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Posted to commits@nuttx.apache.org by gn...@apache.org on 2020/04/21 22:42:02 UTC

[incubator-nuttx-apps] branch master updated (989988f -> 2749e64)

This is an automated email from the ASF dual-hosted git repository.

gnutt pushed a change to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git.


    from 989988f  build.yml: Remove -G from cibuild.sh command line
     new 3cdb810  examples: i2schar: nxstyle fixes
     new c9eaf0b  examples: i2sloop: nxstyle fixes
     new 1697c64  examples: nxwidget: nxstyle fixes
     new 2749e64  system: nxplayer & nxrecorder: nxstyle fixes

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 examples/i2schar/i2schar.h                |   2 +
 examples/i2schar/i2schar_main.c           |  48 +++---
 examples/i2schar/i2schar_receiver.c       |   9 +-
 examples/i2schar/i2schar_transmitter.c    |   9 +-
 examples/i2sloop/i2sloop_main.c           |   7 +-
 graphics/nxwidgets/src/cwidgetcontrol.cxx |   4 +-
 include/graphics/nxwm/cstartwindow.hxx    |   2 +-
 include/system/nxplayer.h                 |  95 ++++++-----
 include/system/nxrecorder.h               |  49 +++---
 system/nxplayer/nxplayer.c                | 274 ++++++++++++++++--------------
 system/nxplayer/nxplayer_main.c           | 243 +++++++++++++++++---------
 system/nxrecorder/nxrecorder.c            | 160 +++++++++--------
 system/nxrecorder/nxrecorder_main.c       | 132 +++++++++-----
 13 files changed, 605 insertions(+), 429 deletions(-)


[incubator-nuttx-apps] 02/04: examples: i2sloop: nxstyle fixes

Posted by gn...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

gnutt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git

commit c9eaf0beaafac20f56ec48968998d45aa2781d49
Author: Alin Jerpelea <al...@sony.com>
AuthorDate: Tue Apr 21 17:37:52 2020 +0200

    examples: i2sloop: nxstyle fixes
    
    nxstyle fixes for i2sloop exaple
    
    Signed-off-by: Alin Jerpelea <al...@sony.com>
---
 examples/i2sloop/i2sloop_main.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/examples/i2sloop/i2sloop_main.c b/examples/i2sloop/i2sloop_main.c
index 861d76d..d0c8470 100644
--- a/examples/i2sloop/i2sloop_main.c
+++ b/examples/i2sloop/i2sloop_main.c
@@ -88,7 +88,7 @@ int main(int argc, FAR char *argv[])
   freq = 16000;
 
   while ((opt = getopt(argc, argv, "c:f:")) != -1)
-     {
+    {
        switch (opt)
          {
            case 'c':
@@ -99,7 +99,7 @@ int main(int argc, FAR char *argv[])
              freq = atoi(optarg);
              break;
          }
-   }
+     }
 
   /* Open the I2S character device */
 
@@ -120,7 +120,7 @@ int main(int argc, FAR char *argv[])
   /* Allocate an audio buffer */
 
   desc.numbytes   = 1024;
-  desc.u.ppBuffer = &apb;
+  desc.u.pbuffer = &apb;
 
   ret = apb_alloc(&desc);
   DEBUGASSERT(ret == sizeof(desc));
@@ -139,7 +139,6 @@ int main(int argc, FAR char *argv[])
           bufsize = sizeof(struct ap_buffer_s) + apb->nbytes;
           ret = write(fd, apb, bufsize);
         }
-
     }
 
   apb_free(apb);


[incubator-nuttx-apps] 04/04: system: nxplayer & nxrecorder: nxstyle fixes

Posted by gn...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

gnutt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git

commit 2749e6467bd69638d246a33bfa55d89e684475df
Author: Alin Jerpelea <al...@sony.com>
AuthorDate: Tue Apr 21 17:32:44 2020 +0200

    system: nxplayer & nxrecorder: nxstyle fixes
    
    nxstyle fixes for nxplayer & nxrecorder apps
    
    Signed-off-by: Alin Jerpelea <al...@sony.com>
---
 include/graphics/nxwm/cstartwindow.hxx |   2 +-
 include/system/nxplayer.h              |  95 ++++++------
 include/system/nxrecorder.h            |  49 +++---
 system/nxplayer/nxplayer.c             | 274 +++++++++++++++++----------------
 system/nxplayer/nxplayer_main.c        | 243 +++++++++++++++++++----------
 system/nxrecorder/nxrecorder.c         | 160 ++++++++++---------
 system/nxrecorder/nxrecorder_main.c    | 132 +++++++++++-----
 7 files changed, 561 insertions(+), 394 deletions(-)

diff --git a/include/graphics/nxwm/cstartwindow.hxx b/include/graphics/nxwm/cstartwindow.hxx
index fbb0bc6..085a4a4 100644
--- a/include/graphics/nxwm/cstartwindow.hxx
+++ b/include/graphics/nxwm/cstartwindow.hxx
@@ -82,7 +82,7 @@ namespace NxWM
 
   struct SStartWindowMessage
   {
-    enum EStartWindowMessageOpcodes msgId;    /**< The message opcode */
+    enum EStartWindowMessageOpcodes msg_id;   /**< The message opcode */
     FAR void                       *instance; /**< Object instance. */
   };
 
diff --git a/include/system/nxplayer.h b/include/system/nxplayer.h
index 2010eb2..d2a12fe 100644
--- a/include/system/nxplayer.h
+++ b/include/system/nxplayer.h
@@ -53,22 +53,23 @@
 /****************************************************************************
  * Public Type Declarations
  ****************************************************************************/
+
 /* This structure describes the internal state of the NxPlayer */
 
 struct nxplayer_s
 {
-  int         state;          /* Current player state */
-  int         devFd;          /* File descriptor of active device */
-  mqd_t       mq;             /* Message queue for the playthread */
-  char        mqname[16];     /* Name of our message queue */
-  pthread_t   playId;         /* Thread ID of the playthread */
-  int         crefs;          /* Number of references to the player */
-  sem_t       sem;            /* Thread sync semaphore */
-  int         fd;         /* File descriptor of open file */
+  int         state;                       /* Current player state */
+  int         dev_fd;                      /* File descriptor of active device */
+  mqd_t       mq;                          /* Message queue for the playthread */
+  char        mqname[16];                  /* Name of our message queue */
+  pthread_t   play_id;                     /* Thread ID of the playthread */
+  int         crefs;                       /* Number of references to the player */
+  sem_t       sem;                         /* Thread sync semaphore */
+  int         fd;                          /* File descriptor of open file */
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
   char        prefdevice[CONFIG_NAME_MAX]; /* Preferred audio device */
-  int         prefformat;     /* Formats supported by preferred device */
-  int         preftype;       /* Types supported by preferred device */
+  int         prefformat;                  /* Formats supported by preferred device */
+  int         preftype;                    /* Types supported by preferred device */
 #endif
 #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR
   char        mediadir[CONFIG_NAME_MAX];   /* Root media directory where media is located */
@@ -88,7 +89,7 @@ struct nxplayer_s
 #endif
 };
 
-typedef int (*nxplayer_func)(FAR struct nxplayer_s *pPlayer, char *pargs);
+typedef int (*nxplayer_func)(FAR struct nxplayer_s *pplayer, char *pargs);
 
