[2/4] incubator-mynewt-core git commit: native uart - read into unsigned char.

[cc...@apache.org]

native uart - read into unsigned char.

The character buffer used to be a plain char (typically signed).
The uart struct stores the read char as a signed int.  When a character
with a value > 127 was read, it was interpretted as a negative number.
Storing this in a signed int caused the actual byte value to be lost.
E.g., when 0xff was read, this ultimately got stored as a -1, indicating
a read failure.


Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/commit/06ff4cd9
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/06ff4cd9
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/06ff4cd9

Branch: refs/heads/develop
Commit: 06ff4cd941afbdf5e53af9c918a89fd9600087e1
Parents: 853eea7
Author: Christopher Collins <cc...@apache.org>
Authored: Thu Dec 29 16:59:50 2016 -0800
Committer: Christopher Collins <cc...@apache.org>
Committed: Thu Dec 29 16:59:50 2016 -0800

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 hw/mcu/native/src/hal_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/06ff4cd9/hw/mcu/native/src/hal_uart.c
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diff --git a/hw/mcu/native/src/hal_uart.c b/hw/mcu/native/src/hal_uart.c
index 1ac5b97..4c2c076 100644
--- a/hw/mcu/native/src/hal_uart.c
+++ b/hw/mcu/native/src/hal_uart.c
@@ -168,7 +168,7 @@ uart_poller(void *arg)
     int rc;
     int bytes;
     int sr;
-    char ch;
+    unsigned char ch;
     struct uart *uart;
 
     while (1) {