: 12 01 11 01 25 08 13 0b 03 08 1b 08 00 00 02 24 ....%..........$
+ ...
+ 01f0: 08 3a 0b 3b 0b 49 13 00 00 04 13 01 01 13 03 08 .:.;.I..........
+ nsh>
+
+Built-In Commands
+=================
+
+In addition to the commands that are part of NSH listed in the previous
+section above, there can be additional, external *built-in* applications
+that can be added to NSH. These are separately excecuble programs but
+will appear much like the commands that are a part of NSH. The primary
+difference from the user's perspective is that help information about
+the built-in applications is not available directly from NSH. Rather,
+you will need to execute the application with the ``-h`` option to get
+help about using the built-in applications.
+
+There are several built-in applications in the ``apps/`` repository. No
+attempt is made here to enumerate all of them. But a few of the more
+common, useful built-in applications are listed below.
+
+.. _cmdping:
+
+Check Network Peer (ping/ping6)
+*******************************
+
+**Command Syntax**::
+
+ ping [-c <count>] [-i <interval>] <ip-address>
+ ping6 [-c <count>] [-i <interval>] <ip-address>
+
+**Synopsis**. Test the network communication with a remote peer.
+Example::
+
+ nsh> ping 10.0.0.1
+ PING 10.0.0.1 56 bytes of data
+ 56 bytes from 10.0.0.1: icmp_seq=1 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=2 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=3 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=4 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=5 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=6 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=7 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=8 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=9 time=0 ms
+ 56 bytes from 10.0.0.1: icmp_seq=10 time=0 ms
+ 10 packets transmitted, 10 received, 0% packet loss, time 10190 ms
+ nsh>
+
+``ping6`` differs from ``ping`` in that it uses IPv6 addressing.
+
+
diff --git a/content/docs/10.2.0/_sources/applications/nsh/config.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/config.rst.txt
new file mode 100644
index 0000000..55b39c2
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/nsh/config.rst.txt
@@ -0,0 +1,488 @@
+.. |br| raw:: html
+
+ <br/>
+
+======================
+Configuration Settings
+======================
+
+The availability of the above commands depends upon features that may or
+may not be enabled in the NuttX configuration file. The following
+:ref:`cmdtable <cmddependencies>` indicates the dependency of each command on
+NuttX configuration settings. General configuration settings are
+discussed in the NuttX Porting Guide.
+Configuration settings specific to NSH as discussed at the
+:ref:`cmdbottom <nshconfiguration>` of this document.
+
+Note that in addition to general NuttX configuration settings, each NSH
+command can be individually disabled via the settings in the rightmost
+column. All of these settings make the configuration of NSH potentially
+complex but also allow it to squeeze into very small memory footprints.
+
+.. _cmddependencies:
+
+Command Dependencies on Configuration Settings
+==============================================
+
+====================== =========================================== ======================
+Command Depends on Configuration Can Be Disabled with
+====================== =========================================== ======================
+``[`` ! ``CONFIG_NSH_DISABLESCRIPT`` ``CONFIG_NSH_DISABLE_TEST``
+:ref:`cmdaddroute` ``CONFIG_NET`` && ``CONFIG_NET_ROUTE`` ``CONFIG_NSH_DISABLE_ADDROUTE``
+:ref:`cmdarp` ``CONFIG_NET`` && ``CONFIG_NET_ARP`` ``CONFIG_NSH_DISABLE_ARP``
+:ref:`cmdbase64dec` ``CONFIG_NETUTILS_CODECS`` && ``CONFIG_NSH_DISABLE_BASE64DEC``
+ ``CONFIG_CODECS_BASE64``
+:ref:`cmdbase64enc` ``CONFIG_NETUTILS_CODECS`` && ``CONFIG_NSH_DISABLE_BASE64ENC``
+ ``CONFIG_CODECS_BASE64``
+:ref:`cmdbasename` . ``CONFIG_NSH_DISABLE_BASENAME``
+:ref:`cmdbreak` ! ``CONFIG_NSH_DISABLESCRIPT`` && .
+ ! ``CONFIG_NSH_DISABLE_LOOPS``
+:ref:`cmdcat` ``CONFIG_NSH_DISABLE_CAT`` .
+:ref:`cmdcd` ! ``CONFIG_DISABLE_ENVIRON`` ``CONFIG_NSH_DISABLE_CD``
+:ref:`cmdcmp` ``CONFIG_NSH_DISABLE_CMP`` .
+:ref:`cmdcp` ``CONFIG_NSH_DISABLE_CP`` .
+:ref:`cmddate` ``CONFIG_NSH_DISABLE_DATE`` .
+:ref:`cmddd` ``CONFIG_NSH_DISABLE_DD`` .
+:ref:`cmddelroute` ``CONFIG_NET`` && ``CONFIG_NET_ROUTE`` ``CONFIG_NSH_DISABLE_DELROUTE``
+:ref:`cmddf` ! ``CONFIG_DISABLE_MOUNTPOINT`` ``CONFIG_NSH_DISABLE_DF``
+:ref:`cmddirname` ``CONFIG_NSH_DISABLE_DIRNAME`` .
+:ref:`cmddmesg` ``CONFIG_RAMLOG_SYSLOG`` ``CONFIG_NSH_DISABLE_DMESG``
+:ref:`cmdecho` ``CONFIG_NSH_DISABLE_ECHO`` .
+:ref:`cmdenv` ``CONFIG_FS_PROCFS`` && ``CONFIG_NSH_DISABLE_ENV``
+ ! ``CONFIG_DISABLE_ENVIRON`` && |br|
+ ! ``CONFIG_PROCFS_EXCLUDE_ENVIRON``
+:ref:`cmdexec` ``CONFIG_NSH_DISABLE_EXEC`` .
+:ref:`cmdexit` ``CONFIG_NSH_DISABLE_EXIT`` .
+:ref:`cmdexport` ``CONFIG_NSH_VARS`` &&
+ ! ``CONFIG_DISABLE_ENVIRON`` ``CONFIG_NSH_DISABLE_EXPORT``
+:ref:`cmdfree` ``CONFIG_NSH_DISABLE_FREE`` .
+:ref:`cmdget` ``CONFIG_NET`` && ``CONFIG_NET_UDP`` && ``CONFIG_NSH_DISABLE_GET``
+ *MTU* >= 58\ [#1]_
+:ref:`cmdhelp` [#3]_ ``CONFIG_NSH_DISABLE_HELP`` .
+:ref:`cmdhexdump` ``CONFIG_NSH_DISABLE_HEXDUMP`` .
+:ref:`cmdifconfig` ``CONFIG_NET`` && ``CONFIG_FS_PROCFS`` && ``CONFIG_NSH_DISABLE_IFCONFIG``
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_NET``
+:ref:`cmdifdown` ``CONFIG_NET`` && ``CONFIG_FS_PROCFS`` && ``CONFIG_NSH_DISABLE_IFUPDOWN``
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_NET``
+:ref:`cmdifup` ``CONFIG_NET`` && ``CONFIG_FS_PROCFS`` &&
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_NET`` ``CONFIG_NSH_DISABLE_IFUPDOWN``
+:ref:`cmdinsmod` ``CONFIG_MODULE`` ``CONFIG_NSH_DISABLE_MODCMDS``
+:ref:`cmdirqinfo` ! ``CONFIG_DISABLE_MOUNTPOINT`` && .
+ ``CONFIG_FS_PROCFS`` && |br|
+ ``CONFIG_SCHED_IRQMONITOR``
+:ref:`cmdkill` ``CONFIG_NSH_DISABLE_KILL`` .
+:ref:`cmdlosetup` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_LOSETUP``
+ ``CONFIG_DEV_LOOP``
+:ref:`cmdln` ``CONFIG_PSEUDOFS_SOFTLINKS`` ``CONFIG_NSH_DISABLE_LN``
+:ref:`cmdls` ``CONFIG_NSH_DISABLE_LS`` .
+:ref:`cmdlsmod` ``CONFIG_MODULE`` && ``CONFIG_FS_PROCFS`` ``CONFIG_NSH_DISABLE_MODCMDS``
+ && |br|
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_MODULE``
+:ref:`cmdmd5` ``CONFIG_NETUTILS_CODECS`` && ``CONFIG_NSH_DISABLE_MD5``
+ ``CONFIG_CODECS_HASH_MD5``
+:ref:`cmdmx` . ``CONFIG_NSH_DISABLE_MB``, |br|
+ ``CONFIG_NSH_DISABLE_MH``, |br|
+ ``CONFIG_NSH_DISABLE_MW``
+:ref:`cmdmkdir` (! ``CONFIG_DISABLE_MOUNTPOINT`` \|\| ``CONFIG_NSH_DISABLE_MKDIR``
+ ! ``CONFIG_DISABLE_PSEUDOFS_OPERATIONS``)
+:ref:`cmdmkfatfs` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_MKFATFS``
+ ``CONFIG_FSUTILS_MKFATFS``
+:ref:`cmdmkfifo` ``CONFIG_PIPES`` && ``CONFIG_NSH_DISABLE_MKFIFO``
+ ``CONFIG_DEV_FIFO_SIZE`` > 0
+:ref:`cmdmkrd` ! ``CONFIG_DISABLE_MOUNTPOINT`` ``CONFIG_NSH_DISABLE_MKRD``
+:ref:`cmdmount` ! ``CONFIG_DISABLE_MOUNTPOINT`` ``CONFIG_NSH_DISABLE_MOUNT``
+:ref:`cmdmv` ! ``CONFIG_DISABLE_MOUNTPOINT`` \|\| ``CONFIG_NSH_DISABLE_MV``
+ ! ``CONFIG_DISABLE_PSEUDOFS_OPERATIONS``
+:ref:`cmdnfsmount` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_NFSMOUNT``
+ ``CONFIG_NET`` && ``CONFIG_NFS``
+:ref:`cmdnslookup` ``CONFIG_LIBC_NETDB`` && ``CONFIG_NSH_DISABLE_NSLOOKUP``
+ ``CONFIG_NETDB_DNSCLIENT``
+:ref:`cmdpasswd` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_PASSWD``
+ ``CONFIG_NSH_LOGIN_PASSWD``
+:ref:`cmdpmconfig` ``CONFIG_PM`` ``CONFIG_NSH_DISABLE_PMCONFIG``
+:ref:`cmdpoweroff` ``CONFIG_BOARDCTL_POWEROFF`` ``CONFIG_NSH_DISABLE_POWEROFF``
+:ref:`cmdps` ``CONFIG_FS_PROCFS`` && ``CONFIG_NSH_DISABLE_PS``
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_PROC``
+:ref:`cmdput` ``CONFIG_NET`` && ``CONFIG_NET_UDP`` && ``CONFIG_NSH_DISABLE_PUT``
+ ``MTU >= 558`` [#1]_, [#2]_
+:ref:`cmdpwd` ! ``CONFIG_DISABLE_ENVIRON`` ``CONFIG_NSH_DISABLE_PWD``
+:ref:`cmdreadlink` ``CONFIG_PSEUDOFS_SOFTLINKS`` ``CONFIG_NSH_DISABLE_READLINK``
+:ref:`cmdreboot` ``CONFIG_BOARD_RESET`` ``CONFIG_NSH_DISABLE_REBOOT``
+:ref:`cmdrm` ! ``CONFIG_DISABLE_MOUNTPOINT`` \|\| ``CONFIG_NSH_DISABLE_RM``
+ ! ``CONFIG_DISABLE_PSEUDOFS_OPERATIONS``
+:ref:`cmdrmdir` ! ``CONFIG_DISABLE_MOUNTPOINT`` \|\
+ ! ``CONFIG_DISABLE_PSEUDOFS_OPERATIONS`` ``CONFIG_NSH_DISABLE_RMDIR``
+:ref:`cmdrmmod` ``CONFIG_MODULE`` ``CONFIG_NSH_DISABLE_MODCMDS``
+:ref:`cmdroute` ``CONFIG_FS_PROCFS`` && ``CONFIG_NSH_DISABLE_ROUTE``
+ ``CONFIG_FS_PROCFS_EXCLUDE_NET`` && |br|
+ ! ``CONFIG_FS_PROCFS_EXCLUDE_ROUTE`` &&
+ ``CONFIG_NET_ROUTE`` && |br|
+ ! ``CONFIG_NSH_DISABLE_ROUTE`` && |br|
+ (``CONFIG_NET_IPv4`` \|\
+ ``CONFIG_NET_IPv6``)
+:ref:`cmdrptun` ``CONFIG_RPTUN`` ``CONFIG_NSH_DISABLE_RPTUN``
+:ref:`cmdset` ``CONFIG_NSH_VARS`` \|\| ``CONFIG_NSH_DISABLE_SET``
+ ! ``CONFIG_DISABLE_ENVIRON``
+:ref:`cmdshutdown` ``CONFIG_BOARDCTL_POWEROFF`` \|\| ``CONFIG_NSH_DISABLE_SHUTDOWN``
+ ``CONFIG_BOARD_RESET``
+:ref:`cmdsleep` . ``CONFIG_NSH_DISABLE_SLEEP``
+``cmdsource`` ``CONFIG_FILE_STREAM`` && ``CONFIG_NSH_DISABLE_SOURCE``
+ ! ``CONFIG_NSH_DISABLESCRIPT``
+:ref:`cmdtelnetd` ``CONFIG_NSH_TELNET`` ``CONFIG_NSH_DISABLE_TELNETD``
+:ref:`cmdtest` ! ``CONFIG_NSH_DISABLESCRIPT`` ``CONFIG_NSH_DISABLE_TEST``
+:ref:`cmdtime` . ``CONFIG_NSH_DISABLE_TIME``
+:ref:`cmdtruncate` ! ``CONFIG_DISABLE_MOUNTPOINT`` ``CONFIG_NSH_DISABLE_TRUNCATE``
+:ref:`cmdumount` ! ``CONFIG_DISABLE_MOUNTPOINT`` ``CONFIG_NSH_DISABLE_UMOUNT``
+:ref:`cmduname` . ``CONFIG_NSH_DISABLE_UNAME``
+:ref:`cmdunset` ``CONFIG_NSH_VARS`` \|\| ``CONFIG_NSH_DISABLE_UNSET``
+ ! ``CONFIG_DISABLE_ENVIRON``
+:ref:`cmdurldecode` ! ``CONFIG_NETUTILS_CODECS`` && ``CONFIG_NSH_DISABLE_URLDECODE``
+ ``CONFIG_CODECS_URLCODE``
+:ref:`cmdurlencode` ! ``CONFIG_NETUTILS_CODECS`` && ``CONFIG_NSH_DISABLE_URLENCODE``
+ ``CONFIG_CODECS_URLCODE``
+:ref:`cmduseradd` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_USERADD``
+ ``CONFIG_NSH_LOGIN_PASSWD``
+:ref:`cmduserdel` ! ``CONFIG_DISABLE_MOUNTPOINT`` && ``CONFIG_NSH_DISABLE_USERDEL``
+ ``CONFIG_NSH_LOGIN_PASSWD``
+:ref:`cmdusleep` . ``CONFIG_NSH_DISABLE_USLEEP``
+:ref:`cmdwget` ``CONFIG_NET`` && ``CONFIG_NET_TCP`` ``CONFIG_NSH_DISABLE_WGET``
+:ref:`cmdxd` . ``CONFIG_NSH_DISABLE_XD``
+====================== =========================================== ======================
+
+.. [#1] Because of hardware padding, the actual required packet size may be larger
+.. [#2] Special TFTP server start-up options will probably be required to permit creation of files for the correct operation of the ``put`` command.
+.. [#3] Verbose help output can be suppressed by defining ``CONFIG_NSH_HELP_TERSE``. In that case, the help command is still available but will be slightly smaller.
+
+Built-In Command Dependencies on Configuration Settings
+=======================================================
+
+All built-in applications require that support for NSH built-in
+applications has been enabled. This support is enabled with
+``CONFIG_BUILTIN=y`` and ``CONFIG_NSH_BUILTIN_APPS=y``.
+
+============= ==================================================================================================
+Command Depends on Configuration
+============= ==================================================================================================
+``ping`` ``CONFIG_NET`` && ``CONFIG_NET_ICMP`` && ``CONFIG_NET_ICMP_SOCKET`` && ``CONFIG_SYSTEM_PING``
+``ping6`` ``CONFIG_NET`` && ``CONFIG_NET_ICMPv6`` && ``CONFIG_NET_ICMPv6_SOCKET`` && ``CONFIG_SYSTEM_PING6``
+============= ==================================================================================================
+
+.. _nshconfiguration:
+
+NSH-Specific Configuration Settings
+===================================
+
+The behavior of NSH can be modified with the following settings in the
+``boards/<arch>/<chip>/<board>/defconfig`` file:
+
+=================================== ==================================
+Configuration Description
+=================================== ==================================
+ ``CONFIG_NSH_READLINE`` Selects the minimal implementation of ``readline()``.
+ This minimal implementation provides on backspace for command
+ line editing. It expects some minimal VT100 command support from the terminal.
+
+ ``CONFIG_NSH_CLE`` Selects the more extensive, EMACS-like command line editor.
+ Select this option only if (1) you don't mind a modest increase
+ in the FLASH footprint, and (2) you work with a terminal that
+ supports extensive VT100 editing commands. Selecting this option
+ will add probably 1.5-2KB to the FLASH footprint.
+
+ ``CONFIG_NSH_BUILTIN_APPS`` Support external registered, "builtin" applications that can
+ be executed from the NSH command line (see apps/README.txt for
+ more information). This required ``CONFIG_BUILTIN`` to enable
+ NuttX support for "builtin" applications.
+
+ ``CONFIG_NSH_FILEIOSIZE`` Size of a static I/O buffer used for file access (ignored if there
+ is no file system). Default is 1024.
+
+ ``CONFIG_NSH_STRERROR`` ``strerror(errno)`` makes more readable output but
+ ``strerror()`` is very large and will not be used unless this
+ setting is *y*. This setting depends upon the ``strerror()``
+ having been enabled with ``CONFIG_LIBC_STRERROR``.
+
+ ``CONFIG_NSH_LINELEN`` The maximum length of one command line and of one output line.
+ Default: 80
+
+ ``CONFIG_NSH_DISABLE_SEMICOLON`` By default, you can enter multiple NSH commands on a line
+ with each command separated by a semicolon. You can disable this
+ feature to save a little memory on FLASH challenged platforms.
+ Default: n
+
+ ``CONFIG_NSH_CMDPARMS`` If selected, then the output from commands, from file applications,
+ and from NSH built-in commands can be used as arguments to other
+ commands. The entity to be executed is identified by
+ enclosing the command line in back quotes. For example::
+
+ set FOO `myprogram $BAR`
+
+ will execute the program named ``myprogram`` passing it the
+ value of the environment variable ``BAR``. The value of the
+ environment variable ``FOO`` is then set output of ``myprogram``
+ on ``stdout``. Because this feature commits significant
+ resources, it is disabled by default. The ``CONFIG_NSH_CMDPARMS`` interim
+ output will be retained in a temporary file. Full path to a
+ directory where temporary files can be created is taken from
+ ``CONFIG_LIBC_TMPDIR`` and it defaults to ``/tmp`` if
+ ``CONFIG_LIBC_TMPDIR`` is not set.
+
+ ``CONFIG_NSH_MAXARGUMENTS`` The maximum number of NSH command arguments. Default: 6
+
+ ``CONFIG_NSH_ARGCAT`` Support concatenation of strings with environment variables or
+ command output. For example::
+
+ set FOO XYZ
+ set BAR 123
+ set FOOBAR ABC_${FOO}_${BAR}
+
+ would set the environment variable ``FOO`` to ``XYZ``,
+ ``BAR`` to ``123`` and ``FOOBAR`` to ``ABC_XYZ_123``. If
+ ``CONFIG_NSH_ARGCAT`` is not selected, then a slightly small
+ FLASH footprint results but then also only simple environment
+ variables like ``$FOO`` can be used on the command line.