 /****************************************************************************
  * Public Data
@@ -138,14 +139,14 @@ FAR struct nxplayer_s *nxplayer_create(void);
  *   frees all memory used by the context.
  *
  * Input Parameters:
- *   pPlayer    Pointer to the NxPlayer context
+ *   pplayer    Pointer to the NxPlayer context
  *
  * Returned Value:
  *   None
  *
  ****************************************************************************/
 
-void nxplayer_release(FAR struct nxplayer_s *pPlayer);
+void nxplayer_release(FAR struct nxplayer_s *pplayer);
 
 /****************************************************************************
  * Name: nxplayer_reference
@@ -153,14 +154,14 @@ void nxplayer_release(FAR struct nxplayer_s *pPlayer);
  *   Increments the reference count to the player.
  *
  * Input Parameters:
- *   pPlayer    Pointer to the NxPlayer context
+ *   pplayer    Pointer to the NxPlayer context
  *
  * Returned Value:
  *   None
  *
  ****************************************************************************/
 
-void nxplayer_reference(FAR struct nxplayer_s *pPlayer);
+void nxplayer_reference(FAR struct nxplayer_s *pplayer);
 
 /****************************************************************************
  * Name: nxplayer_setdevice
@@ -172,7 +173,7 @@ void nxplayer_reference(FAR struct nxplayer_s *pPlayer);
  *   playing an MP3 file, a WAV decoder device for a WAV file, etc.).
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   device    - Pointer to pathname of the preferred device
  *
  * Returned Value:
@@ -180,7 +181,7 @@ void nxplayer_reference(FAR struct nxplayer_s *pPlayer);
  *
  ****************************************************************************/
 
-int nxplayer_setdevice(FAR struct nxplayer_s *pPlayer,
+int nxplayer_setdevice(FAR struct nxplayer_s *pplayer,
                        FAR const char *device);
 
 /****************************************************************************
@@ -192,7 +193,7 @@ int nxplayer_setdevice(FAR struct nxplayer_s *pPlayer,
  *   found in the /dev/audio directory will be used.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   filename  - Pointer to pathname of the file to play
  *   filefmt   - Format of audio in filename if known, AUDIO_FMT_UNDEF
  *               to let nxplayer_playfile() determine automatically.
@@ -204,7 +205,7 @@ int nxplayer_setdevice(FAR struct nxplayer_s *pPlayer,
  *
  ****************************************************************************/
 
-int nxplayer_playfile(FAR struct nxplayer_s *pPlayer,
+int nxplayer_playfile(FAR struct nxplayer_s *pplayer,
                       FAR const char *filename, int filefmt, int subfmt);
 
 /****************************************************************************
@@ -216,7 +217,7 @@ int nxplayer_playfile(FAR struct nxplayer_s *pPlayer,
  *   found in the /dev/audio directory will be used.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   filename  - Pointer to pathname of the file to play
  *   nchannels  channel num
  *   bpsampe    bit width
@@ -227,7 +228,7 @@ int nxplayer_playfile(FAR struct nxplayer_s *pPlayer,
  *
  ****************************************************************************/
 
-int nxplayer_playraw(FAR struct nxplayer_s *pPlayer,
+int nxplayer_playraw(FAR struct nxplayer_s *pplayer,
                      FAR const char *filename, uint8_t nchannels,
                      uint8_t bpsamp, uint32_t samprate);
 
@@ -237,7 +238,7 @@ int nxplayer_playraw(FAR struct nxplayer_s *pPlayer,
  *   Stops current playback.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and playback started.
@@ -245,7 +246,7 @@ int nxplayer_playraw(FAR struct nxplayer_s *pPlayer,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-int nxplayer_stop(FAR struct nxplayer_s *pPlayer);
+int nxplayer_stop(FAR struct nxplayer_s *pplayer);
 #endif
 
 /****************************************************************************
@@ -254,7 +255,7 @@ int nxplayer_stop(FAR struct nxplayer_s *pPlayer);
  *   Pauses current playback.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and playback started.
@@ -262,7 +263,7 @@ int nxplayer_stop(FAR struct nxplayer_s *pPlayer);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-int nxplayer_pause(FAR struct nxplayer_s *pPlayer);
+int nxplayer_pause(FAR struct nxplayer_s *pplayer);
 #endif
 
 /****************************************************************************
@@ -271,7 +272,7 @@ int nxplayer_pause(FAR struct nxplayer_s *pPlayer);
  *   Resumes current playback.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and playback started.
@@ -279,7 +280,7 @@ int nxplayer_pause(FAR struct nxplayer_s *pPlayer);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-int nxplayer_resume(FAR struct nxplayer_s *pPlayer);
+int nxplayer_resume(FAR struct nxplayer_s *pplayer);
 #endif
 
 /****************************************************************************
@@ -294,7 +295,7 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer);
  *   paused, non-playing state.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   subsample - Identifies the fast forward rate (in terms of sub-sampling,
  *               but does not explicitly require sub-sampling).  See
  *               AUDIO_SUBSAMPLE_* definitions.
@@ -305,7 +306,7 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD
-int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
+int nxplayer_fforward(FAR struct nxplayer_s *pplayer, uint8_t subsample);
 #endif
 
 /****************************************************************************
@@ -321,7 +322,7 @@ int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
  *   AUDIO_SUBSAMPLE_NONE is not a valid argument to this function.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   subsample - Identifies the rewind rate (in terms of sub-sampling, but
  *               does not explicitly require sub-sampling).  See
  *               AUDIO_SUBSAMPLE_* definitions.
@@ -332,7 +333,7 @@ int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_REWIND
-int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
+int nxplayer_rewind(FAR struct nxplayer_s *pplayer, uint8_t subsample);
 #endif
 
 /****************************************************************************
@@ -342,7 +343,7 @@ int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
  *   paused state or to the normal, forward play state.
  *
  * Input Parameters:
- *   pPlayer - Pointer to the context to initialize
+ *   pplayer - Pointer to the context to initialize
  *   paused  - True: return to the paused state, False: return to the 1X
  *             forward play state.
  *
@@ -352,7 +353,7 @@ int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, uint8_t subsample);
  ****************************************************************************/
 
 #if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
-int nxplayer_cancel_motion(FAR struct nxplayer_s *pPlayer, bool paused);
+int nxplayer_cancel_motion(FAR struct nxplayer_s *pplayer, bool paused);
 #endif
 
 /****************************************************************************
@@ -363,7 +364,7 @@ int nxplayer_cancel_motion(FAR struct nxplayer_s *pPlayer, bool paused);
  *   1%.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   volume    - Volume level to set in 1/10th percent increments
  *
  * Returned Value:
@@ -372,7 +373,7 @@ int nxplayer_cancel_motion(FAR struct nxplayer_s *pPlayer, bool paused);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
-int nxplayer_setvolume(FAR struct nxplayer_s *pPlayer, uint16_t volume);
+int nxplayer_setvolume(FAR struct nxplayer_s *pplayer, uint16_t volume);
 #endif
 