+
+ ``CONFIG_NSH_VARS`` By default, there are no internal NSH variables. NSH will use OS
+ environment variables for all variable storage. If this option,
+ NSH will also support local NSH variables. These variables are,
+ for the most part, transparent and work just like the OS
+ environment variables. The difference is that when you
+ create new tasks, all of environment variables are
+ inherited by the created tasks. NSH local variables are not.
+ If this option is enabled (and ``CONFIG_DISABLE_ENVIRON`` is not),
+ then a new command called 'export' is enabled. The export
+ command works very must like the set command except that is
+ operates on environment variables. When CONFIG_NSH_VARS
+ is enabled, there are changes in the behavior of certain commands.
+ See following :ref:`cmdtable <nsh_vars_table>`.
+
+ ``CONFIG_NSH_QUOTE`` Enables back-slash quoting of certain characters within the
+ command. This option is useful for the case where an NSH script
+ is used to dynamically generate a new NSH script. In that case,
+ commands must be treated as simple text strings without
+ interpretation of any special characters. Special characters
+ such as ``$``, :literal:`\``, ``"``, and others must be
+ retained intact as part of the test string. This option is
+ currently only available is ``CONFIG_NSH_ARGCAT`` is also
+ selected.
+
+ ``CONFIG_NSH_NESTDEPTH`` The maximum number of nested ``if-then[-else]-fi`` <#conditional>`__
+ sequences that are permissible. Default: 3
+
+ ``CONFIG_NSH_DISABLESCRIPT`` This can be set to *y* to suppress support for scripting.
+ This setting disables the ```sh`` <#cmdsh>`__,
+ ```test`` <#cmdtest>`__, and ```[`` <#cmtest>`__ commands and
+ the ```if-then[-else]-fi`` <#conditional>`__
+ construct. This would only be set on systems where a minimal
+ footprint is a necessity and scripting is not.
+
+ ``CONFIG_NSH_DISABLE_ITEF`` If scripting is enabled, then then this option can be selected
+ to suppress support for ``if-then-else-fi`` sequences in
+ scripts. This would only be set on systems where some minimal
+ scripting is required but ``if-then-else-fi`` is not.
+
+ ``CONFIG_NSH_DISABLE_LOOPS`` If scripting is enabled, then then this option can be selected
+ suppress support ``for while-do-done`` and
+ ``until-do-done`` sequences in scripts. This would only be set
+ on systems where some minimal scripting is required but looping
+ is not.
+
+ ``CONFIG_NSH_DISABLEBG`` This can be set to *y* to suppress support for background
+ commands. This setting disables the ```nice`` <#cmdoverview>`__
+ command prefix and the ```&`` <#cmdoverview>`__ command
+ suffix. This would only be set on systems where a minimal footprint
+ is a necessity and background command execution is not.
+
+ ``CONFIG_NSH_MMCSDMINOR`` If the architecture supports an MMC/SD slot and if the NSH
+ architecture specific logic is present, this option will provide
+ the MMC/SD minor number, i.e., the MMC/SD block driver will be
+ registered as ``/dev/mmcsd``\ *N* where *N* is the minor number.
+ Default is zero.
+
+ ``CONFIG_NSH_ROMFSETC`` Mount a ROMFS file system at ``/etc`` and provide a startup
+ script at ``/etc/init.d/rcS``.
+ The default startup script will mount a FAT FS RAMDISK at
+ ``/tmp`` but the logic is `easily extensible <#startupscript>`__.
+
+ ``CONFIG_NSH_CONSOLE`` If ``CONFIG_NSH_CONSOLE`` is set to *y*, then a serial console
+ front-end is selected.
+
+ Normally, the serial console device is a UART and RS-232
+ interface. However, if ``CONFIG_USBDEV`` is defined,
+ then a USB serial device may, instead, be used if the one of
+ the following are defined:
+
+ - ``CONFIG_PL2303`` and ``CONFIG_PL2303_CONSOLE``.
+ Sets up the Prolifics PL2303 emulation as a console device
+ at ``/dev/console``.
+ - ``CONFIG_CDCACM`` and ``CONFIG_CDCACM_CONSOLE``.
+ Sets up the CDC/ACM serial device as a console device at
+ ``/dev/console``.
+ - ``CONFIG_NSH_USBCONSOLE``. If defined, then an arbitrary USB
+ device may be used to as the NSH console. In this case,
+ ``CONFIG_NSH_USBCONDEV`` must be defined to indicate which
+ USB device to use as the console. The advantage of
+ using a device other that ``/dev/console`` is that
+ normal debug output can then use ``/dev/console`` while NSH
+ uses ``CONFIG_NSH_USBCONDEV``.
+
+ ``CONFIG_NSH_USBCONDEV``. If ``CONFIG_NSH_USBCONSOLE`` is
+ set to 'y', then ``CONFIG_NSH_USBCONDEV`` must also be set to select the USB
+ device used to support the NSH console. This should be set to
+ the quoted name of a readable/write-able USB driver
+ such as: ``CONFIG_NSH_USBCONDEV="/dev/ttyACM0"``.
+
+ If there are more than one USB slots, then a USB device minor
+ number may also need to be provided:
+
+ - ``CONFIG_NSH_UBSDEV_MINOR``: The minor device number of the USB device. Default: 0
+
+ If USB tracing is enabled (``CONFIG_USBDEV_TRACE``), then
+ NSH will initialize USB tracing as requested by the following.
+ Default: Only USB errors are traced.
+
+ - ``CONFIG_NSH_USBDEV_TRACEINIT``: Show initialization events
+ - ``CONFIG_NSH_USBDEV_TRACECLASS``: Show class driver events
+ - ``CONFIG_NSH_USBDEV_TRACETRANSFERS``: Show data transfer events
+ - ``CONFIG_NSH_USBDEV_TRACECONTROLLER``: Show controller events
+ - ``CONFIG_NSH_USBDEV_TRACEINTERRUPTS``: Show interrupt-related events.
+
+ ``CONFIG_NSH_ALTCONDEV`` and If ``CONFIG_NSH_CONSOLE`` is set ``CONFIG_NSH_CONDEV``
+ to *y*, then ``CONFIG_NSH_ALTCONDEV`` may also
+ be selected to enable use of an alternate character device to
+ support the NSH console. If ``CONFIG_NSH_ALTCONDEV`` is
+ selected, then ``CONFIG_NSH_CONDEV`` holds the
+ quoted name of a readable/write-able character
+ driver such as: ``CONFIG_NSH_CONDEV="/dev/ttyS1"``.
+ This is useful, for example, to separate the NSH command line
+ from the system console when the system console is used to provide
+ debug output. Default: ``stdin`` and ``stdout`` (probably
+ "``/dev/console``")
+
+ - **NOTE 1:** When any other device other than
+ ``/dev/console`` is used for a user interface, (1) linefeeds
+ (``\n``) will not be expanded to carriage return / linefeeds
+ (``\r\n``). You will need to configure your terminal
+ program to account for this.
+ And (2) input is not automatically echoed so you
+ will have to turn local echo on.
+ - **NOTE 2:** This option forces the console of all sessions to
+ use NSH_CONDEV. Hence, this option only makes sense for a
+ system that supports only a single session. This option
+ is, in particular, incompatible with Telnet
+ sessions because each Telnet session must use a different
+ console device.
+
+ ``CONFIG_NSH_TELNET`` If ``CONFIG_NSH_TELNET`` is set to *y*, then a TELNET server
+ front-end is selected. When this option is provided, you may log
+ into NuttX remotely using telnet in order to access NSH.
+
+ ``CONFIG_NSH_ARCHINIT`` Set ``CONFIG_NSH_ARCHINIT`` if your board provides architecture
+ specific initialization via the board-specific function
+ ``board_app_initialize()``. This function will be called early in
+ NSH initialization to allow board logic to do such things as
+ configure MMC/SD slots.
+=================================== ==================================
+
+.. _nsh_vars_table:
+
+================== =================================== =============================================
+CMD w/o ``CONFIG_NSH_VARS`` w/``CONFIG_NSH_VARS``
+================== =================================== =============================================
+``set <a> <b>`` Set environment variable <a> to <b> Set NSH variable <a> to <b> (Unless the NSH variable has been *promoted* via
+ ``export``, in which case the env ironment variable of the same name is set to <b>).
+``set`` Causes an error. Lists all NSH variables.
+``unset <a>`` Unsets environment variable <a> Unsets both environment variable *and* NSH variable with and name <a>
+``export <a> <b>`` Causes an error, Unsets NSH variable <a>. Sets environment variable <a> to <b>.
+``export <a>`` Causes an error. Sets environment variable <a> to the value of NSH variable <a> (or "" if the
+ NSH variable has not been set). Unsets NSH local variable <a>.
+``env`` Lists all environment variables Lists all environment variables (*only*)
+================== =================================== =============================================
+
+
+If Telnet is selected for the NSH console, then we must configure the
+resources used by the Telnet daemon and by the Telnet clients.
+
+====================================== ================================
+Configuration Description
+====================================== ================================
+``CONFIG_NSH_TELNETD_PORT`` The telnet daemon will listen on this TCP port number for connections. Default: 23
+``CONFIG_NSH_TELNETD_DAEMONPRIO`` Priority of the Telnet daemon. Default: ``SCHED_PRIORITY_DEFAULT``
+``CONFIG_NSH_TELNETD_DAEMONSTACKSIZE`` Stack size allocated for the Telnet daemon. Default: 2048
+``CONFIG_NSH_TELNETD_CLIENTPRIO`` Priority of the Telnet client. Default: ``SCHED_PRIORITY_DEFAULT``
+``CONFIG_NSH_TELNETD_CLIENTSTACKSIZE`` Stack size allocated for the Telnet client. Default: 2048
+====================================== ================================
+
+One or both of ``CONFIG_NSH_CONSOLE`` and ``CONFIG_NSH_TELNET`` must be
+defined. If ``CONFIG_NSH_TELNET`` is selected, then there some other
+configuration settings that apply:
+
+====================================== ================================
+Configuration Description
+====================================== ================================
+``CONFIG_NET=y`` Of course, networking must be enabled.
+``CONFIG_NET_TCP=y`` TCP/IP support is required for telnet (as well as various other
+ TCP-related configuration settings).
+``CONFIG_NSH_IOBUFFER_SIZE`` Determines the size of the I/O buffer to use for sending/ receiving
+ TELNET commands/responses
+``CONFIG_NSH_DHCPC`` Obtain the IP address via DHCP.
+``CONFIG_NSH_IPADDR`` If ``CONFIG_NSH_DHCPC`` is NOT set, then the static IP address must be
+ provided.
+``CONFIG_NSH_DRIPADDR`` Default router IP address
+``CONFIG_NSH_NETMASK`` Network mask
+``CONFIG_NSH_NOMAC`` Set if your Ethernet hardware has no built-in MAC address. If set, a
+ bogus MAC will be assigned.
+``CONFIG_NSH_MAX_ROUNDTRIP`` This is the maximum round trip for a response to a ICMP ECHO request. It
+ is in units of deciseconds. The default is 20 (2 seconds).
+====================================== ================================
+
+If you use DHCPC, then some special configuration network options are
+required. These include:
+
+============================================== ============================================================
+Configuration Description
+============================================== ============================================================
+``CONFIG_NET=y`` Of course, networking must be enabled.
+``CONFIG_NET_UDP=y`` UDP support is required for DHCP (as well as various other
+ UDP-related configuration settings).
+``CONFIG_NET_BROADCAST=y`` UDP broadcast support is needed.
+``CONFIG_NET_ETH_PKTSIZE=650`` (or larger) Per RFC2131 (p. 9), the DHCP client must be prepared to receive
+ DHCP messages of up to 576 bytes (excluding Ethernet, IP, or
+ UDP headers and FCS). NOTE: Note that the actual MTU setting
+ will depend upon the specific link protocol. Here Ethernet
+ is indicated.
+============================================== ============================================================
+
+If ``CONFIG_NSH_ROMFSETC`` is selected, then the following additional
+configuration setting apply:
+
+============================== ==============================================================
+Configuration Description
+============================== ==============================================================
+``CONFIG_NSH_ARCHROMFS`` May be defined to specify an alternative ROMFS image
+ that can be found at ``boards/<arch>/<chip>/<board>/include/nsh_romfsimg.h``.
+``CONFIG_NSH_ROMFSMOUNTPT`` The default mountpoint for the ROMFS volume is ``"/etc"``,
+ but that can be changed with this setting. This must be a
+ absolute path beginning with '``/``' and enclosed in quotes.
+``CONFIG_NSH_INITSCRIPT`` This is the relative path to the startup script within the
+ mountpoint. The default is ``"init.d/rcS"``. This is a relative
+ path and must not start with '``/``' but must be enclosed in quotes.
+``CONFIG_NSH_ROMFSDEVNO`` This is the minor number of the ROMFS block device.
+ The default is '``0``' corresponding to ``/dev/ram0``.
+``CONFIG_NSH_ROMFSSECTSIZE`` This is the sector size to use with the ROMFS volume. Since the
+ default volume is very small, this defaults to 64 but should
+ be increased if the ROMFS volume were to be become large.
+ Any value selected must be a power of 2.
+============================== ==============================================================
+
+When the default ``rcS`` file used when ``CONFIG_NSH_ROMFSETC`` is
+selected, it will mount a FAT FS under ``/tmp``. The following
+selections describe that FAT FS.
+
+============================== =======================================================
+Configuration Description
+============================== =======================================================
+``CONFIG_NSH_FATDEVNO`` This is the minor number of the FAT FS block device.
+ The default is '``1``' corresponding to ``/dev/ram1``.
+``CONFIG_NSH_FATSECTSIZE`` This is the sector size use with the FAT FS. Default is 512.
+============================== =======================================================
+
diff --git a/content/docs/10.2.0/_sources/applications/nsh/customizing.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/customizing.rst.txt
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+*************************
+Customizing the NuttShell
+*************************
+
+**Overview.** The NuttShell (NSH) is a simple shell application that may
+be used with NuttX. It supports a variety of commands and is (very)
+loosely based on the Bash shell and the common utilities used with Bash
+shell programming. The paragraphs in this appendix will focus on
+customizing NSH: Adding new commands, changing the initialization
+sequence, etc.
+
+The NSH Library and NSH Initialization
+**************************************
+
+**Overview.** NSH is implemented as a library that can be found at
+``apps/nshlib``. As a library, it can be custom built into any
+application that follows the NSH initialization sequence described
+below. As an example, the code at ``apps/examples/nsh/nsh_main.c``
+illustrates how to start NSH and the logic there was intended to be
+incorporated into your own custom code. Although code was generated
+simply as an example, in the end most people just use this example code
+as their application ``main()`` function. That initialization performed
+by that example is discussed in the following paragraphs.
+
+NSH Initialization sequence
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The NSH start-up sequence is very simple. As an example, the code at
+``apps/system/nsh/nsh_main.c`` illustrates how to start NSH. It simple
+does the following:
+
+ #. This function calls ``nsh_initialize()`` which initializes the NSH
+ library. ``nsh_initialize()`` is described in more detail below.
+
+ #. If the Telnetconsole is enabled, it calls ``nsh_telnetstart()`` which
+ resides in the NSH library. ``nsh_telnetstart()`` will start the
+ Telnet daemon that will listen for Telnet connections and start
+ remote NSH sessions.
+
+ #. If a local console is enabled (probably on a serial port), then
+ ``nsh_consolemain()`` is called. ``nsh_consolemain()`` also resides
+ in the NSH library. ``nsh_consolemain()`` does not return so that
+ finished the entire NSH initialization sequence.
+
+``nsh_initialize()``
+~~~~~~~~~~~~~~~~~~~~
+
+The NSH initialization function, ``nsh_initialize()``, be found in
+``apps/nshlib/nsh_init.c``. It does only three things:
+
+ #. ``nsh_romfsetc()``: If so configured, it executes an NSH start-up
+ script that can be found at ``/etc/init.d/rcS`` in the target file
+ system. The ``nsh_romfsetc()`` function can be found in
+ ``apps/nshlib/nsh_romfsetc.c``. This function will (1) register a
+ ROMFS file system, then (2) mount the ROMFS file system. ``/etc`` is
+ the default location where a read-only, ROMFS file system is mounted
+ by ``nsh_romfsetc()``.
+
+ The ROMFS image is, itself, just built into the firmware. By default,
+ this ``rcS`` start-up script contains the following logic::
+
+ # Create a RAMDISK and mount it at XXXRDMOUNTPOINTXXX
+
+ mkrd -m XXXMKRDMINORXXX -s XXMKRDSECTORSIZEXXX XXMKRDBLOCKSXXX
+ mkfatfs /dev/ramXXXMKRDMINORXXX
+ mount -t vfat /dev/ramXXXMKRDMINORXXX XXXRDMOUNTPOINTXXX
+
+ Where the ``XXXX*XXXX`` strings get replaced in the template when the
+ ROMFS image is created:
+
+ - ``XXXMKRDMINORXXX`` will become the RAM device minor number.
+ Default: 0
+
+ - ``XXMKRDSECTORSIZEXXX`` will become the RAM device sector size
+
+ - ``XXMKRDBLOCKSXXX`` will become the number of sectors in the
+ device.
+
+ - ``XXXRDMOUNTPOINTXXX`` will become the configured mount point.
+ Default: ``/etc``
+
+ By default, the substituted values would yield an ``rcS`` file like::
+
+ # Create a RAMDISK and mount it at /tmp
+
+ mkrd -m 1 -s 512 1024
+ mkfatfs /dev/ram1
+ mount -t vfat /dev/ram1 /tmp
+
+ This script will, then:
+
+ - Create a RAMDISK of size 512*1024 bytes at ``/dev/ram1``,
+
+ - Format a FAT file system on the RAM disk at ``/dev/ram1``, and
+ then
+
+ - Mount the FAT file system at a configured mountpoint, ``/tmp``.
+
+ This ``rcS`` template file can be found at
+ ``apps/nshlib/rcS.template``. The resulting ROMFS file system can be
+ found in ``apps/nshlib/nsh_romfsimg.h``.
+
+ #. ``board_app_initialize()``: Next any architecture-specific NSH
+ initialization will be performed (if any). For the STM3240G-EVAL,
+ this architecture specific initialization can be found at
+ ``boards/arm/stm32/stm3240g-eval/src/stm32_appinit.c``. This it does
+ things like: (1) Initialize SPI devices, (2) Initialize SDIO, and (3)
+ mount any SD cards that may be inserted.
+
+ #. ``nsh_netinit()``: The ``nsh_netinit()`` function can be found in
+ ``apps/nshlib/nsh_netinit.c``.
+
+NSH Commands
+************
+
+**Overview.** NSH supports a variety of commands as part of the NSH
+program. All of the NSH commands are listed in the NSH documentation
+`above <#cmdoverview>`__. Not all of these commands may be available at
+any time, however. Many commands depend upon certain NuttX configuration
+options. You can enter the help command at the NSH prompt to see the
+commands actual available:
+
+For example, if network support is disabled, then all network-related
+commands will be missing from the list of commands presented by
+'``nsh> help``'. You can see the specific command dependencies in the
+table `above <#cmddependencies>`__.