 /****************************************************************************
@@ -383,7 +384,7 @@ int nxplayer_setvolume(FAR struct nxplayer_s *pPlayer, uint16_t volume);
  *   1%.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   balance   - Balance level to set in 1/10th percent increments
  *
  * Returned Value:
@@ -393,7 +394,7 @@ int nxplayer_setvolume(FAR struct nxplayer_s *pPlayer, uint16_t volume);
 
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
 #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE
-int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance);
+int nxplayer_setbalance(FAR struct nxplayer_s *pplayer, uint16_t balance);
 #endif
 #endif
 
@@ -403,7 +404,7 @@ int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance);
  *   Sets the root media directory for non-path qualified file searches.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   mediadir  - Pointer to pathname of the media directory
  *
  * Returned Value:
@@ -411,7 +412,7 @@ int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance);
  *
  ****************************************************************************/
 
-void nxplayer_setmediadir(FAR struct nxplayer_s *pPlayer,
+void nxplayer_setmediadir(FAR struct nxplayer_s *pplayer,
                           FAR const char *mediadir);
 
 /****************************************************************************
@@ -421,7 +422,7 @@ void nxplayer_setmediadir(FAR struct nxplayer_s *pPlayer,
  *   represented in one percent increments, so the range is 0-100.
  *
  * Input Parameters:
- *   pPlayer      - Pointer to the context to initialize
+ *   pplayer      - Pointer to the context to initialize
  *   equalization - Pointer to array of equalizer settings of size
  *                  CONFIG_AUDIO_EQUALIZER_NBANDS bytes.  Each byte
  *                  represents the setting for one band in the range of
@@ -433,7 +434,7 @@ void nxplayer_setmediadir(FAR struct nxplayer_s *pPlayer,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_EQUALIZER
-int nxplayer_setequalization(FAR struct nxplayer_s *pPlayer,
+int nxplayer_setequalization(FAR struct nxplayer_s *pplayer,
                              FAR uint8_t *equalization);
 #endif
 
@@ -444,7 +445,7 @@ int nxplayer_setequalization(FAR struct nxplayer_s *pPlayer,
  *   increments, so the range is 0-100.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   bass      - Bass level to set in one percent increments
  *
  * Returned Value:
@@ -453,7 +454,7 @@ int nxplayer_setequalization(FAR struct nxplayer_s *pPlayer,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-int nxplayer_setbass(FAR struct nxplayer_s *pPlayer, uint8_t bass);
+int nxplayer_setbass(FAR struct nxplayer_s *pplayer, uint8_t bass);
 #endif
 
 /****************************************************************************
@@ -463,7 +464,7 @@ int nxplayer_setbass(FAR struct nxplayer_s *pPlayer, uint8_t bass);
  *   increments, so the range is 0-100.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *   treble    - Treble level to set in one percent increments
  *
  * Returned Value:
@@ -472,7 +473,7 @@ int nxplayer_setbass(FAR struct nxplayer_s *pPlayer, uint8_t bass);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-int nxplayer_settreble(FAR struct nxplayer_s *pPlayer, uint8_t treble);
+int nxplayer_settreble(FAR struct nxplayer_s *pplayer, uint8_t treble);
 #endif
 
 /****************************************************************************
@@ -482,7 +483,7 @@ int nxplayer_settreble(FAR struct nxplayer_s *pPlayer, uint8_t treble);
  *   registered audio devices.
  *
  * Input Parameters:
- *   pPlayer   - Pointer to the context to initialize
+ *   pplayer   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and playback started.
@@ -490,7 +491,7 @@ int nxplayer_settreble(FAR struct nxplayer_s *pPlayer, uint8_t treble);
  ****************************************************************************/
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET
-int nxplayer_systemreset(FAR struct nxplayer_s *pPlayer);
+int nxplayer_systemreset(FAR struct nxplayer_s *pplayer);
 #endif
 
 #undef EXTERN
diff --git a/include/system/nxrecorder.h b/include/system/nxrecorder.h
index 3294f5e..d751696 100644
--- a/include/system/nxrecorder.h
+++ b/include/system/nxrecorder.h
@@ -54,21 +54,22 @@
 
 struct nxrecorder_s
 {
-  int         state;          /* Current recorder state */
-  int         devFd;          /* File descriptor of active device */
-  mqd_t       mq;             /* Message queue for the recordthread */
-  char        mqname[16];     /* Name of our message queue */
-  pthread_t   recordId;       /* Thread ID of the recordthread */
-  int         crefs;          /* Number of references to the recorder */
-  sem_t       sem;            /* Thread sync semaphore */
-  int         fd;             /* File descriptor of open file */
+  int         state;                   /* Current recorder state */
+  int         dev_fd;                  /* File descriptor of active device */
+  mqd_t       mq;                      /* Message queue for the recordthread */
+  char        mqname[16];              /* Name of our message queue */
+  pthread_t   record_id;               /* Thread ID of the recordthread */
+  int         crefs;                   /* Number of references to the recorder */
+  sem_t       sem;                     /* Thread sync semaphore */
+  int         fd;                      /* File descriptor of open file */
   char        device[CONFIG_NAME_MAX]; /* Preferred audio device */
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-  FAR void    *session;       /* Session assignment from device */
+  FAR void    *session;                /* Session assignment from device */
 #endif
 };
 
-typedef int (*nxrecorder_func)(FAR struct nxrecorder_s *pRecorder, char *pargs);
+typedef int (*nxrecorder_func)(FAR struct nxrecorder_s *precorder,
+                               char *pargs);
 
 /****************************************************************************
  * Public Data
@@ -118,14 +119,14 @@ FAR struct nxrecorder_s *nxrecorder_create(void);
  *   frees all memory used by the context.
  *
  * Input Parameters:
- *   pRecorder    Pointer to the NxRecorder context
+ *   precorder    Pointer to the NxRecorder context
  *
  * Returned Value:
  *   None
  *
  ****************************************************************************/
 
-void nxrecorder_release(FAR struct nxrecorder_s *pRecorder);
+void nxrecorder_release(FAR struct nxrecorder_s *precorder);
 
 /****************************************************************************
  * Name: nxrecorder_reference
@@ -133,14 +134,14 @@ void nxrecorder_release(FAR struct nxrecorder_s *pRecorder);
  *   Increments the reference count to the recorder.
  *
  * Input Parameters:
- *   pRecorder    Pointer to the NxRecorder context
+ *   precorder    Pointer to the NxRecorder context
  *
  * Returned Value:
  *   None
  *
  ****************************************************************************/
 
-void nxrecorder_reference(FAR struct nxrecorder_s *pRecorder);
+void nxrecorder_reference(FAR struct nxrecorder_s *precorder);
 
 /****************************************************************************
  * Name: nxrecorder_setdevice
@@ -152,7 +153,7 @@ void nxrecorder_reference(FAR struct nxrecorder_s *pRecorder);
  *   recording an MP3 file, a WAV decoder device for a WAV file, etc.).
  *
  * Input Parameters:
- *   pRecorder - Pointer to the context to initialize
+ *   precorder - Pointer to the context to initialize
  *   device    - Pointer to pathname of the preferred device
  *
  * Returned Value:
@@ -160,7 +161,7 @@ void nxrecorder_reference(FAR struct nxrecorder_s *pRecorder);
  *
  ****************************************************************************/
 
-int nxrecorder_setdevice(FAR struct nxrecorder_s *pRecorder,
+int nxrecorder_setdevice(FAR struct nxrecorder_s *precorder,
                          FAR const char *device);
 
 /****************************************************************************
@@ -172,7 +173,7 @@ int nxrecorder_setdevice(FAR struct nxrecorder_s *pRecorder,
  *   found in the /dev/audio directory will be used.
  *
  * Input Parameters:
- *   pRecorder - Pointer to the context to initialize
+ *   precorder - Pointer to the context to initialize
  *   filename  - Pointer to pathname of the file to record
  *   nchannels - channels num
  *   bpsampe   - bit width
@@ -184,7 +185,7 @@ int nxrecorder_setdevice(FAR struct nxrecorder_s *pRecorder,
  *
  ****************************************************************************/
 
-int nxrecorder_recordraw(FAR struct nxrecorder_s *pRecorder,
+int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
                          FAR const char *filename, uint8_t nchannels,
                          uint8_t bpsamp, uint32_t samprate);
 
@@ -194,7 +195,7 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *pRecorder,
  *   Stops current recordback.
  *
  * Input Parameters:
- *   pRecorder   - Pointer to the context to initialize
+ *   precorder   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and recordback started.
@@ -202,7 +203,7 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *pRecorder,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-int nxrecorder_stop(FAR struct nxrecorder_s *pRecorder);
+int nxrecorder_stop(FAR struct nxrecorder_s *precorder);
 #endif
 
 /****************************************************************************
@@ -211,7 +212,7 @@ int nxrecorder_stop(FAR struct nxrecorder_s *pRecorder);
  *   Pauses current recordback.
  *
  * Input Parameters:
- *   pRecorder   - Pointer to the context to initialize
+ *   precorder   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and recordback started.
@@ -219,7 +220,7 @@ int nxrecorder_stop(FAR struct nxrecorder_s *pRecorder);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-int nxrecorder_pause(FAR struct nxrecorder_s *pRecorder);
+int nxrecorder_pause(FAR struct nxrecorder_s *precorder);
 #endif
 
 /****************************************************************************
@@ -228,7 +229,7 @@ int nxrecorder_pause(FAR struct nxrecorder_s *pRecorder);
  *   Resumes current recordback.
  *
  * Input Parameters:
- *   pRecorder   - Pointer to the context to initialize
+ *   precorder   - Pointer to the context to initialize
  *
  * Returned Value:
  *   OK if file found, device found, and recordback started.
@@ -236,7 +237,7 @@ int nxrecorder_pause(FAR struct nxrecorder_s *pRecorder);
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-int nxrecorder_resume(FAR struct nxrecorder_s *pRecorder);
+int nxrecorder_resume(FAR struct nxrecorder_s *precorder);
 #endif
 
 #undef EXTERN
diff --git a/system/nxplayer/nxplayer.c b/system/nxplayer/nxplayer.c
index 2e24ccd..1f9046d 100644
--- a/system/nxplayer/nxplayer.c
+++ b/system/nxplayer/nxplayer.c
@@ -318,8 +318,8 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 
       /* Device supports the format.  Open the device file. */
 
-      pplayer->devFd = open(pplayer->prefdevice, O_RDWR);
-      if (pplayer->devFd == -1)
+      pplayer->dev_fd = open(pplayer->prefdevice, O_RDWR);
+      if (pplayer->dev_fd == -1)
         {
           int errcode = errno;
           DEBUGASSERT(errcode > 0);
@@ -343,7 +343,7 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 #ifdef CONFIG_NXPLAYER_INCLUDE_DEVICE_SEARCH
     {
       struct audio_caps_s caps;
-      FAR struct dirent *pDevice;
+      FAR struct dirent *pdevice;
       FAR DIR *dirp;
       char path[64];
       uint8_t supported = true;
@@ -370,7 +370,7 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
           return -ENODEV;
         }
 
-      while ((pDevice = readdir(dirp)) != NULL)
+      while ((pdevice = readdir(dirp)) != NULL)
         {
           /* We found the next device.  Try to open it and
            * get its audio capabilities.
@@ -378,16 +378,16 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 
 #ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH
 #ifdef CONFIG_AUDIO_DEV_ROOT
-          snprintf(path,  sizeof(path), "/dev/%s", pDevice->d_name);
+          snprintf(path,  sizeof(path), "/dev/%s", pdevice->d_name);
 #else
           snprintf(path,  sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s",
-                   pDevice->d_name);
+                   pdevice->d_name);
 #endif /* CONFIG_AUDIO_DEV_ROOT */
 #else
-          snprintf(path,  sizeof(path), "/dev/audio/%s", pDevice->d_name);
+          snprintf(path,  sizeof(path), "/dev/audio/%s", pdevice->d_name);
 #endif /* CONFIG_AUDIO_CUSTOM_DEV_PATH */
 
-          if ((pplayer->devFd = open(path, O_RDWR)) != -1)
+          if ((pplayer->dev_fd = open(path, O_RDWR)) != -1)
             {
               /* We have the device file open.  Now issue an AUDIO ioctls to
                * get the capabilities
@@ -397,7 +397,7 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
               caps.ac_type = AUDIO_TYPE_QUERY;
               caps.ac_subtype = AUDIO_TYPE_QUERY;
 
-              if (ioctl(pplayer->devFd, AUDIOIOC_GETCAPS,
+              if (ioctl(pplayer->dev_fd, AUDIOIOC_GETCAPS,
                         (unsigned long)&caps) == caps.ac_len)
                 {
                   /* Test if this device supports the format we want */
@@ -409,15 +409,19 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 
                       if (subfmt != AUDIO_FMT_UNDEF)
                         {
-                          /* Prepare to get sub-formats for this main format */
+                          /* Prepare to get sub-formats for
+                           * this main format
+                           */
 
                           caps.ac_subtype = format;
                           caps.ac_format.b[0] = 0;
 
-                          while (ioctl(pplayer->devFd, AUDIOIOC_GETCAPS,
+                          while (ioctl(pplayer->dev_fd, AUDIOIOC_GETCAPS,
                               (unsigned long) &caps) == caps.ac_len)
                             {
-                              /* Check the next set of 4 controls to find the subformat */
+                              /* Check the next set of 4 controls
+                               * to find the subformat
+                               */
 
                               for (x = 0; x < sizeof(caps.ac_controls); x++)
                                 {
@@ -427,7 +431,8 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 
                                       break;
                                     }
-                                  else if (caps.ac_controls.b[x] == AUDIO_SUBFMT_END)
+                                  else if (caps.ac_controls.b[x] ==
+                                           AUDIO_SUBFMT_END)
                                     {
                                       /* Sub format not supported */
 
@@ -445,7 +450,9 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
                                   break;
                                 }
 
-                              /* Increment ac_format.b[0] to get next set of subformats */
+                              /* Increment ac_format.b[0] to get next
+                               * set of subformats
+                               */
 
                               caps.ac_format.b[0]++;
                             }
@@ -465,7 +472,7 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
 
               /* Not this device! */
 
-              close(pplayer->devFd);
+              close(pplayer->dev_fd);
             }
         }
 