+
+Adding New NSH Commands
+~~~~~~~~~~~~~~~~~~~~~~~
+
+New commands can be added to the NSH very easily. You simply need to add
+two things:
+
+ #. The implementation of your command, and
+
+ #. A new entry in the NSH command table
+
+**Implementation of Your Command.** For example, if you want to add a
+new a new command called ``mycmd`` to NSH, you would first implement the
+``mycmd`` code in a function with this prototype:
+
+.. code-block:: c
+
+ int cmd_mycmd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
+
+The ``argc`` and ``argv`` are used to pass command line arguments to the
+NSH command. Command line parameters are passed in a very standard way:
+``argv[0]`` will be the name of the command, and ``argv[1]`` through
+``argv[argc-1]`` are the additional arguments provided on the NSH
+command line.
+
+The first parameter, ``vtbl``, is special. This is a pointer to
+session-specific state information. You don't need to know the contents
+of the state information, but you do need to pass this ``vtbl`` argument
+when you interact with the NSH logic. The only use you will need to make
+of the ``vtbl`` argument will be for outputting data to the console. You
+don't use ``printf()`` within NSH commands. Instead you would use:
+
+.. code-block:: c
+
+ void nsh_output(FAR struct nsh_vtbl_s *vtbl, const char *fmt, ...);
+
+So if you only wanted to output "Hello, World!" on the console, then
+your whole command implementation might be:
+
+.. code-block:: c
+
+ int cmd_mycmd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+ {
+ nsh_output(vtbl, "Hello, World!");
+ return 0;
+ }
+
+The prototype for the new command should be placed in
+``apps/examples/nshlib/nsh.h``.
+
+**Adding You Command to the NSH Command Table**. All of the commands
+support by NSH appear in a single table called:
+
+.. code-block:: c
+
+ const struct cmdmap_s g_cmdmap[]
+
+That table can be found in the file
+``apps/examples/nshlib/nsh_parse.c``. The structure ``cmdmap_s`` is also
+defined in ``apps/nshlib/nsh_parse.c``:
+
+.. code-block:: c
+
+ struct cmdmap_s
+ {
+ const char *cmd; /* Name of the command */
+ cmd_t handler; /* Function that handles the command */
+ uint8_t minargs; /* Minimum number of arguments (including command) */
+ uint8_t maxargs; /* Maximum number of arguments (including command) */
+ const char *usage; /* Usage instructions for 'help' command */
+ };
+
+This structure provides everything that you need to describe your
+command: Its name (``cmd``), the function that handles the command
+(``cmd_mycmd()``), the minimum and maximum number of arguments needed by
+the command, and a string describing the command line arguments. That
+last string is what is printed when enter "``nsh> help``".
+
+So, for you sample command, you would add the following the to the
+``g_cmdmap[]`` table:
+
+.. code-block:: c
+
+ { "mycmd", cmd_mycmd, 1, 1, NULL },
+
+This entry is particularly simply because ``mycmd`` is so simple. Look
+at the other commands in ``g_cmdmap[]`` for more complex examples.
diff --git a/content/docs/10.2.0/_sources/applications/nsh/index.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/index.rst.txt
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+===============
+NuttShell (NSH)
+===============
+
+The NuttShell is a very complete shell system to be used in NuttX, similar to bash and other similar options. It supports a rich set of included commands, scripting and the ability to run your own applications as "builtin" (part of the same NuttX binary). NSH is implemented as an application where most of the functionality is part of the library called `nshlib`.
+
+As such, NSH is completely optional and can be disabled so that NuttX directly starts a given task instead of the main ``nsh`` application.
+
+.. toctree::
+ :maxdepth: 2
+ :caption: Contents
+
+ nsh.rst
+ commands.rst
+ config.rst
+ customizing.rst
+ builtin.rst
+ installation.rst
+ login.rst
diff --git a/content/docs/10.2.0/_sources/applications/nsh/installation.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/installation.rst.txt
new file mode 100644
index 0000000..2df8547
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@@ -0,0 +1,184 @@
+******************************
+Customizing NSH Initialization
+******************************
+
+**Ways to Customize NSH Initialization**. There are three ways to
+customize the NSH start-up behavior. Here they are presented in order of
+increasing difficulty:
+
+ #. You can extend the initialization logic in
+ ``boards/arm/stm32/stm3240g-eval/src/stm32_appinit.c``. The logic
+ there is called each time that NSH is started and is good place in
+ particular for any device-related initialization.
+
+ #. You replace the sample code at ``apps/examples/nsh/nsh_main.c`` with
+ whatever start-up logic that you want. NSH is a library at
+ ``apps/nshlib``. ``apps.examples/nsh`` is just a tiny, example
+ start-up function (``CONFIG_USER_ENTRYPOINT``\ ()) that that runs
+ immediately and illustrates how to start NSH If you want something
+ else to run immediately then you can write your write your own custom
+ ``CONFIG_USER_ENTRYPOINT``\ () function and then start other tasks
+ from your custom ``CONFIG_USER_ENTRYPOINT``\ ().
+
+ #. NSH also supports a start-up script that executed when NSH first
+ runs. This mechanism has the advantage that the start-up script can
+ contain any NSH commands and so can do a lot of work with very little
+ coding. The disadvantage is that is is considerably more complex to
+ create the start-up script. It is sufficiently complex that is
+ deserves its own paragraph
+
+NuttShell Start up Scripts
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+First of all you should look at `NSH Start-Up Script <#startupscript>`__
+paragraph. Most everything you need to know can be found there. That
+information will be repeated and extended here for completeness.
+
+**NSH Start-Up Script**. NSH supports options to provide a start up
+script for NSH. The start-up script contains any command support by NSH
+(i.e., that you see when you enter 'nsh> help'). In general this
+capability is enabled with ``CONFIG_NSH_ROMFSETC=y``, but has several
+other related configuration options as described with the `NSH-specific
+configuration settings <#nshconfiguration>`__ paragraph. This capability
+also depends on:
+
+ - ``CONFIG_DISABLE_MOUNTPOINT=n``. If mount point support is disabled,
+ then you cannot mount *any* file systems.
+
+ - ``CONFIG_FS_ROMFS`` enabled. This option enables ROMFS file system
+ support.
+
+**Default Start-Up Behavior**. The implementation that is provided is
+intended to provide great flexibility for the use of Start-Up files.
+This paragraph will discuss the general behavior when all of the
+configuration options are set to the default values.
+
+In this default case, enabling ``CONFIG_NSH_ROMFSETC`` will cause NSH to
+behave as follows at NSH start-up time:
+
+ - NSH will create a read-only RAM disk (a ROM disk), containing a tiny
+ ROMFS file system containing the following::
+
+ `--init.d/
+ `-- rcS
+
+ Where ``rcS`` is the NSH start-up script.
+
+ - NSH will then mount the ROMFS file system at ``/etc``, resulting in::
+
+ |--dev/
+ | `-- ram0
+ `--etc/
+ `--init.d/
+ `-- rcS
+
+ - By default, the contents of ``rcS`` script are::
+
+ # Create a RAMDISK and mount it at /tmp
+
+ mkrd -m 1 -s 512 1024
+ mkfatfs /dev/ram1
+ mount -t vfat /dev/ram1 /tmp
+
+ - NSH will execute the script at ``/etc/init.d/rcS`` at start-up
+ (before the first NSH prompt). After execution of the script, the
+ root FS will look like::
+
+ |--dev/
+ | |-- ram0
+ | `-- ram1
+ |--etc/
+ | `--init.d/
+ | `-- rcS
+ `--tmp/
+
+**Example Configurations**. Here are some configurations that have
+``CONFIG_NSH_ROMFSETC=y`` in the NuttX configuration file. They might
+provide useful examples:
+
+ - ``boards/arm/stm32/hymini-stm32v/nsh2``
+ - ``boards/arm/dm320/ntosd-dm320/nsh``
+ - ``boards/sim/sim/sim/nsh``
+ - ``boards/sim/sim/sim/nsh2``
+ - ``boards/sim/sim/sim/nx``
+ - ``boards/sim/sim/sim/nx11``
+ - ``boards/sim/sim/sim/touchscreen``
+
+In most of these cases, the configuration sets up the *default*
+``/etc/init.d/rcS`` script. The default script is here:
+``apps/nshlib/rcS.template``. (The funny values in the template like
+``XXXMKRDMINORXXX`` get replaced via ``sed`` at build time). This
+default configuration creates a ramdisk and mounts it at ``/tmp`` as
+discussed above.
+
+If that default behavior is not what you want, then you can provide your
+own custom ``rcS`` script by defining ``CONFIG_NSH_ARCHROMFS=y`` in the
+configuration file.
+
+**Modifying the ROMFS Image**. The contents of the ``/etc`` directory
+are retained in the file ``apps/nshlib/nsh_romfsimg.h`` OR, if
+``CONFIG_NSH_ARCHROMFS`` is defined,
+``include/arch/board/nsh_romfsimg.h``. In order to modify the start-up
+behavior, there are three things to study:
+
+ #. **Configuration Options.** The additional ``CONFIG_NSH_ROMFSETC``
+ configuration options discussed with the other `NSH-specific
+ configuration settings <#nshconfiguration>`__.
+
+ #. ``tools/mkromfsimg.sh`` **Script**. The script
+ ``tools/mkromfsimg.sh`` creates ``nsh_romfsimg.h``. It is not
+ automatically executed. If you want to change the configuration
+ settings associated with creating and mounting the ``/tmp``
+ directory, then it will be necessary to re-generate this header file
+ using the ``tools/mkromfsimg.sh`` script.
+
+ The behavior of this script depends upon several things:
+
+ #. The configuration settings then installed configuration.
+
+ #. The ``genromfs`` tool(available from
+ `http://romfs.sourceforge.net <http://romfs.sourceforge.net/>`__)
+ or included within the NuttX buildroot toolchain. There is also a
+ snapshot available in the NuttX tools repository
+ `here <https://bitbucket.org/nuttx/tools/src/master/genromfs-0.5.2.tar.gz>`__.
+
+ #. The ``xxd`` tool that is used to generate the C header files (xxd
+ is a normal part of a complete Linux or Cygwin installation,
+ usually as part of the ``vi`` package).
+
+ #. The file ``apps/nshlib/rcS.template`` (OR, if
+ ``CONFIG_NSH_ARCHROMFS`` is defined
+ ``include/arch/board/rcs.template``.
+
+ #. ``rcS.template``. The file ``apps/nshlib/rcS.template`` contains the
+ general form of the ``rcS`` file; configured values are plugged into
+ this template file to produce the final ``rcS`` file.
+
+ To generate a custom ``rcS`` file a copy of ``rcS.template`` needs to
+ be placed at ``tools/`` and changed according to the desired start-up
+ behaviour. Running ``tools/mkromfsimg.h`` creates ``nsh_romfsimg.h``
+ which needs to be copied to ``apps/nshlib`` OR if
+ ``CONFIG_NSH_ARCHROMFS`` is defined to
+ ``boards/<arch>/<chip>/<board>/include``.
+
+``rcS.template``. The default ``rcS.template``,
+``apps/nshlib/rcS.template``, generates the standard, default
+``apps/nshlib/nsh_romfsimg.h`` file.
+
+If ``CONFIG_NSH_ARCHROMFS`` is defined in the NuttX configuration file,
+then a custom, board-specific ``nsh_romfsimg.h`` file residing in
+``boards/<arch>/<chip>/<board>/include``\ will be used. NOTE when the OS
+is configured, ``include/arch/board`` will be linked to
+``boards/<arch>/<chip>/<board>/include``.
+
+All of the startup-behavior is contained in ``rcS.template``. The role
+of ``mkromfsimg.sh`` script is to (1) apply the specific configuration
+settings to ``rcS.template`` to create the final ``rcS``, and (2) to
+generate the header file ``nsh_romfsimg.h`` containing the ROMFS file
+system image. To do this, ``mkromfsimg.sh`` uses two tools that must be
+installed in your system:
+
+ #. The ``genromfs`` tool that is used to generate the ROMFS file system
+ image.
+
+ #. The ``xxd`` tool that is used to create the C header file.
diff --git a/content/docs/10.2.0/_sources/applications/nsh/login.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/login.rst.txt
new file mode 100644
index 0000000..01d5386
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/nsh/login.rst.txt
@@ -0,0 +1,261 @@
+***********
+Shell Login
+***********
+
+Enabling Shell Logins
+*********************
+
+NuttShell sessions can be protected by requiring that the user supply
+username and password credentials at the beginning of the session.
+Logins can be enabled for standard USB or serial consoles with::
+
+ CONFIG_NSH_CONSOLE_LOGIN=y
+
+Logins for Telnet sessions can be enabled separately with::
+
+ CONFIG_NSH_TELNET_LOGIN=y
+
+Logins can be enabled for either or both session types. On a successful
+login, the user will have access to the NSH session::
+
+ login: admin
+ password:
+ User Logged-in!
+
+ NuttShell (NSH)
+ nsh>
+
+After each failed login attempt, a delay can be set up. The purpose of
+this delay is to discourage attempts to crack the password by brute
+force. That delay is configured with::
+
+ CONFIG_NSH_LOGIN_FAILDELAY=0
+
+This setting provides the login failure delay in units of milliseconds.
+The system will pause this amount of time after each failed login
+attempt. After a certain number of failed login attempts, the session
+will be closed. That number is controlled by::
+
+ CONFIG_NSH_LOGIN_FAILCOUNT=3
+
+Verification of Credentials
+***************************
+
+There are three ways that NSH can be configured to verify user
+credentials at login time:
+
+ #. The simplest implementation simply uses fixed login credentials and
+ is selected with::
+
+ CONFIG_NSH_LOGIN_FIXED=y
+
+ The fixed login credentials are selected via::
+
+ CONFIG_NSH_LOGIN_USERNAME=admin
+ CONFIG_NSH_LOGIN_PASSWORD="Administrator"
+
+ This is not very flexible since there can be only one user and the
+ password is fixed in the FLASH image. This option is also not very
+ secure because a malicious user could get the password by just
+ looking at the ``.text`` strings in the flash image.
+
+ #. NSH can also be configured to defer the entire user credential
+ verification to platform-specific logic with this setting::
+
+ CONFIG_NSH_LOGIN_PLATFORM=y
+
+ In this case, NSH will call a platform-specific function to perform
+ the verification of user credentials. The platform-specific logic
+ must provide a function with the following prototype:
+
+ .. code-block:: c
+
+ int platform_user_verify(FAR const char *username, FAR const char *password);
+
+ which is prototyped an described in ``apps/include/nsh.h`` and which
+ may be included like:
+
+ .. code-block:: c
+
+ #include <apps/nsh.h>
+
+ An appropriate place to implement this function might be in the
+ directory ``apps/platform/<board>``.
+
+ #. A final option is to use a password file contained encrypted password
+ information. This final option is selected with the following and
+ described in more detail in the following paragraph::
+
+ CONFIG_NSH_LOGIN_PASSWD=y
+
+Password Files
+**************
+
+NuttX can also be configured to support a password file, by default at
+``/etc/passwd``. This option enables support for a password file::
+
+ CONFIG_NSH_LOGIN_PASSWD=y
+
+This options requires that you have selected ``CONFIG_FSUTILS_PASSWD=y``
+to enable the access methods of ``apps/fsutils/passwd``::
+
+ CONFIG_FSUTILS_PASSWD=y
+
+And this determines the location of the password file in a mounted
+volume::
+
+ CONFIG_FSUTILS_PASSWD_PATH="/etc/passwd"
+
+``/etc/passwd`` is a *standard* location, but you will need to locate
+the password where ever you have a mounted volume.
+
+The password file can be a fixed list of users in a ROMFS file system or
+a modifiable list maintained in a file in some writable file system. If
+the password file lies in a read-only file system like ROMFS, then you
+should also indicate that the password file is read-only.
+
+ CONFIG_FSUTILS_PASSWD_READONLY=y
+
+If the password file is writable, then additional NSH commands will be
+enabled to modify the password file: ```useradd`` <#cmduseradd>`__,
+```userdel`` <#cmduserdel>`__, and ```passwd`` <#cmdpasswd>`__. If you
+do not wish you have these commands available, then they should be
+specifically disabled.
+
+The password file logic requires a few additional settings:
+
+ #. The size of dynamically allocated and freed buffer that is used for
+ file access::
+
+ CONFIG_FSUTILS_PASSWD_IOBUFFER_SIZE=512
+
+ #. And the 128-bit encryption key. The password file currently uses the
+ Tiny Encryption Algorithm (TEA), but could be extended to use
+ something more powerful.
+
+ CONFIG_FSUTILS_PASSWD_KEY1=0x12345678
+ CONFIG_FSUTILS_PASSWD_KEY2=0x9abcdef0
+ CONFIG_FSUTILS_PASSWD_KEY3=0x12345678
+ CONFIG_FSUTILS_PASSWD_KEY4=0x9abcdef0
+
+Password can only be decrypted with access to this key. Note that this
+key could potentially be fished out of your FLASH image, but without any
+symbolic information, that would be a difficult job since the TEA KEY is
+binary data and not distinguishable from other binary data in the FLASH
+image.
+
+If the password file is enabled (``CONFIG_NSH_LOGIN_PASSWD=y``), then
+the fixed user credentials will not be used for the NSH session login.
+Instead, the password file will be consulted to verify the user
+credentials.
+
+Creating a Password File for a ROMFS File System
+************************************************
+
+What we want to accomplish is a ROMFS file system, mounted at ``/etc``
+and containing the password file, ``passwd`` like::
+
+ NuttShell (NSH)
+ nsh> ls -Rl /etc
+ /etc:
+ dr-xr-xr-x 0 .
+ dr-xr-xr-x 0 init.d/
+ -r--r--r-- 39 passwd
+ /etc/init.d:
+ dr-xr-xr-x 0 ..
+ -r--r--r-- 110 rcS
+ nsh>
+
+Where ``/etc/init.d/rcS`` is the start-up script; ``/etc/passwd`` is a
+the password file. Note that here we assume that you are already using a
+start-up script. We can then piggyback the passwd file into the ``/etc``
+file system already mounted for the NSH start up file as described above
+`above <#custinit>`__.
+
+I use the sim/nsh configuration to create a new password file, but other
+configurations could also be used. That configuration already supports a
+ROMFS file system, passwords, and login prompts. First, I make these
+changes to that configuration.
+
+ #. Disable logins:
+
+ .. code-block:: diff
+
+ - CONFIG_NSH_CONSOLE_LOGIN=y
+ + # CONFIG_NSH_CONSOLE_LOGIN is not set
+ # CONFIG_NSH_TELNET_LOGIN is not set
+
+ #. Move the password file to a write-able file system:
+
+ .. code-block:: diff
+
+ - CONFIG_FSUTILS_PASSWD_PATH="/etc/passwd"
+ + CONFIG_FSUTILS_PASSWD_PATH="/tmp/passwd"
+
+ #. Make the password file modifiable
+
+ .. code-block:: diff
+
+ - CONFIG_FSUTILS_PASSWD_READONLY=y
+ # CONFIG_FSUTILS_PASSWD_READONLY is not set
+
+Now rebuild the simulation. No login should be required to enter the
+shell and you should find the ```useradd`` <#cmduseradd>`__,
+```userdel`` <#cmduserdel>`__, and ```passwd`` <#cmdpasswd>`__ commands
+available in the help summary, provided that they are enabled. Make
+certain that the ``useradd`` command is not disabled::
+
+ # CONFIG_NSH_DISABLE_USERADD is not set
+
+Use the NSH ```useradd`` <#cmduseradd>`__ command to add new uses with
+new user passwords like::
+
+ nsh> useradd <username> <password>
+
+Do this as many times as you would like. Each time that you do this a
+new entry with an encrypted password will be added to the ``passwd``
+file at ``/tmp/passwd``. You can see the content of the password file
+like::
+
+ nsh> cat /tmp/passwd
+
+When you are finished, you can simply copy the ``/tmp/passwd`` content
+from the ``cat`` command and paste it into an editor. Make sure to
+remove any carriage returns that may have ended up on the file if you
+are using Windows.