@@ -478,7 +485,7 @@ static int nxplayer_opendevice(FAR struct nxplayer_s *pplayer, int format,
   /* Device not found */
 
   auderr("ERROR: Device not found\n");
-  pplayer->devFd = -1;
+  pplayer->dev_fd = -1;
   return -ENODEV;
 }
 
@@ -534,30 +541,30 @@ int nxplayer_getmidisubformat(int fd)
 
 #ifdef CONFIG_NXPLAYER_FMT_FROM_EXT
 static inline int nxplayer_fmtfromextension(FAR struct nxplayer_s *pplayer,
-                                            FAR const char *pFilename,
+                                            FAR const char *pfilename,
                                             FAR int *subfmt)
 {
-  const char  *pExt;
+  const char  *pext;
   uint8_t      x;
   uint8_t      c;
 
   /* Find the file extension, if any */
 
-  x = strlen(pFilename) - 1;
+  x = strlen(pfilename) - 1;
   while (x > 0)
     {
       /* Search backward for the first '.' */
 
-      if (pFilename[x] == '.')
+      if (pfilename[x] == '.')
         {
           /* First '.' found.  Now compare with known extensions */
 
-          pExt = &pFilename[x + 1];
+          pext = &pfilename[x + 1];
           for (c = 0; c < g_known_ext_count; c++)
             {
               /* Test for extension match */
 
-              if (strcasecmp(pExt, g_known_ext[c].ext) == 0)
+              if (strcasecmp(pext, g_known_ext[c].ext) == 0)
                 {
                   /* Test if we have a sub-format detection routine */
 
@@ -575,7 +582,7 @@ static inline int nxplayer_fmtfromextension(FAR struct nxplayer_s *pplayer,
 
       /* Stop if we find a '/' */
 
-      if (pFilename[x] == '/')
+      if (pfilename[x] == '/')
         {
           break;
         }
@@ -613,7 +620,7 @@ static int nxplayer_fmtfromheader(FAR struct nxplayer_s *pplayer)
 
 #if defined(CONFIG_NXPLAYER_MEDIA_SEARCH) && defined(CONFIG_NXPLAYER_INCLUDE_MEDIADIR)
 static int nxplayer_mediasearch(FAR struct nxplayer_s *pplayer,
-                                FAR const char *pFilename,
+                                FAR const char *pfilename,
                                 FAR const char *path, int pathmax)
 {
   return -ENOENT;
@@ -743,9 +750,9 @@ static int nxplayer_enqueuebuffer(FAR struct nxplayer_s *pplayer,
   bufdesc.session   = pplayer->session;
 #endif
   bufdesc.numbytes  = apb->nbytes;
-  bufdesc.u.pBuffer = apb;
+  bufdesc.u.buffer = apb;
 
-  ret = ioctl(pplayer->devFd, AUDIOIOC_ENQUEUEBUFFER,
+  ret = ioctl(pplayer->dev_fd, AUDIOIOC_ENQUEUEBUFFER,
               (unsigned long)&bufdesc);
   if (ret < 0)
     {
@@ -782,9 +789,9 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
   bool                        failed = false;
 #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
   struct ap_buffer_info_s     buf_info;
-  FAR struct ap_buffer_s      **pbuffers;
+  FAR struct ap_buffer_s      **buffers;
 #else
-  FAR struct ap_buffer_s      *pbuffers[CONFIG_AUDIO_NUM_BUFFERS];
+  FAR struct ap_buffer_s      *buffers[CONFIG_AUDIO_NUM_BUFFERS];
 #endif
   unsigned int                prio;
 #ifdef CONFIG_DEBUG_FEATURES
@@ -798,7 +805,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
   /* Query the audio device for it's preferred buffer size / qty */
 
 #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
-  if ((ret = ioctl(pplayer->devFd, AUDIOIOC_GETBUFFERINFO,
+  if ((ret = ioctl(pplayer->dev_fd, AUDIOIOC_GETBUFFERINFO,
           (unsigned long) &buf_info)) != OK)
     {
       /* Driver doesn't report it's buffer size.  Use our default. */
@@ -809,9 +816,9 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
   /* Create array of pointers to buffers */
 
-  pbuffers = (FAR struct ap_buffer_s **)
+  buffers = (FAR struct ap_buffer_s **)
     malloc(buf_info.nbuffers * sizeof(FAR void *));
-  if (pbuffers == NULL)
+  if (buffers == NULL)
     {
       /* Error allocating memory for buffer storage! */
 
@@ -824,7 +831,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
   for (x = 0; x < buf_info.nbuffers; x++)
     {
-      pbuffers[x] = NULL;
+      buffers[x] = NULL;
     }
 
   for (x = 0; x < buf_info.nbuffers; x++)
@@ -832,7 +839,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
   for (x = 0; x < CONFIG_AUDIO_NUM_BUFFERS; x++)
     {
-      pbuffers[x] = NULL;
+      buffers[x] = NULL;
     }
 
   for (x = 0; x < CONFIG_AUDIO_NUM_BUFFERS; x++)
@@ -848,9 +855,9 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 #else
       buf_desc.numbytes = CONFIG_AUDIO_BUFFER_NUMBYTES;
 #endif
-      buf_desc.u.ppBuffer = &pbuffers[x];
+      buf_desc.u.pbuffer = &buffers[x];
 
-      ret = ioctl(pplayer->devFd, AUDIOIOC_ALLOCBUFFER,
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_ALLOCBUFFER,
                   (unsigned long) &buf_desc);
       if (ret != sizeof(buf_desc))
         {
@@ -872,7 +879,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
     {
       /* Read the next buffer of data */
 
-      ret = nxplayer_readbuffer(pplayer, pbuffers[x]);
+      ret = nxplayer_readbuffer(pplayer, buffers[x]);
       if (ret != OK)
         {
           /* nxplayer_readbuffer will return an error if there is no further
@@ -901,14 +908,15 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
       else
         {
-          ret = nxplayer_enqueuebuffer(pplayer, pbuffers[x]);
+          ret = nxplayer_enqueuebuffer(pplayer, buffers[x]);
           if (ret != OK)
             {
-              /* Failed to enqueue the buffer.  The driver is not happy with
-               * the buffer.  Perhaps a decoder has detected something that it
-               * does not like in the stream and has stopped streaming.  This
-               * would happen normally if we send a file in the incorrect
-               * format to an audio decoder.
+              /* Failed to enqueue the buffer.
+               * The driver is not happy with the buffer.
+               * Perhaps a decoder has detected something that it
+               * does not like in the stream and has stopped streaming.
+               * This would happen normally if we send a file in the
+               * incorrect format to an audio decoder.
                *
                * We must stop streaming as gracefully as possible.  Close the
                * file so that no further data is read.
@@ -918,8 +926,8 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
               pplayer->fd = -1;
 
               /* We are no longer streaming data from the file.  Be we will
-               * need to wait for any outstanding buffers to be recovered.  We
-               * also still expect the audio driver to send a
+               * need to wait for any outstanding buffers to be recovered.
+               *  We also still expect the audio driver to send a
                * AUDIO_MSG_COMPLETE message after all queued buffers have
                * been returned.
                */
@@ -947,10 +955,10 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
   if (running && !failed)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(pplayer->devFd, AUDIOIOC_START,
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_START,
                   (unsigned long) pplayer->session);
 #else
-      ret = ioctl(pplayer->devFd, AUDIOIOC_START, 0);
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_START, 0);
 #endif
 
       if (ret < 0)
@@ -1025,7 +1033,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
       /* Perform operation based on message id */
 
-      switch (msg.msgId)
+      switch (msg.msg_id)
         {
           /* An audio buffer is being dequeued by the driver */
 
@@ -1036,7 +1044,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
              * least one buffer.
              */
 
-            DEBUGASSERT(msg.u.pPtr && outstanding > 0);
+            DEBUGASSERT(msg.u.ptr && outstanding > 0);
             outstanding--;
 #endif
 
@@ -1049,7 +1057,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
               {
                 /* Read the next buffer of data */
 
-                ret = nxplayer_readbuffer(pplayer, msg.u.pPtr);
+                ret = nxplayer_readbuffer(pplayer, msg.u.ptr);
                 if (ret != OK)
                   {
                     /* Out of data.  Stay in the loop until the device sends
@@ -1064,7 +1072,7 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
 
                 else
                   {
-                    ret = nxplayer_enqueuebuffer(pplayer, msg.u.pPtr);
+                    ret = nxplayer_enqueuebuffer(pplayer, msg.u.ptr);
                     if (ret != OK)
                       {
                         /* There is some issue from the audio driver.
@@ -1106,10 +1114,10 @@ static void *nxplayer_playthread(pthread_addr_t pvarg)
             audinfo("Stopping! outstanding=%d\n", outstanding);
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-            ioctl(pplayer->devFd, AUDIOIOC_STOP,
+            ioctl(pplayer->dev_fd, AUDIOIOC_STOP,
                  (unsigned long) pplayer->session);
 #else
-            ioctl(pplayer->devFd, AUDIOIOC_STOP, 0);
+            ioctl(pplayer->dev_fd, AUDIOIOC_STOP, 0);
 #endif
             /* Stay in the running loop (without sending more data).
              * we will need to recover our audio buffers.  We will
@@ -1140,27 +1148,27 @@ err_out:
   audinfo("Clean-up and exit\n");
 
 #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
-  if (pbuffers != NULL)
+  if (buffers != NULL)
     {
       audinfo("Freeing buffers\n");
       for (x = 0; x < buf_info.nbuffers; x++)
         {
           /* Fill in the buffer descriptor struct to issue a free request */
 
-          if (pbuffers[x] != NULL)
+          if (buffers[x] != NULL)
             {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
               buf_desc.session = pplayer->session;
 #endif
-              buf_desc.u.pBuffer = pbuffers[x];
-              ioctl(pplayer->devFd, AUDIOIOC_FREEBUFFER,
+              buf_desc.u.buffer = buffers[x];
+              ioctl(pplayer->dev_fd, AUDIOIOC_FREEBUFFER,
                     (unsigned long)&buf_desc);
             }
         }
 
       /* Free the pointers to the buffers */
 
-      free(pbuffers);
+      free(buffers);
     }
 #else
     audinfo("Freeing buffers\n");
@@ -1168,13 +1176,13 @@ err_out:
       {
         /* Fill in the buffer descriptor struct to issue a free request */
 
-        if (pbuffers[x] != NULL)
+        if (buffers[x] != NULL)
           {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
             buf_desc.session = pplayer->session;
 #endif
-            buf_desc.u.pBuffer = pbuffers[x];
-            ioctl(pplayer->devFd, AUDIOIOC_FREEBUFFER,
+            buf_desc.u.buffer = buffers[x];
+            ioctl(pplayer->dev_fd, AUDIOIOC_FREEBUFFER,
                   (unsigned long)&buf_desc);
           }
       }
@@ -1182,12 +1190,12 @@ err_out:
 
   /* Unregister the message queue and release the session */
 
-  ioctl(pplayer->devFd, AUDIOIOC_UNREGISTERMQ, (unsigned long) pplayer->mq);
+  ioctl(pplayer->dev_fd, AUDIOIOC_UNREGISTERMQ, (unsigned long) pplayer->mq);
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-  ioctl(pplayer->devFd, AUDIOIOC_RELEASE, (unsigned long) pplayer->session);
+  ioctl(pplayer->dev_fd, AUDIOIOC_RELEASE, (unsigned long) pplayer->session);
 #else
-  ioctl(pplayer->devFd, AUDIOIOC_RELEASE, 0);
+  ioctl(pplayer->dev_fd, AUDIOIOC_RELEASE, 0);
 #endif
 
   /* Cleanup */
@@ -1203,8 +1211,8 @@ err_out:
       pplayer->fd = -1;                   /* Clear out the FD */
     }
 
-  close(pplayer->devFd);                  /* Close the device */
-  pplayer->devFd = -1;                    /* Mark device as closed */
+  close(pplayer->dev_fd);                 /* Close the device */
+  pplayer->dev_fd = -1;                   /* Mark device as closed */
   mq_close(pplayer->mq);                  /* Close the message queue */
   mq_unlink(pplayer->mqname);             /* Unlink the message queue */
   pplayer->state = NXPLAYER_STATE_IDLE;   /* Go to IDLE */
@@ -1262,7 +1270,7 @@ int nxplayer_setvolume(FAR struct nxplayer_s *pplayer, uint16_t volume)
       cap_desc.caps.ac_type           = AUDIO_TYPE_FEATURE;
       cap_desc.caps.ac_format.hw      = AUDIO_FU_VOLUME;
       cap_desc.caps.ac_controls.hw[0] = volume;
-      ret = ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE,
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_CONFIGURE,
                   (unsigned long)&cap_desc);
       if (ret < 0)
         {
@@ -1350,7 +1358,7 @@ int nxplayer_setbass(FAR struct nxplayer_s *pplayer, uint8_t level)
       cap_desc.caps.ac_type          = AUDIO_TYPE_FEATURE;
       cap_desc.caps.ac_format.hw     = AUDIO_FU_BASS;
       cap_desc.caps.ac_controls.b[0] = level;
-      ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
+      ioctl(pplayer->dev_fd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
     }
 
   /* Store the volume setting */
@@ -1402,7 +1410,7 @@ int nxplayer_settreble(FAR struct nxplayer_s *pplayer, uint8_t level)
       cap_desc.caps.ac_type          = AUDIO_TYPE_FEATURE;
       cap_desc.caps.ac_format.hw     = AUDIO_FU_TREBLE;
       cap_desc.caps.ac_controls.b[0] = level;
-      ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
+      ioctl(pplayer->dev_fd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
     }
 
   /* Store the volume setting */
@@ -1450,7 +1458,7 @@ int nxplayer_setbalance(FAR struct nxplayer_s *pplayer, uint16_t balance)
       cap_desc.caps.ac_type           = AUDIO_TYPE_FEATURE;
       cap_desc.caps.ac_format.hw      = AUDIO_FU_BALANCE;
       cap_desc.caps.ac_controls.hw[0] = balance;
-      ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
+      ioctl(pplayer->dev_fd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
     }
 