+
+Then create/re-create the ``nsh_romfsimg.h`` file as described below.
+
+ #. The content on the ``nsh_romfsimg.h`` header file is generated from a
+ template directory structure. Create the directory structure::
+
+ mkdir etc
+ mkdir etc/init.d
+
+ And copy your existing startup script into ``etc/init.c`` as ``rcS``.
+
+ #. Save your new password file in the ``etc/`` directory as ``passwd``.
+
+ #. Create the new ROMFS image::
+
+ genromfs -f romfs_img -d etc -V MyVolName
+
+ #. Convert the ROMFS image to a C header file::
+
+ xxd -i romfs_img >nsh_romfsimg.h
+
+ #. Edit ``nsh_romfsimg.h``: Mark both data definitions as ``const`` so
+ that the data will be stored in FLASH.
+
+ #. Edit nsh_romfsimg.h, mark both data definitions as ``const`` so that
+ that will be stored in FLASH.
+
+There is a good example of how to do this in the NSH simulation
+configuration at
+`boards/sim/sim/sim/configs/nsh <https://github.com/apache/incubator-nuttx/blob/master/boards/sim/sim/sim/configs/nsh/>`__.
+The ROMFS support files are provided at
+`boards/sim/include <https://github.com/apache/incubator-nuttx/blob/master/boards/sim/sim/sim/include/>`__
+and the
+`README.txt <https://github.com/apache/incubator-nuttx/blob/master/boards/sim/sim/sim/README.txt>`__
+file at the location provides detailed information about creating and
+modifying the ROMFS file system.
diff --git a/content/docs/10.2.0/_sources/applications/nsh/nsh.rst.txt b/content/docs/10.2.0/_sources/applications/nsh/nsh.rst.txt
new file mode 100644
index 0000000..f89b794
--- /dev/null
+++ b/content/docs/10.2.0/_sources/applications/nsh/nsh.rst.txt
@@ -0,0 +1,361 @@
+.. include:: /substitutions.rst
+.. _nsh:
+
+********
+Overview
+********
+
+**The NSH Library**. The ``apps/nshlib`` sub-directory contains the
+NuttShell (NSH) library. This library can easily to linked to
+produce a NSH application (See as an example
+``apps/examples/nsh``). The NSH Library provides a simple shell
+application for NuttX.
+
+Console/NSH Front End
+*********************
+
+**NSH Consoles**. Using settings in the configuration file, NSH may be
+configured to use (1) the serial stdin/out, (2) a USB serial
+device (such as CDC/ACM), or (3) a telnet connection as the
+console. Or, perhaps even all at once since or BOTH. An indefinite
+number of telnet sessions are supported.
+
+**Start-Up prompt**. When NSH is started, you will see the a welcome
+message such the following on the selected console:
+
+.. code-block::
+
+ NuttShell (NSH)
+ nsh>
+
+The greeting may also include NuttX versioning information if you
+are using a versioned copy of NuttX. ``nsh>`` is the NSH prompt
+and indicates that you may enter a command from the console.
+
+**USB console startup**. When using a USB console, the start-up
+sequence differs a little: In this case, you are required to press
+*ENTER* three times. Then NSH prompt will appear as described
+above. This is required for the following reasons:
+
+ #. This assures that the USB connection is stable. The USB
+ connection may be made, broken, and re-established a few times
+ if the USB cable is not yet fully seated. Waiting for *ENTER*
+ to be pressed three times assures that the connection is
+ stable.
+ #. The establishment of the connection is two step process: First,
+ the USB serial connection is made with the host PC. Then the
+ application that uses the serial interface is started on the
+ host. When the serial connection is established on the host,
+ the host operating system may send several *AT* modem commands
+ to the host depending upon how the host serial port is
+ configured. By waiting for *ENTER* to be pressed three
+ consecutive times, all of these modem commands will go to the
+ bit-bucket and will not be interpreted as NSH command input.
+ #. Similarly, in the second step when the applications is started,
+ there may be additional *AT* modem commands sent out the serial
+ port. Most serial terminal programs will do this unless they
+ are specifically configured to suppress the modem command
+ output. Waiting for the *ENTER* input eliminates the invalid
+ command errors from both (2) and (3).
+ #. Finally, if NSH did not wait for some positive indication that
+ the serial terminal program is up and running, then the output
+ of the NSH greeting and initial NSH prompt would be lost.
+
+**Extended Command Line Editing**. By default, NuttX uses a simple
+command line editor that allows command entry after the ``nsh>``
+and supports only the *backspace* key for editing. However, a more
+complete command line editor can be selected by setting
+``CONFIG_NSH_CLE=y`` in the NuttX configuration file. When that
+option is selected, the following EMACS-like line editing commands
+are supported:
+
+===================== ================================================
+Key Binding Editor Action
+===================== ================================================
+``^A`` Move cursor to start of the line
+``^B`` Move left one character
+``^D`` or *Del* Delete a single character at the cursor position
+``^E`` Move cursor to end of current line
+``^F`` Move right one character
+``^H`` or *Backspace* Delete character, left (backspace)
+``^K`` Delete to the end of the line
+``^U`` Delete the entire line
+===================== ================================================
+
+Command Overview
+****************
+
+**Simple, Re-directed, and Background Commands**. The NuttShell
+(NSH) is a simple shell application. NSH supports the following
+commands forms:
+
+=============================== ======================================
+Simple command ``<cmd>``
+Command with re-directed output ``<cmd> > <file> <cmd> >> <file>``
+Background command ``<cmd> &``
+Re-directed background command ``<cmd> > <file> & <cmd> >> <file> &``
+=============================== ======================================
+
+Where:
+
+ * ``<cmd>`` is any one of the simple commands listed later.
+ * ``<file>`` is the full or relative path to any writable object in the file system name space (file or character driver). Such objects will be referred to simply as files throughout this document.
+
+``nice`` **'d Background Commands**. NSH executes at the
+mid-priority (128). Backgrounded commands can be made to execute
+at higher or lower priorities using ``nice``::
+
+ [nice [-d <niceness>>]] <cmd> [> <file>|>> <file>] [&]
+
+Where ``<niceness>`` is any value between -20 and 19 where lower
+(more negative values) correspond to higher priorities. The
+default niceness is 10.
+
+**Multiple commands per line**. NSH will accept multiple commands
+per command line with each command separated with the semi-colon
+character (;).
+
+**Optional Syntax Extensions** Because these features commit
+significant resources, they are disabled by default.
+
+ - ``CONFIG_NSH_CMDPARMS``: If selected, then the output from
+ commands, from file applications, and from NSH built-in
+ commands can be used as arguments to other commands. The entity
+ to be executed is identified by enclosing the command line in
+ back quotes. For example,
+
+ .. code-block:: bash
+
+ set FOO myprogram $BAR
+
+ Will execute the program named ``myprogram`` passing it the
+ value of the environment variable ``BAR``. The value of the
+ environment variable ``FOO`` is then set output of
+ ``myprogram`` on ``stdout``.
+
+ - ``CONFIG_NSH_ARGCAT``: Support concatenation of strings
+ with environment variables or command output. For example:
+
+ .. code-block:: bash
+
+ set FOO XYZ
+ set BAR 123
+ set FOOBAR ABC_${FOO}_${BAR}
+
+ would set the environment variable ``FOO`` to ``XYZ``, ``BAR``
+ to ``123`` and ``FOOBAR`` to ``ABC_XYZ_123``. If
+ ``CONFIG_NSH_ARGCAT`` is not selected, then a slightly smaller
+ FLASH footprint results but then also only simple environment
+ variables like ``$FOO`` can be used on the command line.
+
+ - ``CONFIG_NSH_QUOTE``: Enables back-slash quoting of certain
+ characters within the command. This option is useful for the
+ case where an NSH script is used to dynamically generate a new
+ NSH script. In that case, commands must be treated as simple
+ text strings without interpretation of any special characters.
+ Special characters such as ``$``, :literal:`\``, ``"``, and
+ others must be retained intact as part of the test string. This
+ option is currently only available is ``CONFIG_NSH_ARGCAT`` is
+ also selected.
+
+Conditional Command Execution
+*****************************
+
+An ``if-then[-else]-fi`` construct is also supported in order to
+support conditional execution of commands. This works from the
+command line but is primarily intended for use within NSH scripts
+(see the ```sh`` <#cmdsh>`__ command). The syntax is as follows:
+
+.. code-block:: bash
+
+ if [!] <cmd>
+ then
+ [sequence of <cmd>]
+ else
+ [sequence of <cmd>]
+ fi
+
+Where ``<cmd>`` is a `simple command <#cmdoverview>`__. The
+command success value of zero is treated true; a non-zero command
+failure value is treated false. The ```test`` <#cmdtest>`__
+command is frequently used for comparisons.
+
+Looping
+*******
+
+**Looping Constructs**. ``while-do-done`` and ``until-do-done``
+looping constructs are also supported. These work from the command
+line but are primarily intended for use within NSH scripts (see
+the ```sh`` <#cmdsh>`__ command).
+
+ - ``while-do-done``: Execute ``[sequence of <cmd>]`` as long
+ as ``<cmd>`` has an exit status of zero. The syntax is as
+ follows:
+
+ .. code-block:: bash
+
+ while <cmd>
+ do
+ [sequence of <cmd>]
+ done
+
+ - ``until-do-done``: Execute ``[sequence of <cmd>]`` as long
+ as ``<cmd>`` has a non-zero exit status. The syntax is as
+ follows:
+
+ .. code-block::
+
+ until <cmd>
+ do
+ [sequence of <cmd>]
+ done
+
+Where ``<cmd>`` is a `simple command <#cmdoverview>`__. The
+command success value of zero is treated true; a non-zero command
+failure value is treated false. The ```test`` <#cmdtest>`__
+command is frequently used for comparisons.
+
+**The** ``break`` **Command**. A ``break`` command is also supported.
+The ``break`` command is only meaningful within the body of the a
+``while`` or ``until`` loop, between the ``do`` and ``done`` tokens.
+If the ``break`` command is executed within the body of a loop,
+the loop will immediately terminate and execution will continue
+with the next command immediately following the ``done`` token.
+
+Built-In Variables
+******************
+
+====== ====================================================
+``$?`` The result of the last simple command execution. |br|
+ On backgrounded commands, this variable holds only |br|
+ the result of spawning the background command.
+====== ====================================================
+
+Current Working Directory
+*************************
+
+``cd`` **and** ``pwd``. All path arguments to commands may be
+either an absolute path or a path relative to the current working
+directory. The current working directory is set using the
+``cd`` command and can be queried either by using the
+``pwd`` command or by using the ``echo $PWD`` command.
+
+Environment Variables
+*********************
+
+========== ================================================
+``PATH`` The default path in the file systems to look |br|
+ for executable, binary programs working directory
+``PWD`` The current working directory
+``OLDPWD`` The previous working directory
+========== ================================================
+
+NSH Start-Up Script
+*******************
+
+**NSH Start-Up Script**. NSH supports options to provide a start
+up script for NSH. In general this capability is enabled with
+``CONFIG_NSH_ROMFSETC``, but has several other related
+configuration options as described with the `NSH-specific
+configuration settings <#nshconfiguration>`__. This capability
+also depends on:
+
+ - ``CONFIG_DISABLE_MOUNTPOINT`` not set
+ - ``CONFIG_FS_ROMFS`` enabled
+
+**Default Start-Up Behavior**. The implementation that is provided
+is intended to provide great flexibility for the use of Start-Up
+files. This paragraph will discuss the general behavior when all
+of the configuration options are set to the default values.
+
+In this default case, enabling ``CONFIG_NSH_ROMFSETC`` will cause
+NSH to behave as follows at NSH startup time:
+
+ - NSH will create a read-only RAM disk (a ROM disk), containing a
+ tiny ROMFS file system containing the following::
+
+ `--init.d/
+ `-- rcS
+
+ Where rcS is the NSH start-up script.
+
+ - NSH will then mount the ROMFS file system at ``/etc``,
+ resulting in::
+
+ |--dev/
+ | `-- ram0
+ `--etc/
+ `--init.d/
+ `-- rcS
+
+ - By default, the contents of rcS script are::
+
+ # Create a RAMDISK and mount it at XXXRDMOUNTPOINTXXX
+
+ mkrd -m 1 -s 512 1024
+ mkfatfs /dev/ram1
+ mount -t vfat /dev/ram1 /tmp
+
+ - NSH will execute the script at ``/etc/init.d/rcS`` at start-up
+ (before the first NSH prompt). After execution of the script,
+ the root FS will look like::
+
+ |--dev/
+ | |-- ram0
+ | `-- ram1
+ |--etc/
+ | `--init.d/
+ | `-- rcS
+ `--tmp/
+
+**Modifying the ROMFS Image**. The contents of the ``/etc``
+directory are retained in the file ``apps/nshlib/nsh_romfsimg.h``
+OR, if ``CONFIG_NSH_ARCHROMFS`` is defined,
+``include/arch/board/rcs.template``). In order to modify the
+start-up behavior, there are three things to study:
+
+ #. **Configuration Options.** The additional
+ ``CONFIG_NSH_ROMFSETC`` configuration options discussed with
+ the other `NSH-specific configuration
+ settings <#nshconfiguration>`__.
+ #. `tools/mkromfsimg.sh`` **Script**. The script
+ ``tools/mkromfsimg.sh`` creates ``nsh_romfsimg.h``. It is not
+ automatically executed. If you want to change the configuration
+ settings associated with creating and mounting the ``/tmp``
+ directory, then it will be necessary to re-generate this header
+ file using the ``tools/mkromfsimg.sh`` script.
+
+ The behavior of this script depends upon three things:
+
+ - The configuration settings then installed configuration.
+ - The ``genromfs`` tool (available from
+ http://romfs.sourceforge.net).
+ - The file ``apps/nshlib/rcS.template`` (OR, if
+ ``CONFIG_NSH_ARCHROMFS`` is defined
+ ``include/arch/board/rcs.template``.
+
+ #. ``rcS.template``: The file ``apps/nshlib/rcS.template``
+ contains the general form of the ``rcS`` file; configured
+ values are plugged into this template file to produce the final
+ ``rcS`` file.
+
+.. note::
+ ``apps/nshlib/rcS.template`` generates the standard,
+ default ``nsh_romfsimg.h`` file. If ``CONFIG_NSH_ARCHROMFS`` is
+ defined in the NuttX configuration file, then a custom,
+ board-specific ``nsh_romfsimg.h`` file residing in the
+ ``boards/<arch>/<chip>/<board>/include`` directory will be used.
+ NOTE when the OS is configured, ``include/arch/board`` will be
+ linked to ``boards/<arch>/<chip>/<board>/include``.
+
+All of the startup-behavior is contained in ``rcS.template``. The
+role of ``mkromfsimg.sh`` is to (1) apply the specific
+configuration settings to ``rcS.template`` to create the final
+``rcS``, and (2) to generate the header file ``nsh_romfsimg.h``
+containing the ROMFS file system image.
+
+**Further Information**. See the section on `Customizing the
+NuttShell <#customizingnsh>`__ for additional, more detailed
+information about the NSH start-up script and how to modify it.
+
+
diff --git a/content/docs/10.2.0/_sources/components/binfmt.rst.txt b/content/docs/10.2.0/_sources/components/binfmt.rst.txt
new file mode 100644
index 0000000..9b692b7
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/binfmt.rst.txt
@@ -0,0 +1,360 @@
+.. _binfmt:
+
+=============
+Binary Loader
+=============
+
+The purpose of a *binary loader* is to load and
+execute modules in various *binary formats* that reside in a file
+system. Loading refers instantiating the binary module in some fashion,
+usually copy all or some of the binary module into memory and then
+linking the module with other components. In most architectures, it is
+the base FLASH code that is the primary component that the binary module
+must link with because that is where the RTOS and primary tasks reside.
+Program modules can then be executed after they have been loaded.
+
+**Binary Formats**. The binary loader provides generic support for
+different binary formats. It supports a *registration interface* that
+allows the number of support binary formats to be loaded at run time.
+Each binary format provides a common, interface for use by the binary
+loader. When asked to load a binary, the binary loader will query each
+registered binary format, providing it with the path of the binary
+object to be loaded. The binary loader will stop when first binary
+format the recognizes the binary object and successfully loads it or
+when all registered binary formats have attempt loading the binary
+object and failed.
+
+At present, the following binary formats are support by NuttX:
+
+ - **ELF**. Standard ELF formatted files.
+ - **NXFLAT**. NuttX NXFLAT formatted files. More information about the
+ NXFLAT binary format can be found in the :ref:`NXFLAT
+ documentation <nxflat>`.
+
+**Executables and Libraries** The generic binary loader logic does not
+care what it is that it being loaded. It could load an executable
+program or a library. There are no strict rules, but a library will tend
+to export symbols and a program will tend to import symbols: The program
+will use the symbols exported by the library. However, at this point in
+time, none of the supported binary formats support exporting of symbols.
+
+**binfmt**. In the NuttX source code, the short name ``binfmt`` is used
+to refer to the NuttX binary loader. This is the name of the directory
+containing the binary loader and the name of the header files and
+variables used by the binary loader.
+
+The name ``binfmt`` is the same name used by the Linux binary loader.
+However, the NuttX binary loader is an independent development and
+shares nothing with the Linux binary loader other the same name and the
+same basic functionality.
+
+Binary Loader Interface
+=======================
+
+Header Files
+------------
+
+The interface to the binary loader is described in the header file
+``include/nuttx/binfmt/binfmt.h``.
+A brief summary of the data structurs and interfaces prototyped in that
+header file are listed below.
+
+Data Structures
+---------------
+
+When a binary format registers with the binary loader, it provides a
+pointer to a write-able instance of :c:struct:`binfmt_s`.
+
+.. c:struct:: binfmt_s
+
+ .. code-block:: c
+
+ struct binfmt_s
+ {
+ FAR struct binfmt_s *next; /* Supports a singly-linked list */
+ int (*load)(FAR struct binary_s *bin); /* Verify and load binary into memory */
+ };
+
+
+ The ``load`` method is used to load the binary format into memory. It
+ returns either ``OK`` (0) meaning that the binary object was loaded
+ successfully, or a negated ``errno`` indicating why the object was not
+ loaded.
+
+.. c:struct:: binary_s
+
+ The type ``struct binary_s`` is use both to (1) describe the binary
+ object to be loaded, and if successfully loaded, (2) to provide
+ information about where and how the binary object was loaded. That
+ structure is shown below:
+
+ .. code-block:: c
+
+ struct symtab_s;
+ struct binary_s
+ {
+ /* Information provided to the loader to load and bind a module */
+
+ FAR const char *filename; /* Full path to the binary to be loaded */
+ FAR const char **argv; /* Argument list */
+ FAR const struct symtab_s *exports; /* Table of exported symbols */
+ int nexports; /* The number of symbols in exports[] */
+
+ /* Information provided from the loader (if successful) describing the
+ * resources used by the loaded module.
+ */
+
+ main_t entrypt; /* Entry point into a program module */
+ FAR void *mapped; /* Memory-mapped, address space */
+ FAR void *alloc[BINFMT_NALLOC]; /* Allocated address spaces */
+
+ /* Constructors/destructors */
+
+ #ifdef CONFIG_BINFMT_CONSTRUCTORS
+ FAR binfmt_ctor_t *ctors; /* Pointer to a list of constructors */
+ FAR binfmt_dtor_t *dtors; /* Pointer to a list of destructors */
+ uint16_t nctors; /* Number of constructors in the list */
+ uint16_t ndtors; /* Number of destructors in the list */
+ #endif
+
+ /* Address environment.