   /* Store the volume setting */
@@ -1479,10 +1487,10 @@ int nxplayer_pause(FAR struct nxplayer_s *pplayer)
   if (pplayer->state == NXPLAYER_STATE_PLAYING)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(pplayer->devFd, AUDIOIOC_PAUSE,
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_PAUSE,
           (unsigned long) pplayer->session);
 #else
-      ret = ioctl(pplayer->devFd, AUDIOIOC_PAUSE, 0);
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_PAUSE, 0);
 #endif
       if (ret == OK)
         {
@@ -1509,10 +1517,10 @@ int nxplayer_resume(FAR struct nxplayer_s *pplayer)
   if (pplayer->state == NXPLAYER_STATE_PAUSED)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(pplayer->devFd, AUDIOIOC_RESUME,
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_RESUME,
           (unsigned long) pplayer->session);
 #else
-      ret = ioctl(pplayer->devFd, AUDIOIOC_RESUME, 0);
+      ret = ioctl(pplayer->dev_fd, AUDIOIOC_RESUME, 0);
 #endif
       if (ret == OK)
         {
@@ -1566,7 +1574,9 @@ int nxplayer_fforward(FAR struct nxplayer_s *pplayer, uint8_t subsample)
   cap_desc.caps.ac_format.hw      = AUDIO_PU_SUBSAMPLE_FORWARD;
   cap_desc.caps.ac_controls.b[0]  = subsample;
 
-  ret = ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
+  ret = ioctl(pplayer->dev_fd,
+              AUDIOIOC_CONFIGURE,
+              (unsigned long) &cap_desc);
   if (ret < 0)
     {
       int errcode = errno;
@@ -1622,7 +1632,9 @@ int nxplayer_rewind(FAR struct nxplayer_s *pplayer, uint8_t subsample)
   cap_desc.caps.ac_format.hw      = AUDIO_PU_SUBSAMPLE_REWIND;
   cap_desc.caps.ac_controls.b[0]  = subsample;
 
-  ret = ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc);
+  ret = ioctl(pplayer->dev_fd,
+              AUDIOIOC_CONFIGURE,
+              (unsigned long) &cap_desc);
   if (ret < 0)
     {
       int errcode = errno;
@@ -1697,18 +1709,18 @@ int nxplayer_cancel_motion(FAR struct nxplayer_s *pplayer, bool paused)
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
 int nxplayer_setdevice(FAR struct nxplayer_s *pplayer,
-                       FAR const char *pDevice)
+                       FAR const char *pdevice)
 {
-  int                   tempFd;
+  int                   temp_fd;
   struct audio_caps_s   caps;
 
   DEBUGASSERT(pplayer != NULL);
-  DEBUGASSERT(pDevice != NULL);
+  DEBUGASSERT(pdevice != NULL);
 
   /* Try to open the device */
 
-  tempFd = open(pDevice, O_RDWR);
-  if (tempFd == -1)
+  temp_fd = open(pdevice, O_RDWR);
+  if (temp_fd == -1)
     {
       /* Error opening the device */
 
@@ -1720,21 +1732,21 @@ int nxplayer_setdevice(FAR struct nxplayer_s *pplayer,
   caps.ac_len     = sizeof(caps);
   caps.ac_type    = AUDIO_TYPE_QUERY;
   caps.ac_subtype = AUDIO_TYPE_QUERY;
-  if (ioctl(tempFd, AUDIOIOC_GETCAPS, (unsigned long) &caps) != caps.ac_len)
+  if (ioctl(temp_fd, AUDIOIOC_GETCAPS, (unsigned long) &caps) != caps.ac_len)
     {
       /* Not an Audio device! */
 
-      close(tempFd);
+      close(temp_fd);
       return -ENODEV;
     }
 
   /* Close the file */
 
-  close(tempFd);
+  close(temp_fd);
 
   /* Save the path and format capabilities of the preferred device */
 
-  strncpy(pplayer->prefdevice, pDevice, sizeof(pplayer->prefdevice));
+  strncpy(pplayer->prefdevice, pdevice, sizeof(pplayer->prefdevice));
   pplayer->prefformat = caps.ac_format.b[0] | (caps.ac_format.b[1] << 8);
   pplayer->preftype = caps.ac_controls.b[0];
 
@@ -1774,15 +1786,15 @@ int nxplayer_stop(FAR struct nxplayer_s *pplayer)
 
   /* Notify the playback thread that it needs to cancel the playback */
 
-  term_msg.msgId = AUDIO_MSG_STOP;
+  term_msg.msg_id = AUDIO_MSG_STOP;
   term_msg.u.data = 0;
   mq_send(pplayer->mq, (FAR const char *)&term_msg, sizeof(term_msg),
           CONFIG_NXPLAYER_MSG_PRIO);
 
   /* Join the thread.  The thread will do all the cleanup. */
 
-  pthread_join(pplayer->playId, &value);
-  pplayer->playId = 0;
+  pthread_join(pplayer->play_id, &value);
+  pplayer->play_id = 0;
 
   return OK;
 }
@@ -1798,7 +1810,7 @@ int nxplayer_stop(FAR struct nxplayer_s *pplayer)
  *
  * Input:
  *   pplayer    Pointer to the initialized MPlayer context
- *   pFilename  Pointer to the filename to play
+ *   pfilename  Pointer to the filename to play
  *   filefmt    Format of the file or AUD_FMT_UNDEF if unknown / to be
  *              determined by nxplayer_playfile()
  *   nchannels  channels num (raw data playback needed)
@@ -1816,7 +1828,7 @@ int nxplayer_stop(FAR struct nxplayer_s *pplayer)
  ****************************************************************************/
 
 static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
-                                 FAR const char *pFilename, int filefmt,
+                                 FAR const char *pfilename, int filefmt,
                                  int subfmt, uint8_t nchannels,
                                  uint8_t bpsamp, uint32_t samprate)
 {
@@ -1832,7 +1844,7 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
   int                 ret;
 
   DEBUGASSERT(pplayer != NULL);
-  DEBUGASSERT(pFilename != NULL);
+  DEBUGASSERT(pfilename != NULL);
 
   if (pplayer->state != NXPLAYER_STATE_IDLE)
     {
@@ -1840,42 +1852,42 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
     }
 
   audinfo("==============================\n");
-  audinfo("Playing file %s\n", pFilename);
+  audinfo("Playing file %s\n", pfilename);
   audinfo("==============================\n");
 
   /* Test that the specified file exists */
 
 #ifdef CONFIG_NXPLAYER_HTTP_STREAMING_SUPPORT
-  if ((pplayer->fd = _open_with_http(pFilename)) == -1)
+  if ((pplayer->fd = _open_with_http(pfilename)) == -1)
 #else
-  if ((pplayer->fd = open(pFilename, O_RDONLY)) == -1)
+  if ((pplayer->fd = open(pfilename, O_RDONLY)) == -1)
 #endif
     {
       /* File not found.  Test if its in the mediadir */
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR
-      snprintf(path, sizeof(path), "%s/%s", pplayer->mediadir, pFilename);
+      snprintf(path, sizeof(path), "%s/%s", pplayer->mediadir, pfilename);
 
       if ((pplayer->fd = open(path, O_RDONLY)) == -1)
         {
 #ifdef CONFIG_NXPLAYER_MEDIA_SEARCH
           /* File not found in the media dir.  Do a search */
 