+ *
+ * addrenv - This is the handle created by up_addrenv_create() that can be
+ * used to manage the tasks address space.
+ */
+
+ #ifdef CONFIG_ARCH_ADDRENV
+ group_addrenv_t addrenv; /* Task group address environment */
+ #endif
+
+ size_t mapsize; /* Size of the mapped address region (needed for munmap) */
+
+ /* Start-up information that is provided by the loader, but may be modified
+ * by the caller between load_module() and exec_module() calls.
+ */
+
+ uint8_t priority; /* Task execution priority */
+ size_t stacksize; /* Size of the stack in bytes (unallocated) */
+ };
+
+ Where the types ``binfmt_ctor_t`` and ``binfmt_dtor_t`` define the type
+ of one C++ constructor or destructor:
+
+ .. code-block:: c
+
+ typedef FAR void (*binfmt_ctor_t)(void);
+ typedef FAR void (*binfmt_dtor_t)(void);
+
+Function Interfaces
+-------------------
+
+Binary format management
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. c:function:: int register_binfmt(FAR struct binfmt_s *binfmt)
+
+ Register a loader for a binary format.
+
+ :return: This is a NuttX internal function so it follows the convention
+ that 0 (OK) is returned on success and a negated errno is returned on
+ failure.
+
+.. c:function:: int unregister_binfmt(FAR struct binfmt_s *binfmt)
+
+ Register a loader for a binary format.
+
+ :return:
+ This is a NuttX internal function so it follows the convention
+ that 0 (OK) is returned on success and a negated errno is returned on
+ failure.
+
+Basic module management
+~~~~~~~~~~~~~~~~~~~~~~~
+
+.. c:function:: int load_module(FAR struct binary_s *bin)
+
+ Load a module into memory, bind it to an exported symbol take,
+ and prep the module for execution.
+
+ :param bin:
+ The ``filename`` field will be used
+ in order to locate the module to be loaded from the file system.
+ The filename must be the full, absolute path to the file to be executed
+ unless ``CONFIG_LIBC_ENVPATH`` is defined. In that case, filename may be
+ a relative path; a set of candidate absolute paths will be generated using
+ the ``PATH`` environment variable and ``load_module()`` will attempt to load each
+ file that is found at those absolute paths.
+
+ :return:
+ This is a NuttX internal function so it follows the convention that 0 (``OK``)
+ is returned on success and a negated ``errno`` is returned on failure.
+
+.. c:function:: int unload_module(FAR struct binary_s *bin)
+
+ Unload a (non-executing) module from memory. If the module has been started
+ (via :c:func:`exec_module`) and has not exited, calling this will be fatal.
+
+ However, this function must be called after the module exist. How this is
+ done is up to your logic. Perhaps you register it to be called by :c:func:`on_exit`?
+
+ :return:
+ This is a NuttX internal function so it follows the convention that 0 (``OK``)
+ is returned on success and a negated ``errno`` is returned on failure.
+
+.. c:function:: int exec_module(FAR const struct binary_s *bin);
+
+ Execute a module that has been loaded into memory by :c:func:`load_module`.
+
+ :return:
+ This is a NuttX internal function so it follows the convention that 0 (``OK``)
+ is returned on success and a negated ``errno`` is returned on failure.
+
+.. tip::
+ The function :c:func:`exec` is a convenience function that wraps
+ :c:func:`load_module` and :c:func:`exec_module` into one call.
+
+``PATH`` traversal logic
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. c:function:: ENVPATH_HANDLE envpath_init(void);
+
+ Initialize for the traversal of each value in the ``PATH`` variable. The
+ usage is sequence is as follows:
+
+ #. Call :c:func:`envpath_init` to initialize for the traversal.
+ ``envpath_init()`` will return an opaque handle that can then be
+ provided to :c:func:`envpath_next` and :c:func:`envpath_release`.
+ #. Call :c:func:`envpath_next` repeatedly to examine every file that lies in
+ the directories of the ``PATH`` variable.
+ #. Call :c:func:`envpath_release` to free resources set aside by
+ :c:func:`envpath_init`.
+
+ :return:
+ On success, :c:func:`envpath_init` return a non-``NULL``, opaque handle
+ that may subsequently be used in calls to :c:func:`envpath_next` and
+ :c:func:`envpath_release`. On error, a ``NULL`` handle value will be returned.
+ The most likely cause of an error would be that there is no value
+ associated with the ``PATH`` variable.
+
+.. c:function:: FAR char *envpath_next(ENVPATH_HANDLE handle, FAR const char *relpath)
+
+ Traverse all possible values in the PATH variable in attempt to find the
+ full path to an executable file when only a relative path is provided.
+
+ :param handle: The handle value returned by :c:func:`envpath_init`.
+ :param relpath: The relative path to the file to be found.
+
+ :return:
+ On success, a non-``NULL`` pointer to a null-terminated string is provided.
+ This is the full path to a file that exists in the file system.
+ This function will verify that the file exists (but will not verify that it is marked executable).
+
+ .. note::
+ The string pointer return in the success case points to allocated memory.
+ This memory must be freed by the called by calling :c:func:`kmm_free`.
+
+ ``NULL`` relpath from any absolute path in the ``PATH`` variable.
+ In this case, there is no point in calling :c:func:`envpath_next` further;
+ :c:func:`envpath_release` must be called to release resources set aside by
+ :c:func:`envpath_init`.
+
+.. c:function:: void envpath_release(ENVPATH_HANDLE handle)
+
+Release all resources set aside by envpath_init when the
+handle value was created. The handle value is invalid on
+return from this function. Attempts to all :c:func:`envpath_next`
+or :c:func:`envpath_release` with such a stale handle will result
+in undefined (i.e., not good) behavior.
+
+ :param handle: The handle value returned by :c:func:`envpath_init`.
+
+Symbol Tables
+=============
+
+**Symbol Tables**. Symbol tables are lists of name value mappings: The
+name is a string that identifies a symbol, and the value is an address
+in memory where the symbol of that name has been positioned. In most
+NuttX architectures symbol tables are required, as a minimum, in order
+to dynamically link the loaded binary object with the base code on
+FLASH. Since the binary object was separately built and separately
+linked, these symbols will appear as *undefined* symbols in the binary
+object. The binary loader will use the symbol table to look up the
+symbol by its name and to provide the address associated with the symbol
+as needed to perform the dynamic linking of the binary object to the
+base FLASH code.
+
+Some toolchains will prefix symbols with an underscore. To support these
+toolchains the ``CONFIG_SYMTAB_DECORATED`` setting may be defined. This
+will cause a leading underscore to be ignored on *undefined* symbols
+during dynamic linking.
+
+Symbol Table Header Files
+-------------------------
+
+The interface to the symbol table logic is described in the header file
+``include/nuttx/binfmt/symtab.h``.
+A brief summary of the data structurs and interfaces prototyped in that
+header file are listed below.
+
+Symbol Table Data Structures
+----------------------------
+
+.. c:struct:: symbtab_s
+
+ Describes one entry in the symbol table.
+
+ .. code-block:: c
+
+ struct symtab_s
+ {
+ FAR const char *sym_name; /* A pointer to the symbol name string */
+ FAR const void *sym_value; /* The value associated with the string */
+ };
+
+ A symbol table is a fixed size array of ``struct symtab_s``. The
+ information is intentionally minimal and supports only:
+
+ #. Function pointers as ``sym_values``. Of other kinds of values need to
+ be supported, then typing information would also need to be included
+ in the structure.
+ #. Fixed size arrays. There is no explicit provisional for dynamically
+ adding or removing entries from the symbol table (realloc might be
+ used for that purpose if needed). The intention is to support only
+ fixed size arrays completely defined at compilation or link time.
+
+Symbol Table Function Interfaces
+--------------------------------
+
+.. c:function:: FAR const struct symtab_s *symtab_findbyname(FAR const struct symtab_s *symtab, FAR const char *name, int nsyms);
+
+ Find the symbol in the symbol table with the matching name.
+ The implementation will be linear with respect to ``nsyms`` if
+ ``CONFIG_SYMTAB_ORDEREDBYNAME`` is not selected, and logarithmic
+ if it is.
+
+ :return:
+ A reference to the symbol table entry if an entry with
+ the matching name is found; NULL is returned if the entry is not found.
+
+.. c:function:: FAR const struct symtab_s *symtab_findbyvalue(FAR const struct symtab_s *symtab, FAR void *value, int nsyms);
+
+ Find the symbol in the symbol table whose value closest
+ (but not greater than), the provided value. This version assumes
+ that table is not ordered with respect to symbol value and, hence,
+ access time will be linear with respect to ``nsyms``.
+
+ :return:
+ A reference to the symbol table entry if an entry with the matching
+ value is found; ``NULL`` is returned if the entry is not found.
+
+Configuration Variables
+=======================
+
+ - ``CONFIG_BINFMT_DISABLE``: By default, support for loadable binary formats is built.
+ This logic may be suppressed be defining this setting.
+ - ``CONFIG_BINFMT_CONSTRUCTORS``: Build in support for C++ constructors in loaded modules.
+ - ``CONFIG_SYMTAB_ORDEREDBYNAME``: Symbol tables are order by name (rather than value).
+ - ``CONFIG_SYMTAB_DECORATED``: Symbols will have a leading underscore in object files.
+
+Additional configuration options may be required for the each enabled
+binary format.
diff --git a/content/docs/10.2.0/_sources/components/drivers/block/index.rst.txt b/content/docs/10.2.0/_sources/components/drivers/block/index.rst.txt
new file mode 100644
index 0000000..f82ca26
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/block/index.rst.txt
@@ -0,0 +1,41 @@
+====================
+Block Device Drivers
+====================
+
+Block device drivers have these properties:
+
+- ``include/nuttx/fs/fs.h``. All structures and APIs needed
+ to work with block drivers are provided in this header file.
+
+- ``struct block_operations``. Each block device driver must
+ implement an instance of ``struct block_operations``. That
+ structure defines a call table with the following methods:
+
+- ``int register_blockdriver(const char *path, const struct block_operations *bops, mode_t mode, void *priv);``.
+ Each block driver registers itself by calling
+ ``register_blockdriver()``, passing it the ``path`` where it
+ will appear in the :ref:`pseudo file system <file_system_overview>` and
+ it's initialized instance of ``struct block_operations``.
+
+- **User Access**. Users do not normally access block drivers
+ directly, rather, they access block drivers indirectly through
+ the ``mount()`` API. The ``mount()`` API binds a block driver
+ instance with a file system and with a mountpoint. Then the
+ user may use the block driver to access the file system on the
+ underlying media. *Example*: See the ``cmd_mount()``
+ implementation in ``apps/nshlib/nsh_fscmds.c``.
+
+- **Accessing a Character Driver as a Block Device**. See the
+ loop device at ``drivers/loop.c``. *Example*: See the
+ ``cmd_losetup()`` implementation in
+ ``apps/nshlib/nsh_fscmds.c``.
+
+- **Accessing a Block Driver as Character Device**. See the
+ Block-to-Character (BCH) conversion logic in ``drivers/bch/``.
+ *Example*: See the ``cmd_dd()`` implementation in
+ ``apps/nshlib/nsh_ddcmd.c``.
+
+- **Examples**. ``drivers/loop.c``,
+ ``drivers/mmcsd/mmcsd_spi.c``, ``drivers/ramdisk.c``, etc.
+
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/analog.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/analog.rst.txt
new file mode 100644
index 0000000..f4714d8
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/analog.rst.txt
@@ -0,0 +1,55 @@
+========================
+Analog (ADC/DAC) Drivers
+========================
+
+The NuttX analog drivers are split into two parts:
+
+#. An "upper half", generic driver that provides the common analog
+ interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level controls to implement the analog functionality.
+
+- General header files for the NuttX analog drivers reside in
+ ``include/nuttx/analog/``. These header files includes both the
+ application level interface to the analog driver as well as the
+ interface between the "upper half" and "lower half" drivers.
+- Common analog logic and share-able analog drivers reside in the
+ ``drivers/analog/``.
+- Platform-specific drivers reside in
+ ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>* directory
+ for the specific processor *<architecture>* and for the
+ specific *<chip>* analog peripheral devices.
+
+ADC Drivers
+-----------
+
+- ``include/nuttx/analog/adc.h``. All structures and APIs needed
+ to work with ADC drivers are provided in this header file. This
+ header file includes:
+
+ #. Structures and interface descriptions needed to develop a
+ low-level, architecture-specific, ADC driver.
+ #. To register the ADC driver with a common ADC character
+ driver.
+ #. Interfaces needed for interfacing user programs with the
+ common ADC character driver.
+
+- ``drivers/analog/adc.c``. The implementation of the common ADC
+ character driver.
+
+DAC Drivers
+-----------
+
+- ``include/nuttx/analog/dac.h``. All structures and APIs needed
+ to work with DAC drivers are provided in this header file. This
+ header file includes:
+
+ #. Structures and interface descriptions needed to develop a
+ low-level, architecture-specific, DAC driver.
+ #. To register the DAC driver with a common DAC character
+ driver.
+ #. Interfaces needed for interfacing user programs with the
+ common DAC character driver.
+
+- ``drivers/analog/dac.c``. The implementation of the common DAC
+ character driver.
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/can.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/can.rst.txt
new file mode 100644
index 0000000..b08ebb0
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/can.rst.txt
@@ -0,0 +1,36 @@
+===========
+CAN Drivers
+===========
+
+NuttX supports only a very low-level CAN driver. This driver
+supports only the data exchange and does not include any
+high-level CAN protocol. The NuttX CAN driver is split into two
+parts:
+
+#. An "upper half", generic driver that provides the common CAN
+ interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level timer controls to implement the CAN functionality.
+
+Files supporting CAN can be found in the following locations:
+
+- **Interface Definition**. The header file for the NuttX CAN
+ driver resides at ``include/nuttx/can/can.h``. This header file
+ includes both the application level interface to the CAN driver
+ as well as the interface between the "upper half" and "lower
+ half" drivers. The CAN module uses a standard character driver
+ framework.
+- **"Upper Half" Driver**. The generic, "upper half" CAN driver
+ resides at ``drivers/can.c``.
+- **"Lower Half" Drivers**. Platform-specific CAN drivers reside
+ in ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>*
+ directory for the specific processor *<architecture>* and for
+ the specific *<chip>* CAN peripheral devices.
+
+**Usage Note**: When reading from the CAN driver multiple messages
+may be returned, depending on (1) the size the returned can
+messages, and (2) the size of the buffer provided to receive CAN
+messages. *Never assume that a single message will be returned*...
+if you do this, *you will lose CAN data* under conditions where
+your read buffer can hold more than one small message. Below is an
+example about how you should think of the CAN read operation:
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/foc.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/foc.rst.txt
new file mode 100644
index 0000000..e694cc0
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/foc.rst.txt
@@ -0,0 +1,48 @@
+====================
+FOC Driver Interface
+====================
+
+Field Oriented Control (FOC) is a common technique to control
+either synchronous or asynchronous alternating current machines.
+The main goal of FOC is to control direct current (Id) and
+quadrature current (Iq) in powered device.
+
+The device on the kernel side is responsible for the following:
+
+#. update PWM duty cycles
+#. return ADC current samples
+#. synchronize user-space with PWM events
+
+The NuttX FOC driver is split into two parts:
+
+#. An "upper half", generic driver that provides the common FOC
+ interface to application level code,
+#. A "lower half", platform-specific driver that implements
+ the low-level logic to implement the FOC functionality
+
+Files supporting FOC can be found in the following locations:
+
+- ``include/nuttx/motor/foc/foc.h``.
+ "Upper-half" FOC interface available for the user-space.
+- ``include/nuttx/motor/foc/foc_lower.h``.
+ "Lower-half" FOC interface.
+- ``drivers/motor/foc/foc_dev.c``.
+ The generic "upper half" FOC driver.
+
+The majority of the functionality available to the application
+is implemented in driver ioctl calls. Supported ioctl commands:
+
+- ``MTRIOC_START`` - Start the FOC device, arg: none.
+- ``MTRIOC_STOP`` - Stop the FOC device, arg: none.
+- ``MTRIOC_GET_STATE`` - Get the FOC device state,
+ arg: ``struct foc_state_s`` pointer.
+ This is a blocking operation that is used to synchronize the user space
+ application with ADC samples.
+- ``MTRIOC_CLEAR_FAULT`` - Clear the FOC device fault state,
+ arg: none.
+- ``MTRIOC_SET_PARAMS`` - Set the FOC device operation parameters,
+ arg: ``struct foc_params_s`` pointer.
+- ``MTRIOC_SET_CONFIG`` - Set the FOC device configuration,
+ arg: ``struct foc_cfg_s`` pointer.
+- ``MTRIOC_GET_INFO`` - Get the FOC device info,
+ arg: ``struct foc_info_s`` pointer.
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/index.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/index.rst.txt
new file mode 100644
index 0000000..f0411bb
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/index.rst.txt
@@ -0,0 +1,68 @@
+.. _chardev:
+
+========================
+Character Device Drivers
+========================
+
+Character device drivers have these properties:
+
+- ``include/nuttx/fs/fs.h``. All structures and APIs needed
+ to work with character drivers are provided in this header
+ file.
+
+- ``struct file_operations``. Each character device driver
+ must implement an instance of ``struct file_operations``. That
+ structure defines a call table with the following methods:
+
+- ``int register_driver(const char *path, const struct file_operations *fops, mode_t mode, void *priv);``.
+ Each character driver registers itself by calling
+ ``register_driver()``, passing it the ``path`` where it will
+ appear in the :ref:`pseudo file system <file_system_overview>` and it's
+ initialized instance of ``struct file_operations``.
+
+- **User Access**. After it has been registered, the character
+ driver can be accessed by user code using the standard driver
+ operations including
+ ``open()``, ``close()``, ``read()``, ``write()``, etc.
+
+- **Specialized Character Drivers**. Within the common character
+ driver framework, there are different specific varieties of
+ *specialized* character drivers. The unique requirements of the
+ underlying device hardware often mandates some customization of
+ the character driver. These customizations tend to take the
+ form of:
+
+ - Device-specific ``ioctl()`` commands used to performed
+ specialized operations on the device. These ``ioctl()`` will
+ be documented in header files under ``include/nuttx`` that
+ detail the specific device interface.
+ - Specialized I/O formats. Some devices will require that
+ ``read()`` and/or ``write()`` operations use data conforming
+ to a specific format, rather than a plain stream of bytes.
+ These specialized I/O formats will be documented in header
+ files under ``include/nuttx`` that detail the specific
+ device interface. The typical representation of the I/O
+ format will be a C structure definition.
+
+ The specialized character drivers support by NuttX are
+ documented in the following paragraphs.
+
+- **Examples**: ``drivers/dev_null.c``, ``drivers/fifo.c``,
+ ``drivers/serial.c``, etc.
+
+.. toctree::
+ :caption: Supported Drivers
+
+ serial.rst
+ touchscreen.rst
+ analog.rst
+ pwm.rst
+ can.rst
+ quadrature.rst
+ timer.rst
+ rtc.rst
+ watchdog.rst
+ keypad.rst
+ note.rst
+ foc.rst
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/keypad.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/keypad.rst.txt
new file mode 100644
index 0000000..63e0446
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/keypad.rst.txt
@@ -0,0 +1,143 @@
+=======================
+Keyboard/Keypad Drivers
+=======================
+
+**Keypads vs. Keyboards** Keyboards and keypads are really the
+same devices for NuttX. A keypad is thought of as simply a
+keyboard with fewer keys.
+
+**Special Commands**. In NuttX, a keyboard/keypad driver is simply
+a character driver that may have an (optional) encoding/decoding
+layer on the data returned by the character driver. A keyboard may
+return simple text data (alphabetic, numeric, and punctuation) or
+control characters (enter, control-C, etc.) when a key is pressed.
+We can think about this the "normal" keyboard data stream.
+However, in addition, most keyboards support actions that cannot
+be represented as text or control data. Such actions include
+things like cursor controls (home, up arrow, page down, etc.),
+editing functions (insert, delete, etc.), volume controls, (mute,
+volume up, etc.) and other special functions. In this case, some
+special encoding may be required to multiplex the normal text data
+and special command key press data streams.
+
+**Key Press and Release Events** Sometimes the time that a key is
+released is needed by applications as well. Thus, in addition to
+normal and special key press events, it may also be necessary to
+encode normal and special key release events.
+
+**Encoding/Decoding** Layer. An optional encoding/decoding layer
+can be used with the basic character driver to encode the keyboard
+events into the text data stream. The function interfaces that
+comprise that encoding/decoding layer are defined in the header
+file ``include/nuttx/input/kbd_code.h``. These functions provide
+an matched set of (a) driver encoding interfaces, and (b)
+application decoding interfaces.
+
+#. **Driver Encoding Interfaces**. These are interfaces used by
+ the keyboard/keypad driver to encode keyboard events and data.
+
+ - ``kbd_press()``
+
+ **Function Prototype:**
+
+ **Description:**
+
+ **Input Parameters:**
+
+ - ``ch``: The character to be added to the output stream.
+ - ``stream``: An instance of ``lib_outstream_s`` to perform
+ the actual low-level put operation.
+
+ **Returned Value:**
+
+ - ``kbd_release()``
+
+ **Function Prototype:**
+
+ **Description:**
+
+ **Input Parameters:**
+
+ - ``ch``: The character associated with the key that was
+ released.
+ - ``stream``: An instance of ``lib_outstream_s`` to perform
+ the actual low-level put operation.
+
+ **Returned Value:**
+
+ - ``kbd_specpress()``
+
+ **Function Prototype:**
+
+ **Description:**
+
+ **Input Parameters:**
+
+ - ``keycode``: The command to be added to the output
+ stream. The enumeration ``enum kbd_keycode_e keycode``
+ identifies all commands known to the system.
+ - ``stream``: An instance of ``lib_outstream_s`` to perform
+ the actual low-level put operation.
+
+ **Returned Value:**
+
+ - ``kbd_specrel()``
+
+ **Function Prototype:**
+
+ **Description:**
+
+ **Input Parameters:**
+
+ - ``keycode``: The command to be added to the output
+ stream. The enumeration ``enum kbd_keycode_e keycode``
+ identifies all commands known to the system.
+ - ``stream``: An instance of ``lib_outstream_s`` to perform
+ the actual low-level put operation.
+
+ **Returned Value:**
+
+#. **Application Decoding Interfaces**. These are user interfaces
+ to decode the values returned by the keyboard/keypad driver.
+
+ - ``kbd_decode()``
+
+ **Function Prototype:**
+
+ **Description:**
+
+ **Input Parameters:**
+
+ - ``stream``: An instance of ``lib_instream_s`` to perform
+ the actual low-level get operation.
+ - ``pch``: The location to save the returned value. This
+ may be either a normal, character code or a special
+ command (i.e., a value from ``enum kbd_getstate_s``.
+ - ``state``: A user provided buffer to support parsing.
+ This structure should be cleared the first time that
+ ``kbd_decode()`` is called.
+
+ **Returned Value:**
+
+ - ``KBD_PRESS`` (0)**: Indicates the successful receipt
+ of normal, keyboard data. This corresponds to a keypress
+ event. The returned value in ``pch`` is a simple byte of
+ text or control data.
+ - ``KBD_RELEASE`` (1)**: Indicates a key release event.
+ The returned value in ``pch`` is the byte of text or
+ control data corresponding to the released key.
+ - ``KBD_SPECPRESS`` (2)**: Indicates the successful
+ receipt of a special keyboard command. The returned value
+ in ``pch`` is a value from ``enum kbd_getstate_s``.
+ - ``KBD_SPECREL`` (3)**: Indicates a special command key
+ release event. The returned value in ``pch`` is a value
+ from ``enum kbd_getstate_s``.
+ - ``KBD_ERROR`` (``EOF``)**: An error has getting the
+ next character (reported by the ``stream``). Normally
+ indicates the end of file.
+
+**I/O Streams**. Notice the use of the abstract I/O streams in
+these interfaces. These stream interfaces are defined in
+``include/nuttx/streams.h``.
+
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/note.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/note.rst.txt
new file mode 100644
index 0000000..ca27d22
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/note.rst.txt
@@ -0,0 +1,296 @@
+=====================
+Note Driver Interface
+=====================
+
+Note driver is the interface to access the instrumentation data.
+The following devices are provided.
+
+- :ref:`notectl`
+- :ref:`noteram`
+
+.. _notectl:
+
+Notectl Device (``/dev/notectl``)
+=================================
+
+ ``/dev/notectl`` is the device to control an instrumentation filter in NuttX kernel.
+ The device has only ioctl function to control the filter.
+
+``/dev/notectl`` Header Files
+-----------------------------
+
+ The header file ``include/nuttx/note/notectl_driver.h`` provides the interface definitions of the device.
+
+``/dev/notectl`` Data Structures
+--------------------------------
+
+.. c:struct:: note_filter_mode_s
+
+ .. code-block:: c
+
+ struct note_filter_mode_s
+ {
+ unsigned int flag; /* Filter mode flag */
+ #ifdef CONFIG_SMP
+ unsigned int cpuset; /* The set of monitored CPUs */
+ #endif
+ };
+
+ - ``flag`` : Filter mode flag. The bitwise OR of the following defines are available.
+
+ .. c:macro:: NOTE_FILTER_MODE_FLAG_ENABLE
+
+ Enable instrumentation
+
+ .. c:macro:: NOTE_FILTER_MODE_FLAG_SYSCALL
+
+ Enable syscall instrumentation
+
+ .. c:macro:: NOTE_FILTER_MODE_FLAG_IRQ
+
+ Enable IRQ instrumentaiton
+
+ - ``cpuset`` : (SMP only) Monitor only CPUs in the bitset. Bit 0=CPU0, Bit1=CPU1, etc.
+
+.. c:struct:: note_filter_syscall_s
+
+ .. code-block:: c
+
+ struct note_filter_syscall_s
+ {
+ uint8_t syscall_mask[];
+ };
+
+ - ``syscall_mask`` : A bitmap array of the syscall filter. If a bit is set, the corresponding syscall is not recorded.
+ The following helper macros are available:
+
+ .. c:macro:: NOTE_FILTER_SYSCALLMASK_SET(nr, s)
+
+ Set syscall number `nr` as masked. `s` specifies the variable of `struct note_filter_syscall_s`
+
+ .. c:macro:: NOTE_FILTER_SYSCALLMASK_CLR(nr, s)
+
+ Set syscall number `nr` as unmasked.
+
+ .. c:macro:: NOTE_FILTER_SYSCALLMASK_ISSET(nr, s)
+
+ Check whether syscall number `nr` is masked or not. True if masked.
+
+ .. c:macro:: NOTE_FILTER_SYSCALLMASK_ZERO(s)
+
+ Clear all masks.
+
+.. c:struct:: note_filter_irq_s
+
+ .. code-block:: c
+
+ struct note_filter_irq_s
+ {
+ uint8_t irq_mask[];
+ };
+
+ - ``irq_mask`` : A bitmap array of the IRQ filter. If a bit is set, the corresponding IRQ is not recorded.
+ The following helper macros are available:
+
+ .. c:macro:: NOTE_FILTER_IRQMASK_SET(nr, s)
+
+ Set IRQ number `nr` as masked. `s` specifies the variable of `struct note_filter_irq_s`
+
+ .. c:macro:: NOTE_FILTER_IRQMASK_CLR(nr, s)
+
+ Set IRQ number `nr` as unmasked.
+
+ .. c:macro:: NOTE_FILTER_IRQMASK_ISSET(nr, s)
+
+ Check whether IRQ number `nr` is masked or not. True if masked.
+
+ .. c:macro:: NOTE_FILTER_IRQMASK_ZERO(s)
+
+ Clear all masks.
+
+``/dev/notectl`` Ioctls
+-----------------------
+
+.. c:macro:: NOTECTL_GETMODE
+
+ Get note filter mode
+
+ :argument: A writable pointer to :c:struct:`note_filter_mode_s`
+
+ :return: If success, 0 (``OK``) is returned and current note filter mode is stored into the given pointer.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTECTL_SETMODE
+
+ Set note filter mode
+
+ :argument: A read-only pointer to :c:struct:`note_filter_mode_s`
+
+ :return: If success, 0 (``OK``) is returned and the given filter mode is set as the current settings.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTECTL_GETSYSCALLFILTER
+
+ Get syscall filter setting
+
+ :argument: A writable pointer to :c:struct:`note_filter_syscall_s`
+
+ :return: If success, 0 (``OK``) is returned and current syscall filter mode is stored into the given pointer.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTECTL_SETSYSCALLFILTER
+
+ Set syscall filter setting
+
+ :argument: A read-only pointer to :c:struct:`note_filter_syscall_s`
+
+ :return: If success, 0 (``OK``) is returned and the given syscall filter mode is set as the current settings.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTECTL_GETIRQFILTER
+
+ Get IRQ filter setting
+
+ :argument: A writable pointer to :c:struct:`note_filter_irq_s`
+
+ :return: If success, 0 (``OK``) is returned and current IRQ filter mode is stored into the given pointer.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTECTL_SETIRQFILTER
+
+ Set IRQ filter setting
+
+ :argument: A read-only pointer to :c:struct:`note_filter_irq_s`
+
+ :return: If success, 0 (``OK``) is returned and the given IRQ filter mode is set as the current settings.
+ If failed, a negated ``errno`` is returned.
+
+
+.. _noteram:
+
+Noteram Device (``/dev/note``)
+==============================
+
+ ``/dev/note`` is the device to get the trace (instrumentation) data.
+ The device has read function to get the data and ioctl function to control the buffer mode.
+
+
+``/dev/note`` Header Files
+--------------------------
+
+ The header file ``include/nuttx/note/noteram_driver.h`` provides the interface definitions of the device.
+
+``/dev/note`` Data Structures
+--------------------------------
+
+.. c:struct:: noteram_get_taskname_s
+
+ .. code-block:: c
+
+ struct noteram_get_taskname_s
+ {
+ pid_t pid;
+ char taskname[CONFIG_TASK_NAME_SIZE + 1];
+ };
+
+ - ``pid`` : Task ID to get the task name.
+
+ - ``taskname`` : The task name string corresponding to given pid.
+
+``/dev/note`` Ioctls
+--------------------
+
+.. c:macro:: NOTERAM_CLEAR
+
+ Clear all contents of the circular buffer
+
+ :argument: Ignored
+
+ :return: Always returns 0.
+
+.. c:macro:: NOTERAM_GETMODE
+
+ Get overwrite mode
+
+ :argument: A writable pointer to ``unsigned int``.
+ The overwrite mode takes one of the following values.
+
+ .. c:macro:: NOTERAM_MODE_OVERWRITE_DISABLE
+
+ Overwrite mode is disabled. When the buffer is full, accepting the data will be stopped.
+
+ .. c:macro:: NOTERAM_MODE_OVERWRITE_ENABLE
+
+ Overwrite mode is enabled.
+
+ .. c:macro:: NOTERAM_MODE_OVERWRITE_OVERFLOW
+
+ Overwrite mode is disabled and the buffer is already full.
+
+ :return: If success, 0 (``OK``) is returned and current overwrite mode is stored into the given pointer.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTERAM_SETMODE
+
+ Set overwrite mode
+
+ :argument: A read-only pointer to ``unsigned int``.
+
+ :return: If success, 0 (``OK``) is returned and the given overwriter mode is set as the current settings.
+ If failed, a negated ``errno`` is returned.
+
+.. c:macro:: NOTERAM_GETTASKNAME
+
+ Get task name string
+
+ :argument: A writable pointer to :c:struct:`noteram_get_taskname_s`
+
+ :return: If success, 0 (``OK``) is returned and the task name corresponding to given pid is stored into the given pointer.
+ If failed, a negated ``errno`` is returned.
+
+Filter control APIs
+===================
+
+The following APIs are the functions to control note filters directly.
+These are kernel APIs and application can use them only in FLAT build.
+
+The header file ``include/nuttx/sched_note.h`` is needed to use the following APIs.
+
+API description
+---------------
+
+.. c:function:: void sched_note_filter_mode(struct note_filter_mode_s *oldm, struct note_filter_mode_s *newm);
+
+ Set and get note filter mode.
+ (Same as :c:macro:`NOTECTL_GETMODE` / :c:macro:`NOTECTL_SETMODE` ioctls)
+
+ :param oldm: A writable pointer to :c:struct:`note_filter_mode_s` to get current filter mode.
+ If 0, no data is written.
+ :param newm: A read-only pointer to :c:struct:`note_filter_mode_s` which holds the new filter mode.
+ If 0, the filter mode is not updated.
+
+ :return: None
+
+.. c:function:: void sched_note_filter_syscall(struct note_filter_syscall_s *oldf, struct note_filter_syscall_s *newf);
+
+ Set and get syscall filter setting.
+ (Same as :c:macro:`NOTECTL_GETSYSCALLFILTER` / :c:macro:`NOTECTL_SETSYSCALLFILTER` ioctls)
+
+ :param oldf: A writable pointer to :c:struct:`note_filter_syscall_s` to get current syscall filter setting.
+ If 0, no data is written.
+ :param newf: A read-only pointer to :c:struct:`note_filter_syscall_s` of the new syscall filter setting.
+ If 0, the setting is not updated.
+
+ :return: None
+
+.. c:function:: void sched_note_filter_irq(struct note_filter_irq_s *oldf, struct note_filter_irq_s *newf);
+
+ Set and get IRQ filter setting.
+ (Same as :c:macro:`NOTECTL_GETIRQFILTER` / :c:macro:`NOTECTL_SETIRQFILTER` ioctls)
+
+ :param oldf: A writable pointer to :c:struct:`note_filter_irq_s` to get current IRQ filter setting.
+ If 0, no data is written.
+ :param newf: A read-only pointer to :c:struct:`note_filter_irq_s` of the new IRQ filter setting.
+ If 0, the setting is not updated.
+
+ :return: None
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/pwm.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/pwm.rst.txt
new file mode 100644
index 0000000..6222637
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/pwm.rst.txt
@@ -0,0 +1,34 @@
+===========
+PWM Drivers
+===========
+
+For the purposes of this driver, a PWM device is any device that
+generates periodic output pulses of controlled frequency and pulse
+width. Such a device might be used, for example, to perform
+pulse-width modulated output or frequency/pulse-count modulated
+output (such as might be needed to control a stepper motor).
+
+The NuttX PWM driver is split into two parts:
+
+#. An "upper half", generic driver that provides the common PWM
+ interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level timer controls to implement the PWM functionality.
+
+Files supporting PWM can be found in the following locations:
+
+- **Interface Definition**. The header file for the NuttX PWM
+ driver reside at ``include/nuttx/timers/pwm.h``. This header
+ file includes both the application level interface to the PWM
+ driver as well as the interface between the "upper half" and
+ "lower half" drivers. The PWM module uses a standard character
+ driver framework. However, since the PWM driver is a device
+ control interface and not a data transfer interface, the
+ majority of the functionality available to the application is
+ implemented in driver ioctl calls.
+- **"Upper Half" Driver**. The generic, "upper half" PWM driver
+ resides at ``drivers/timers/pwm.c``.
+- **"Lower Half" Drivers**. Platform-specific PWM drivers reside
+ in ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>*
+ directory for the specific processor *<architecture>* and for
+ the specific *<chip>* PWM peripheral devices.
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/quadrature.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/quadrature.rst.txt
new file mode 100644
index 0000000..51d5372
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/quadrature.rst.txt
@@ -0,0 +1,29 @@
+Quadrature Encoder Drivers
+==========================
+
+NuttX supports a low-level, two-part Quadrature Encoder driver.
+
+#. An "upper half", generic driver that provides the common
+ Quadrature Encoder interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level timer controls to implement the Quadrature Encoder
+ functionality.
+
+Files supporting the Quadrature Encoder can be found in the
+following locations:
+
+- **Interface Definition**. The header file for the NuttX
+ Quadrature Encoder driver reside at
+ ``include/nuttx/sensors/qencoder.h``. This header file includes
+ both the application level interface to the Quadrature Encoder
+ driver as well as the interface between the "upper half" and
+ "lower half" drivers. The Quadrature Encoder module uses a
+ standard character driver framework.
+- **"Upper Half" Driver**. The generic, "upper half" Quadrature
+ Encoder driver resides at ``drivers/sensors/qencoder.c``.
+- **"Lower Half" Drivers**. Platform-specific Quadrature Encoder
+ drivers reside in
+ ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>* directory
+ for the specific processor *<architecture>* and for the
+ specific *<chip>* Quadrature Encoder peripheral devices.
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/rtc.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/rtc.rst.txt
new file mode 100644
index 0000000..f913e45
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/rtc.rst.txt
@@ -0,0 +1,25 @@
+RTC Drivers
+===========
+
+NuttX supports a low-level, two-part RealTime Clock (RTC) driver.
+
+#. An "upper half", generic driver that provides the common RTC
+ interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level timer controls to implement the RTC functionality.
+
+Files supporting the RTC driver can be found in the following
+locations:
+
+- **Interface Definition**. The header file for the NuttX RTC
+ driver reside at ``include/nuttx/timers/rtc.h``. This header
+ file includes both the application level interface to the RTC
+ driver as well as the interface between the "upper half" and
+ "lower half" drivers. The RTC driver uses a standard character
+ driver framework.
+- **"Upper Half" Driver**. The generic, "upper half" RTC driver
+ resides at ``drivers/timers/rtc.c``.
+- **"Lower Half" Drivers**. Platform-specific RTC drivers reside
+ in ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>*
+ directory for the specific processor *<architecture>* and for
+ the specific *<chip>* RTC peripheral devices.
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/serial.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/serial.rst.txt
new file mode 100644
index 0000000..f45e45a
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/serial.rst.txt
@@ -0,0 +1,29 @@
+=====================
+Serial Device Drivers
+=====================
+
+- ``include/nuttx/serial/serial.h``. All structures and APIs
+ needed to work with serial drivers are provided in this header
+ file.
+
+- ``struct uart_ops_s``. Each serial device driver must
+ implement an instance of ``struct uart_ops_s``. That structure
+ defines a call table with the following methods:
+
+- ``int uart_register(FAR const char *path, FAR uart_dev_t *dev);``.
+ A serial driver may register itself by calling
+ ``uart_register()``, passing it the ``path`` where it will
+ appear in the :ref:`pseudo file system <file_system_overview>` and it's
+ initialized instance of ``struct uart_ops_s``. By convention,
+ serial device drivers are registered at paths like
+ ``/dev/ttyS0``, ``/dev/ttyS1``, etc. See the
+ ``uart_register()`` implementation in ``drivers/serial.c``.
+
+- **User Access**. Serial drivers are, ultimately, normal
+ `character drivers <#chardrivers>`__ and are accessed as other
+ character drivers.
+
+- **Examples**: ``arch/arm/src/stm32/stm32_serial.c``,
+ ``arch/arm/src/lpc214x/lpc214x_serial.c``,
+ ``arch/z16/src/z16f/z16f_serial.c``, etc.
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/timer.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/timer.rst.txt
new file mode 100644
index 0000000..4ca1256
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/timer.rst.txt
@@ -0,0 +1,333 @@
+Timer Drivers
+=============
+
+Files supporting the timer driver can be found in the following
+locations:
+
+- **Interface Definition**. The header file for the NuttX timer
+ driver reside at ``include/nuttx/timers/timer.h``. This header
+ file includes both the application level interface to the timer
+ driver as well as the interface between the "upper half" and
+ "lower half" drivers. The timer driver uses a standard
+ character driver framework.
+- **"Upper Half" Driver**. The generic, "upper half" timer driver
+ resides at ``drivers/timers/timer.c``.
+- **"Lower Half" Drivers**. Platform-specific timer drivers
+ reside in ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>*
+ directory for the specific processor *<architecture>* and for
+ the specific *<chip>* timer peripheral devices.
+
+There are two ways to enable Timer Support along with the Timer Example. The first is faster and simpler. Just run the following command to use a ready config file with timer support and example included. You need to check if there's a timer config file for your specific chip. You may check it at the specific board's path: ``/boards/<arch>/<chip>/<variant>/config``.
+
+.. code-block:: console
+
+ $ ./tools/configure.sh <variant>:timer
+
+And the second way is creating your own config file. To do so, follow the next instructions.
+
+Enabling the Timer Support and Example in ``menuconfing``
+----------------------------------------------------------
+
+ 1. Select Timer Instances
+
+ To select these timers browse in the ``menuconfig`` using the following path:
+
+ Go into menu :menuselection:`System Type --> <Chip> Peripheral Selection` and press :kbd:`Enter`.
+
+ Then select one or more timers according to availability.
+
+ 2. Enable the Timer Support
+
+ Go into menu :menuselection:`Device Drivers --> Timer Driver Support` and press :kbd:`Enter`. Then enable:
+
+ - [x] Timer Support
+ - [x] Timer Arch Implementation
+
+ 3. Include the Timer Example
+
+ Go into menu :menuselection:`Application Configuration --> Examples` and press :kbd:`Enter`. Then select the Timer Example.
+
+ - [x] Timer example
+
+ Below the option, it is possible to manually configure some parameters as the standard timer device path, the timeout, the sample rate in which the counter will be read, the number of samples to be executed, and other parameters.
+
+Timer Example
+--------------
+
+The previously selected example will basically consult the timer status, set a timer alarm interval, set a timer signal handler function to be notified at the alarm, which only increments a variable, and then it will start the timer. The application will periodically consult the timer status at the sample rate previously configured through the ``menuconfig`` to follow the time left until the timer expires. After the samples have been read, the application stops de timer.
+
+The `example code <https://github.com/apache/incubator-nuttx-apps/blob/master/examples/timer/timer_main.c>`_ may be explored, its path is at ``/examples/timer/timer_main.c`` in the apps' repository.
+
+In NuttX, the timer driver is a character driver and when a chip supports multiple timers, each one is accessible through its respective file in ``/dev`` directory. Each timer is registered using a unique numeric identifier (i.e. ``/dev/timer0``, ``/dev/timer1``, ...).
+
+Use the following command to run the example:
+
+.. code-block:: console
+
+ `nsh> timer`
+
+This command will use the timer 0. To use the others, specify it through a parameter (where x is the timer number):
+
+.. code-block:: console
+
+ `nsh> timer -d /dev/timerx`
+
+Application Level Interface
+----------------------------
+
+The first necessary thing to be done in order to use the timer driver in an application is to include the header file for the NuttX timer driver. It contains the Application Level Interface to the timer driver. To do so, include:
+
+.. code-block:: c
+
+ #include <nuttx/timers/timer.h>
+
+
+At an application level, the timer functionalities may be accessed through ``ioctl`` systems calls. The available ``ioctl`` commands are:
+
+ * :c:macro:`TCIOC_START`
+ * :c:macro:`TCIOC_STOP`
+ * :c:macro:`TCIOC_GETSTATUS`
+ * :c:macro:`TCIOC_SETTIMEOUT`
+ * :c:macro:`TCIOC_NOTIFICATION`
+ * :c:macro:`TCIOC_MAXTIMEOUT`
+
+These ``ioctl`` commands internally call lower-half layer operations and the parameters are forwarded to these ops through the ``ioctl`` system call. The return of a system call is the return of an operation.
+These ``struct timer_ops_s`` keeps pointers to the implementation of each operation. Following is the struct.
+
+.. c:struct:: timer_ops_s
+.. code-block:: c
+
+ struct timer_ops_s
+ {
+ /* Required methods *******************************************************/
+
+ /* Start the timer, resetting the time to the current timeout */
+
+ CODE int (*start)(FAR struct timer_lowerhalf_s *lower);
+
+ /* Stop the timer */
+
+ CODE int (*stop)(FAR struct timer_lowerhalf_s *lower);
+
+ /* Get the current timer status */
+
+ CODE int (*getstatus)(FAR struct timer_lowerhalf_s *lower,
+ FAR struct timer_status_s *status);
+
+ /* Set a new timeout value (and reset the timer) */
+
+ CODE int (*settimeout)(FAR struct timer_lowerhalf_s *lower,
+ uint32_t timeout);
+
+ /* Call the NuttX INTERNAL timeout callback on timeout.
+ * NOTE: Providing callback==NULL disable.
+ * NOT to call back into applications.
+ */
+
+ CODE void (*setcallback)(FAR struct timer_lowerhalf_s *lower,
+ CODE tccb_t callback, FAR void *arg);
+
+ /* Any ioctl commands that are not recognized by the "upper-half" driver
+ * are forwarded to the lower half driver through this method.
+ */
+
+ CODE int (*ioctl)(FAR struct timer_lowerhalf_s *lower, int cmd,
+ unsigned long arg);
+
+ /* Get the maximum supported timeout value */
+
+ CODE int (*maxtimeout)(FAR struct timer_lowerhalf_s *lower,
+ FAR uint32_t *maxtimeout);
+ };
+
+
+
+Since ``ioctl`` system calls expect a file descriptor, before using these commands, it's necessary to open the timer device special file in order to get a file descriptor. The following snippet demonstrates how to do so:
+
+.. code-block:: c
+
+ /* Open the timer device */
+
+ printf("Open %s\n", devname);
+
+ fd = open(devname, O_RDONLY);
+ if (fd < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to open %s: %d\n",
+ devname, errno);
+ return EXIT_FAILURE;
+ }
+
+.. c:macro:: TCIOC_START
+
+The ``TCIOC_START`` command calls the ``start`` operation, which is described below.
+
+.. c:function:: int start(void)
+
+ The start operation configures the timer, enables the interrupt if ``TCIOC_NOTIFICATION`` has already been called and finally starts the timer.
+
+ :return: A Linux System Error Code for failing or 0 for success.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ /* Start the timer */
+
+ printf("Start the timer\n");
+
+ ret = ioctl(fd, TCIOC_START, 0);
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to start the timer: %d\n", errno);
+ close(fd);
+ return EXIT_FAILURE;
+ }
+
+.. c:macro:: TCIOC_STOP
+
+The ``TCIOC_STOP`` command calls the ``stop`` operation, which is described below.
+
+.. c:function:: int stop(void)
+
+ The stop operation stops the timer and disables the interrupt.
+
+ :return: A Linux System Error Code for failing or 0 for success.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ /* Stop the timer */
+
+ printf("\nStop the timer\n");
+
+ ret = ioctl(fd, TCIOC_STOP, 0);
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to stop the timer: %d\n", errno);
+ close(fd);
+ return EXIT_FAILURE;
+ }
+
+.. c:macro:: TCIOC_GETSTATUS
+
+The ``TCIOC_GETSTATUS`` command calls the ``getstatus`` operation, which is described below.
+
+.. c:function:: int getstatus(FAR struct timer_status_s *status)
+
+ The getstatus operation gathers the timer's current information.
+
+ :param status: A writable pointer to a struct ``timer_status_s``. This struct contains 3 fields: ``flags`` (``uint32_t``), ``timeout`` (``uint32_t``) and ``timeleft`` (``uint32_t``). Bit 0 from `flags` indicates the timer's status, 1 indicates that the timer is running, zero it is stopped. Bit 1 from `flags` indicates if there's a callback registered. The `timeout` indicates the time interval that was configured to trigger an alarm, it is in microseconds. The `timeleft` interval indica [...]
+
+ :return: A Linux System Error Code for failing or 0 for success.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ /* Get timer status */
+
+ ret = ioctl(fd, TCIOC_GETSTATUS, (unsigned long)((uintptr_t)&status));
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to get timer status: %d\n", errno);
+ close(fd);
+ exit(EXIT_FAILURE);
+ }
+
+ /* Print the timer status */
+
+ printf(" flags: %08lx timeout: %lu timeleft: %lu\n",
+ (unsigned long)status.flags, (unsigned long)status.timeout,
+ (unsigned long)status.timeleft);
+
+.. c:macro:: TCIOC_SETTIMEOUT
+
+The ``TCIOC_SETTIMEOUT`` command calls the ``settimeout`` operation, which is described below.
+
+.. c:function:: int settimeout(uint32_t timeout)
+
+ The getstatus operation sets a timeout interval to trigger the alarm and then trigger an interrupt. It defines the timer interval in which the handler will be called.
+
+ :param timeout: An argument of type ``uint32_t`` with the timeout value in microseconds.
+
+ :return: A Linux System Error Code for failing or 0 for success.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ /* Set the timer interval */
+
+ printf("Set timer interval to %lu\n",
+ (unsigned long)CONFIG_EXAMPLES_TIMER_INTERVAL);
+
+ ret = ioctl(fd, TCIOC_SETTIMEOUT, CONFIG_EXAMPLES_TIMER_INTERVAL);
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to set the timer interval: %d\n", errno);
+ close(fd);
+ return EXIT_FAILURE;
+ }
+
+.. c:macro:: TCIOC_NOTIFICATION
+
+The ``TCIOC_NOTIFICATION`` is used to configure the timer callback to notify the application via a signal when the timer expires. This command calls the ``setcallback`` operation. Which will not be described here, since the application does not set a callback directly. Instead, the user should configure a signal handler to catch notifications, and then, configure a timer notifier to notify and to signal the previously configured signal handler. For a better performance, a separate pthrea [...]
+
+In any case, this command expects a read-only pointer to a struct `timer_notify_s`. This struct contains 2 fields: ``pid`` (``pid_t``), that indicates the ID of the task/thread to receive the signal and ``event`` (``struct sigevent``), which describes the way a task will be notified.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ printf("Configure the notification\n");
+
+ notify.pid = getpid();
+ notify.event.sigev_notify = SIGEV_SIGNAL;
+ notify.event.sigev_signo = CONFIG_EXAMPLES_TIMER_SIGNO;
+ notify.event.sigev_value.sival_ptr = NULL;
+
+ ret = ioctl(fd, TCIOC_NOTIFICATION, (unsigned long)((uintptr_t)¬ify));
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to set the timer handler: %d\n", errno);
+ close(fd);
+ return EXIT_FAILURE;
+ }
+
+
+.. c:macro:: TCIOC_MAXTIMEOUT
+
+The ``TCIOC_MAXTIMEOUT`` command calls the ``maxtimeout`` operation, which is described below.
+
+.. c:function:: int maxtimeout(uint32_t *status)
+
+ The maxtimeout operation gets the maximum timeout value that can be configured.
+
+ :param maxtimeout: A writable pointer to a variable of ``uint32_t`` type in which the value will be stored.
+ :return: A Linux System Error Code for failing or 0 for success.
+
+This command may be used like so:
+
+.. code-block:: c
+
+ /* Get the maximum timer timeout */
+
+ printf("Get the maximum timer timeout\n");
+
+ ret = ioctl(fd, TCIOC_MAXTIMEOUT, (uint32_t*)(&max_timeout));
+ if (ret < 0)
+ {
+ fprintf(stderr, "ERROR: Failed to reat the timer's maximum timeout: %d\n", errno);
+ close(fd);
+ return EXIT_FAILURE;
+ }
+
+ /* Print the maximum supported timeout */
+
+ printf("Maximum supported timeout: %" PRIu32 "\n", max_timeout);
+
+
+Those snippets were taken from the Example which provides a great resource to demonstrate how to use those ``ioctl`` commands.
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/touchscreen.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/touchscreen.rst.txt
new file mode 100644
index 0000000..70876d5
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/touchscreen.rst.txt
@@ -0,0 +1,38 @@
+==========================
+Touchscreen Device Drivers
+==========================
+
+NuttX supports a two-part touchscreen driver architecture.
+
+#. An "upper half", generic driver that provides the common
+ touchscreen interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level touchscreen controls to implement the touchscreen
+ functionality.
+
+Files supporting the touchscreen controller (TSC) driver can be
+found in the following locations:
+
+- **Interface Definition**. The header files for NuttX
+ touchscreen drivers reside in the
+ ``include/nuttx/include/input`` directory. The interface
+ between the touchscreen controller "upper half" and "lower
+ half" drivers are *not* common, but vary from
+ controller-to-controller. Because of this, each touchscreen
+ driver has its own unique header file that describes the "upper
+ half"/"lower half" interface in that directory. The application
+ level interface to each touchscreen driver, on the other hand,
+ *is* the same for each touchscreen driver and is described
+ ``include/nuttx/include/input/touchscreen.h``. The touchscreen
+ driver uses a standard character driver framework but read
+ operations return specially formatted data.
+- **"Upper Half" Driver**. The controller-specific, "upper half"
+ touchscreen drivers reside in the directory ``drivers/input``.
+- **"Lower Half" Drivers**. Platform-specific touchscreen drivers
+ reside in either: (1) The
+ ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>* directory
+ for the processor architectures that have build in touchscreen
+ controllers or (2) the
+ ``boards/``\ *<arch>*\ ``/``\ *<chip>*\ ``/``\ *<board>*\ ``/src/``
+ directory for boards that use an external touchscreen
+ controller chip.
diff --git a/content/docs/10.2.0/_sources/components/drivers/character/watchdog.rst.txt b/content/docs/10.2.0/_sources/components/drivers/character/watchdog.rst.txt
new file mode 100644
index 0000000..287aa45
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/character/watchdog.rst.txt
@@ -0,0 +1,204 @@
+======================
+Watchdog Timer Drivers
+======================
+
+NuttX supports a low-level, two-part watchdog timer driver.
+
+#. An "upper half", generic driver that provides the common
+ watchdog timer interface to application level code, and
+#. A "lower half", platform-specific driver that implements the
+ low-level timer controls to implement the watchdog timer
+ functionality.
+
+Files supporting the watchdog timer driver can be found in the
+following locations:
+
+- **Interface Definition**. The header file for the NuttX
+ watchdog timer driver reside at
+ ``include/nuttx/timers/watchdog.h``. This header file includes
+ both the application level interface to the watchdog timer
+ driver as well as the interface between the "upper half" and
+ "lower half" drivers. The watchdog timer driver uses a standard
+ character driver framework.
+- **"Upper Half" Driver**. The generic, "upper half" watchdog
+ timer driver resides at ``drivers/timers/watchdog.c``.
+- **"Lower Half" Drivers**. Platform-specific watchdog timer
+ drivers reside in
+ ``arch/``\ *<architecture>*\ ``/src/``\ *<hardware>* directory
+ for the specific processor *<architecture>* and for the
+ specific *<chip>* watchdog timer peripheral devices.
+
+There are two ways to enable Watchdog Timer Support along with the Watchdog Example. The first is faster and simpler. Just run the following command to use a ready config file with watchdog timer support and example included. You need to check if there's a watchdog config file for your specific chip. You may check it at the specific board's path: ``/boards/<arch>/<chip>/<board>/config``.
+
+.. code-block:: console
+
+ $ ./tools/configure.sh <board>:watchdog
+
+And the second way is creating your own config file. To do so, follow the next instructions.
+
+Enabling the Watchdog Support and Example in ``menuconfing``
+------------------------------------------------------------
+
+1. Select Watchdog Timer Instances
+
+ To select these wdts browse in the ``menuconfig`` using the following path:
+
+ Go into menu :menuselection:`System Type --> <Chip> Peripheral Selection` and press :kbd:`Enter`. Then select one or more watchdog timers according to availability of your chip.
+
+2. Enable the Watchdog Timer Support
+
+ Go into menu :menuselection:`Device Drivers --> Timer Driver Support` and press :kbd:`Enter`. Then enable:
+
+ - [x] Watchdog Timer Support
+
+3. Include the Watchdog Timer Example
+
+ Go into menu :menuselection:`Application Configuration --> Examples` and press :kbd:`Enter`. Then select the Watchdog Timer example.
+
+ - [x] Watchdog Timer example
+
+ Below the option, it is possible to manually configure some standard parameters that will be used by the example, but they also can be passed as command line arguments later.
+ The parameters are the following: the standard timer device path (which defines the WDT instance), the timeout period (which is the period on which the watchdog will expire),
+ the ping delay (which is the interval period between feeding the dog) and the ping time (which is the total interval that the example will feed the dog, after this interval,
+ the dog will starve and the chip will trigger an interrupt or reset.
+
+4. Include the Debug Watchdog Feature
+
+ In order to get the watchdog timer status, you need to enable it. For production code and for your application you may disable it.
+
+ Go into menu :menuselection:`Build Setup --> Debug Options` and press :kbd:`Enter`. Then enable:
+
+ - [x] Enable Debug Features
+ - [x] Watchdog Timer Debug Features
+
+Watchdog Timer Example
+----------------------
+
+The previously selected example will basically do the following:
+
+* Open the watchdog device
+* Set the watchdog timeout
+* Start the watchdog timer
+* Ping (feed the dog) during the ``pingtime`` with a delay of ``pingdelay`` and print out the wdt status in case debug was enabled.
+* Enter into an endless loop without pinging. It will cause the watchdog timer to reset the chip on timeout, i.e., after timer expiration.
+
+
+The `example code <https://github.com/apache/incubator-nuttx-apps/blob/master/examples/watchdog/watchdog_main.c>`_ may be explored, its path is at ``/examples/watchdog/watchdog_main.c`` in the apps' repository.
+
+In NuttX, the watchdog timer driver is a character driver and when a chip supports multiple watchdog timers, each one is accessible through its respective special file in ``/dev`` directory. Each watchdog timer is registered using a unique numeric identifier (i.e. ``/dev/watchdog0``, ``/dev/watchdog1``, ...).
+
+Use the following command to run the example:
+
+.. code-block:: console
+
+ nsh> wdog
+
+This command will use the watchdog timer 0. To use the others, specify it through a parameter (where x is the timer number):
+
+.. code-block:: console
+
+ nsh> wdog -i /dev/watchdogx
+
+Application Level Interface
+----------------------------
+
+The first necessary thing to be done in order to use the watchdog timer driver in an application is to include the header file for the NuttX Watchdog timer driver. It contains the Application Level Interface to the timer driver. To do so, include:
+
+.. code-block:: c
+
+ #include <nuttx/timers/watchdog.h>
+
+
+At an application level, the watchdog timer functionalities may be accessed through ``ioctl`` systems calls. These ``ioctl`` commands internally call lower-half layer operations and the parameters are forwarded to these operations through the ``ioctl`` system call. The example provides a great resource to demonstrate how to use those ``ioctl`` commands. The available ``ioctl`` commands are:
+
+.. c:macro:: WDIOC_START
+
+This command starts the watchdog timer.
+
+.. c:macro:: WDIOC_STOP
+
+This command stops the watchdog timer.
+
+.. c:macro:: WDIOC_GETSTATUS
+
+This command gets the status of the watchdog timer. It receives a writeable pointer to struct ``watchdog_status_s`` as parameter. The lower-half driver writes the current status in this struct.
+
+.. c:struct:: watchdog_status_s
+.. code-block:: c
+
+ struct watchdog_status_s
+ {
+ uint32_t flags; /* See WDFLAGS_* definitions above */
+ uint32_t timeout; /* The current timeout setting (in milliseconds) */
+ uint32_t timeleft; /* Time left until the watchdog expiration
+ * (in milliseconds) */
+ };
+
+.. c:macro:: WDIOC_SETTIMEOUT
+
+This command sets the timeout value, i.e., the value that will trigger the reset or interrupt. The argument is a ``uint32_t`` value in milliseconds.
+
+.. c:macro:: WDIOC_CAPTURE
+
+This command registers an user callback that will be triggered on timeout. It receives as argument a pointer to struct ``watchdog_capture_s``. If the user callback is NULL, then it configures only to reset. Not all chips support interrupt on timeout. This command is optional, i.e., if it's not used, the standard behaviour is to reset on timeout.
+
+.. c:struct:: watchdog_capture_s
+.. code-block:: c
+
+ struct watchdog_capture_s
+ {
+ CODE xcpt_t newhandler; /* The new watchdog capture handler */
+ CODE xcpt_t oldhandler; /* The previous watchdog capture handler (if any) */
+ };
+
+.. c:macro:: WDIOC_KEEPALIVE
+
+ This command resets the watchdog timer AKA '**ping**", "**kick**", "**pet**", "**feed**" the dog".
+
+Enable Built in System Monitoring to reset the watchdog
+-------------------------------------------------------
+
+The auto-monitor provides an OS-internal mechanism to automatically start and repeatedly reset the watchdog.
+
+To enable it, follow the next instructions:
+
+1. Select a Watchdog Timer Instance
+
+ To select the wdt browse in the ``menuconfig`` using the following path:
+
+ Go into menu :menuselection:`System Type --> <Chip> Peripheral Selection` and press :kbd:`Enter`. Then select one watchdog timer.
+
+2. Enable the Auto-monitor option
+
+ Go into menu :menuselection:`Device Drivers --> Timer Driver Support` and press :kbd:`Enter`. Then enable:
+
+ - [x] Watchdog Timer Support
+
+ Then press :kbd:`Enter` again to enter into the Watchdog Timer Support menu. And finally enable the Auto-monitor option:
+
+ - [x] Auto-monitor
+
+ After selecting the option you may want to configure some parameters:
+
+ * **Timeout**: It is the watchdog timer expiration time in seconds.
+ * **Keep a live interval**: This is the interval in which the watchdog will be fed. It is in seconds. It can't be bigger than the timeout. If this interval is equal to timeout interval, than this interval will automatically change to half timeout.
+ * **Keep alive by**: This is a choice to determine who is going to feed the dog. There are 4 possible choices that are described as follows.
+
+ ``Capture callback``: This choice registers a watchdog timer callback to reset the watchdog every time it expires, i.e., on timeout.
+
+ ``Timer callback``: This choice also uses a timer callback to reset the watchdog, but it will reset the watchdog every "keep a live interval".
+
+ ``Worker callback``: This choice uses a Work Queue to reset the watchdog every "keep a live interval". This choice depends on having the Low or High Priority Work Queue enabled.
+ If only the High Priority Work Queue is enabled, this one will be used, otherwise Low Priority Work Queue is used.
+
+ So, before enabling it, go into menu :menuselection:`RTOS Features --> Work queue support` and press :kbd:`Enter`.
+
+ - [x] Low priority (kernel) worker thread
+
+ ``Idle callback``: This choice sets an Idle callback to feed the dog. It depends on the PM module, because this callback is triggered by the PM state change. To enable it do the following:
+
+ Go into menu :menuselection:`Device Drivers` and enable:
+
+ - [x] Power Management Support
+
+After selecting one of these choices, the chip will keep itself alive by one of these options.
diff --git a/content/docs/10.2.0/_sources/components/drivers/index.rst.txt b/content/docs/10.2.0/_sources/components/drivers/index.rst.txt
new file mode 100644
index 0000000..fb4821c
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/index.rst.txt
@@ -0,0 +1,32 @@
+==============
+Device Drivers
+==============
+
+NuttX supports a variety of device drivers, which can be broadly
+divided in three classes:
+
+.. toctree::
+ :maxdepth: 1
+
+ character/index.rst
+ block/index.rst
+ special/index.rst
+
+.. note::
+ Device driver support depends on the *in-memory*, *pseudo*
+ file system that is enabled by default.
+
+Lower-half and upper-half
+=========================
+
+Drivers in NuttX generally work in two distinct layers:
+
+ * An *upper half* which registers itself to NuttX using
+ a call such as :c:func:`register_driver` or
+ :c:func:`register_blockdriver` and implements the corresponding
+ high-level interface (`read`, `write`, `close`, etc.).
+ implements the interface. This *upper half* calls into
+ the *lower half* via callbacks.
+ * A "lower half" which is typically hardware-specific. This is
+ usually implemented at the architecture or board level.
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/ethernet.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/ethernet.rst.txt
new file mode 100644
index 0000000..a8f371a
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/special/ethernet.rst.txt
@@ -0,0 +1,17 @@
+=======================
+Ethernet Device Drivers
+=======================
+
+- ``include/nuttx/net/netdev.h``. All structures and APIs
+ needed to work with Ethernet drivers are provided in this
+ header file. The structure ``struct net_driver_s`` defines the
+ interface and is passed to the network via
+ ``netdev_register()``.
+
+- ``int netdev_register(FAR struct net_driver_s *dev, enum net_lltype_e lltype);``.
+ Each Ethernet driver registers itself by calling
+ ``netdev_register()``.
+
+- **Examples**: ``drivers/net/dm90x0.c``,
+ ``arch/drivers/arm/src/c5471/c5471_ethernet.c``,
+ ``arch/z80/src/ez80/ez80_emac.c``, etc.
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/framebuffer.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/framebuffer.rst.txt
new file mode 100644
index 0000000..aefa7d1
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/special/framebuffer.rst.txt
@@ -0,0 +1,34 @@
+====================
+Frame Buffer Drivers
+====================
+
+- ``include/nuttx/video/fb.h``. All structures and APIs
+ needed to work with frame buffer drivers are provided in this
+ header file.
+
+- ``struct fb_vtable_s``. Each frame buffer device driver
+ must implement an instance of ``struct fb_vtable_s``. That
+ structure defines a call table with the following methods:
+
+ Get information about the video controller configuration and
+ the configuration of each color plane.
+
+ The following are provided only if the video hardware supports
+ RGB color mapping:
+
+ The following are provided only if the video hardware supports
+ a hardware cursor:
+
+- **Binding Frame Buffer Drivers**. Frame buffer drivers are not
+ normally directly accessed by user code, but are usually bound
+ to another, higher level device driver. In general, the binding
+ sequence is:
+
+ #. Get an instance of ``struct fb_vtable_s`` from the
+ hardware-specific frame buffer device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``arch/sim/src/up_framebuffer.c``. See also the
+ usage of the frame buffer driver in the ``graphics/``
+ directory.
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/i2c.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/i2c.rst.txt
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@@ -0,0 +1,22 @@
+==================
+I2C Device Drivers
+==================
+
+- ``include/nuttx/i2c/i2c.h``. All structures and APIs needed
+ to work with I2C drivers are provided in this header file.
+
+- ``struct i2c_ops_s``. Each I2C device driver must implement
+ an instance of ``struct i2c_ops_s``. That structure defines a
+ call table with the following methods:
+
+- **Binding I2C Drivers**. I2C drivers are not normally directly
+ accessed by user code, but are usually bound to another, higher
+ level device driver. In general, the binding sequence is:
+
+ #. Get an instance of ``struct i2c_master_s`` from the
+ hardware-specific I2C device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``arch/z80/src/ez80/ez80_i2c.c``,
+ ``arch/z80/src/z8/z8_i2c.c``, etc.
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/index.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/index.rst.txt
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@@ -0,0 +1,36 @@
+==========================
+Specialized Device Drivers
+==========================
+
+All device drivers that are accessible to application logic are
+either: (1) Character device drivers that can be accessed via the
+standard driver operations (``open()``, ``close()``, ``read()``,
+``write()``, etc.), or (2) block drivers that can be accessing
+only as part of mounting a file system or other special use cases
+as described in the preceding paragraph.
+
+In addition to this, there are also specialized "drivers" that can
+be used only within the OS logic itself and are not accessible to
+application logic. These specialized drivers are discussed in the
+following section.
+
+.. note::
+ While special drivers are *internal*, in some cases there are also
+ character/block drivers that sit on top of these special drivers
+ and thus expose them to applications.
+
+.. toctree::
+ :caption: Supported Drivers
+
+ syslog.rst
+ spi.rst
+ i2c.rst
+ ethernet.rst
+ socketcan.rst
+ framebuffer.rst
+ lcd.rst
+ mtd.rst
+ sdio.rst
+ usbhost.rst
+ usbdev.rst
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/lcd.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/lcd.rst.txt
new file mode 100644
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+===========
+LCD Drivers
+===========
+
+- ``include/nuttx/lcd/lcd.h``. Structures and APIs needed to
+ work with LCD drivers are provided in this header file. This
+ header file also depends on some of the same definitions used
+ for the frame buffer driver as provided in
+ ``include/nuttx/video/fb.h``.
+
+- ``struct lcd_dev_s``. Each LCD device driver must implement
+ an instance of ``struct lcd_dev_s``. That structure defines a
+ call table with the following methods:
+
+ Get information about the LCD video controller configuration
+ and the configuration of each LCD color plane.
+
+ The following are provided only if the video hardware supports
+ RGB color mapping:
+
+ The following are provided only if the video hardware supports
+ a hardware cursor:
+
+ Get the LCD panel power status (0: full off -
+ ``CONFIG_LCD_MAXPOWER``: full on). On backlit LCDs, this
+ setting may correspond to the backlight setting.
+
+ Enable/disable LCD panel power (0: full off -
+ ``CONFIG_LCD_MAXPOWER``: full on). On backlit LCDs, this
+ setting may correspond to the backlight setting.
+
+ Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST) \*/
+
+ Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST)
+
+- **Binding LCD Drivers**. LCD drivers are not normally directly
+ accessed by user code, but are usually bound to another, higher
+ level device driver. In general, the binding sequence is:
+
+ #. Get an instance of ``struct lcd_dev_s`` from the
+ hardware-specific LCD device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``drivers/lcd/p14201.c``,
+ ``boards/arm/sam34/sam3u-ek/src/up_lcd.c.`` See also the usage
+ of the LCD driver in the ``graphics/`` directory.
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/mtd.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/mtd.rst.txt
new file mode 100644
index 0000000..646b39f
--- /dev/null
+++ b/content/docs/10.2.0/_sources/components/drivers/special/mtd.rst.txt
@@ -0,0 +1,45 @@
+================================
+Memory Technology Device Drivers
+================================
+
+- ``include/nuttx/mtd/mtd.h``. All structures and APIs needed
+ to work with MTD drivers are provided in this header file.
+
+- ``struct mtd_dev_s``. Each MTD device driver must implement
+ an instance of ``struct mtd_dev_s``. That structure defines a
+ call table with the following methods:
+
+ Erase the specified erase blocks (units are erase blocks):
+
+ Read/write from the specified read/write blocks:
+
+ Some devices may support byte oriented reads (optional). Most
+ MTD devices are inherently block oriented so byte-oriented
+ accesses are not supported. It is recommended that low-level
+ drivers not support read() if it requires buffering.
+
+ Some devices may also support byte oriented writes (optional).
+ Most MTD devices are inherently block oriented so byte-oriented
+ accesses are not supported. It is recommended that low-level
+ drivers not support read() if it requires buffering. This
+ interface is only available if ``CONFIG_MTD_BYTE_WRITE`` is
+ defined.
+
+ Support other, less frequently used commands:
+
+ - ``MTDIOC_GEOMETRY``: Get MTD geometry
+ - ``MTDIOC_BULKERASE``: Erase the entire device
+
+ is provided via a single ``ioctl`` method (see
+ ``include/nuttx/fs/ioctl.h``):
+
+- **Binding MTD Drivers**. MTD drivers are not normally directly
+ accessed by user code, but are usually bound to another, higher
+ level device driver. In general, the binding sequence is:
+
+ #. Get an instance of ``struct mtd_dev_s`` from the
+ hardware-specific MTD device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``drivers/mtd/m25px.c`` and ``drivers/mtd/ftl.c``
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/sdio.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/sdio.rst.txt
new file mode 100644
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+++ b/content/docs/10.2.0/_sources/components/drivers/special/sdio.rst.txt
@@ -0,0 +1,33 @@
+===================
+SDIO Device Drivers
+===================
+
+- ``include/nuttx/sdio.h``. All structures and APIs needed to
+ work with SDIO drivers are provided in this header file.
+
+- ``struct sdio_dev_s``. Each SDIO device driver must
+ implement an instance of ``struct sdio_dev_s``. That structure
+ defines a call table with the following methods:
+
+ Mutual exclusion:
+
+ Initialization/setup:
+
+ Command/Status/Data Transfer:
+
+ Event/Callback support:
+
+ DMA support:
+
+- **Binding SDIO Drivers**. SDIO drivers are not normally
+ directly accessed by user code, but are usually bound to
+ another, higher level device driver. In general, the binding
+ sequence is:
+
+ #. Get an instance of ``struct sdio_dev_s`` from the
+ hardware-specific SDIO device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``arch/arm/src/stm32/stm32_sdio.c`` and
+ ``drivers/mmcsd/mmcsd_sdio.c``
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/socketcan.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/socketcan.rst.txt
new file mode 100644
index 0000000..cd9556f
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+++ b/content/docs/10.2.0/_sources/components/drivers/special/socketcan.rst.txt
@@ -0,0 +1,66 @@
+========================
+SocketCAN Device Drivers
+========================
+
+ - ``include/nuttx/net/netdev.h``. All structures and APIs
+ needed to work with drivers are provided in this header file.
+ The structure struct net_driver_s defines the interface and is
+ passed to the network via netdev_register().
+
+ - ``include/nuttx/can.h``. CAN & CAN FD frame data
+ structures.
+
+ - ``int netdev_register(FAR struct net_driver_s *dev, enum net_lltype_e lltype)'``.
+ Each driver registers itself by calling netdev_register().
+
+ - ``Include/nuttx/net/can.h``. contains lookup tables for CAN
+ dlc to CAN FD len sizes named
+
+ .. code-block:: c
+
+ extern const uint8_t can_dlc_to_len[16];
+ extern const uint8_t len_to_can_dlc[65];
+
+ - **Initialization sequence is as follows**.
+
+ #. up_netinitialize(void) is called on startup of NuttX in this
+ function you call your own init function to initialize your
+ CAN driver
+ #. In your own init function you create the net_driver_s
+ structure set required init values and register the required
+ callbacks for SocketCAN
+ #. Then you ensure that the CAN interface is in down mode
+ (usually done by calling the d_ifdown function)
+ #. Register the net_driver_s using netdev_register
+
+ - **Receive sequence is as follows**.
+
+ #. Device generates interrupt
+ #. Process this interrupt in your interrupt handler
+ #. When a new CAN frame has been received you process this
+ frame
+ #. When the CAN frame is a normal CAN frame you allocate the
+ can_frame struct, when it's a CAN FD frame you allocate a
+ canfd_frame struct (note you can of course preallocate and
+ just use the pointer).
+ #. Copy the frame from the driver to the struct you've
+ allocated in the previous step.
+ #. Point the net_driver_s d_buf pointer to the allocated
+ can_frame
+ #. Call the ``can_input(FAR struct net_driver_s *dev)``
+ function ``include/nuttx/net/can.h``
+
+ - **Transmit sequence is as follows**.
+
+ #. Socket layer executes d_txavail callback
+ #. An example of the txavail function can be found in
+ ``arch/arm/src/s32k1xx/s32k1xx_flexcan.c``
+ #. An example of the txpoll function can be found in
+ ``arch/arm/src/s32k1xx/s32k1xx_flexcan.c``
+ #. In your ``transmit(struct driver_s *priv)`` function you
+ check the length of ``net_driver_s.d_len`` whether it
+ matches the size of a ``struct can_frame`` or
+ ``struct canfd_frame`` then you cast the content of the
+ ``net_driver_s.d_buf`` pointer to the correct CAN frame
+ struct
+
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/spi.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/spi.rst.txt
new file mode 100644
index 0000000..55560ea
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@@ -0,0 +1,25 @@
+==================
+SPI Device Drivers
+==================
+
+- ``include/nuttx/spi/spi.h``. All structures and APIs needed
+ to work with SPI drivers are provided in this header file.
+
+- ``struct spi_ops_s``. Each SPI device driver must implement
+ an instance of ``struct spi_ops_s``. That structure defines a
+ call table with the following methods:
+
+- **Binding SPI Drivers**. SPI drivers are not normally directly
+ accessed by user code, but are usually bound to another, higher
+ level device driver. See for example,
+ ``int mmcsd_spislotinitialize(int minor, int slotno, FAR struct spi_dev_s *spi)``
+ in ``drivers/mmcsd/mmcsd_spi.c``. In general, the binding
+ sequence is:
+
+ #. Get an instance of ``struct spi_dev_s`` from the
+ hardware-specific SPI device driver, and
+ #. Provide that instance to the initialization method of the
+ higher level device driver.
+
+- **Examples**: ``drivers/loop.c``,
+ ``drivers/mmcsd/mmcsd_spi.c``, ``drivers/ramdisk.c``, etc.
diff --git a/content/docs/10.2.0/_sources/components/drivers/special/syslog.rst.txt b/content/docs/10.2.0/_sources/components/drivers/special/syslog.rst.txt
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@@ -0,0 +1,504 @@
+======
+SYSLOG
+======
+
+
+SYSLOG Interfaces
+=================
+
+Standard SYSLOG Interfaces
+--------------------------
+
+The NuttX SYSLOG is an architecture for getting debug and status
+information from the system. The syslogging interfaces are defined
+in the header file ``include/syslog.h``. The primary interface to
+SYSLOG sub-system is the function ``syslog()`` and, to a lesser
+extent, its companion ``vsyslog()``:
+
+.. c::function:: int syslog(int priority, FAR const IPTR char *format, ...);
+
+ Generates a log message. The
+ priority argument is formed by ORing the facility and the level
+ values (see ``include/syslog.h``). The remaining arguments are a
+ format, as in ``printf()`` and any arguments to the format.
+
+ The NuttX implementation does not support any special formatting
+ characters beyond those supported by ``printf()``.
+
+.. c::function:: void vsyslog(int priority, FAR const IPTR char *src, va_list ap);
+
+ Performs the same task as :c:func:`syslog`
+ with the difference that it takes a set of arguments which have
+ been obtained using the ``stdarg`` variable argument list macros.
+
+.. c::function:: int setlogmask(int mask);
+
+ The additional setlogmask() interface can use use to filter SYSLOG output.
+ This function sets the logmask and returns the previous mask.
+ If the mask argument is zero, the current logmask is not modified.
+
+ The SYSLOG priorities are: ``LOG_EMERG``, ``LOG_ALERT``, ``LOG_CRIT``,
+ ``LOG_ERR``, ``LOG_WARNING``, ``LOG_NOTICE``, ``LOG_INFO``, and ``LOG_DEBUG``.
+ The bit corresponding to a priority ``p`` is ``LOG_MASK(p)``; ``LOG_UPTO(p)``
+ provides the mask of all priorities in the above list up to and including ``p``.
+
+ Per *OpenGroup.org* "If the ``maskpri`` argument is 0,
+ the current log mask is not modified." In this implementation,
+ the value zero is permitted in order to disable all SYSLOG levels.
+
+ .. note::
+ REVISIT: Per POSIX the SYSLOG mask should be a per-process value but
+ in NuttX, the scope of the mask is dependent on the nature of the build:
+
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