-          if (nxplayer_mediasearch(pplayer, pFilename, path,
+          if (nxplayer_mediasearch(pplayer, pfilename, path,
                                    sizeof(path)) != OK)
             {
               auderr("ERROR: Could not find file\n");
               return -ENOENT;
             }
 #else
-          auderr("ERROR: Could not open %s or %s\n", pFilename, path);
+          auderr("ERROR: Could not open %s or %s\n", pfilename, path);
           return -ENOENT;
 #endif /* CONFIG_NXPLAYER_MEDIA_SEARCH */
         }
 
 #else   /* CONFIG_NXPLAYER_INCLUDE_MEDIADIR */
 
-      auderr("ERROR: Could not open %s\n", pFilename);
+      auderr("ERROR: Could not open %s\n", pfilename);
       return -ENOENT;
 #endif /* CONFIG_NXPLAYER_INCLUDE_MEDIADIR */
     }
@@ -1885,7 +1897,7 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
 
   if (filefmt == AUDIO_FMT_UNDEF)
     {
-      filefmt = nxplayer_fmtfromextension(pplayer, pFilename, &tmpsubfmt);
+      filefmt = nxplayer_fmtfromextension(pplayer, pfilename, &tmpsubfmt);
     }
 #endif
 
@@ -1930,10 +1942,10 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
   /* Try to reserve the device */
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-  ret = ioctl(pplayer->devFd, AUDIOIOC_RESERVE,
+  ret = ioctl(pplayer->dev_fd, AUDIOIOC_RESERVE,
               (unsigned long)&pplayer->session);
 #else
-  ret = ioctl(pplayer->devFd, AUDIOIOC_RESERVE, 0);
+  ret = ioctl(pplayer->dev_fd, AUDIOIOC_RESERVE, 0);
 #endif
   if (ret < 0)
     {
@@ -1956,7 +1968,7 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
       cap_desc.caps.ac_controls.b[3]  = samprate >> 16;
       cap_desc.caps.ac_controls.b[2]  = bpsamp;
 
-      ioctl(pplayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long)&cap_desc);
+      ioctl(pplayer->dev_fd, AUDIOIOC_CONFIGURE, (unsigned long)&cap_desc);
     }
 
   /* Create a message queue for the playthread */
@@ -1981,15 +1993,15 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
 
   /* Register our message queue with the audio device */
 
-  ioctl(pplayer->devFd, AUDIOIOC_REGISTERMQ, (unsigned long) pplayer->mq);
+  ioctl(pplayer->dev_fd, AUDIOIOC_REGISTERMQ, (unsigned long) pplayer->mq);
 
   /* Check if there was a previous thread and join it if there was
    * to perform clean-up.
    */
 
-  if (pplayer->playId != 0)
+  if (pplayer->play_id != 0)
     {
-      pthread_join(pplayer->playId, &value);
+      pthread_join(pplayer->play_id, &value);
     }
 
   /* Start the playfile thread to stream the media file to the
@@ -2008,7 +2020,7 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
    */
 
   nxplayer_reference(pplayer);
-  ret = pthread_create(&pplayer->playId, &tattr, nxplayer_playthread,
+  ret = pthread_create(&pplayer->play_id, &tattr, nxplayer_playthread,
                        (pthread_addr_t) pplayer);
   if (ret != OK)
     {
@@ -2018,12 +2030,12 @@ static int nxplayer_playinternal(FAR struct nxplayer_s *pplayer,
 
   /* Name the thread */
 
-  pthread_setname_np(pplayer->playId, "playthread");
+  pthread_setname_np(pplayer->play_id, "playthread");
   return OK;
 
 err_out:
-  close(pplayer->devFd);
-  pplayer->devFd = -1;
+  close(pplayer->dev_fd);
+  pplayer->dev_fd = -1;
 
 err_out_nodev:
   if (0 < pplayer->fd)
@@ -2045,7 +2057,7 @@ err_out_nodev:
  *
  * Input:
  *   pplayer    Pointer to the initialized MPlayer context
- *   pFilename  Pointer to the filename to play
+ *   pfilename  Pointer to the filename to play
  *   filefmt    Format of the file or AUD_FMT_UNDEF if unknown / to be
  *              determined by nxplayer_playfile()
  *
@@ -2059,9 +2071,9 @@ err_out_nodev:
  ****************************************************************************/
 
 int nxplayer_playfile(FAR struct nxplayer_s *pplayer,
-                      FAR const char *pFilename, int filefmt, int subfmt)
+                      FAR const char *pfilename, int filefmt, int subfmt)
 {
-  return nxplayer_playinternal(pplayer, pFilename, filefmt, subfmt, 0, 0, 0);
+  return nxplayer_playinternal(pplayer, pfilename, filefmt, subfmt, 0, 0, 0);
 }
 
 /****************************************************************************
@@ -2074,7 +2086,7 @@ int nxplayer_playfile(FAR struct nxplayer_s *pplayer,
  *
  * Input:
  *   pplayer    Pointer to the initialized MPlayer context
- *   pFilename  Pointer to the filename to play
+ *   pfilename  Pointer to the filename to play
  *   nchannels  channel num
  *   bpsampe    bit width
  *   samprate   sample rate
@@ -2089,7 +2101,7 @@ int nxplayer_playfile(FAR struct nxplayer_s *pplayer,
  ****************************************************************************/
 
 int nxplayer_playraw(FAR struct nxplayer_s *pplayer,
-                     FAR const char *pFilename, uint8_t nchannels,
+                     FAR const char *pfilename, uint8_t nchannels,
                      uint8_t bpsamp, uint32_t samprate)
 {
   if (nchannels == 0)
@@ -2107,7 +2119,7 @@ int nxplayer_playraw(FAR struct nxplayer_s *pplayer,
       samprate = 48000;
     }
 
-  return nxplayer_playinternal(pplayer, pFilename, AUDIO_FMT_PCM, 0,
+  return nxplayer_playinternal(pplayer, pfilename, AUDIO_FMT_PCM, 0,
                                nchannels, bpsamp, samprate);
 }
 
@@ -2155,7 +2167,7 @@ FAR struct nxplayer_s *nxplayer_create(void)
   /* Initialize the context data */
 
   pplayer->state = NXPLAYER_STATE_IDLE;
-  pplayer->devFd = -1;
+  pplayer->dev_fd = -1;
   pplayer->fd = -1;
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
   pplayer->prefdevice[0] = '\0';
@@ -2163,7 +2175,7 @@ FAR struct nxplayer_s *nxplayer_create(void)
   pplayer->preftype = 0;
 #endif
   pplayer->mq = NULL;
-  pplayer->playId = 0;
+  pplayer->play_id = 0;
   pplayer->crefs = 1;
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
@@ -2225,11 +2237,11 @@ void nxplayer_release(FAR struct nxplayer_s *pplayer)
 
   /* Check if there was a previous thread and join it if there was */
 
-  if (pplayer->playId != 0)
+  if (pplayer->play_id != 0)
     {
       sem_post(&pplayer->sem);
-      pthread_join(pplayer->playId, &value);
-      pplayer->playId = 0;
+      pthread_join(pplayer->play_id, &value);
+      pplayer->play_id = 0;
 
       while (sem_wait(&pplayer->sem) < 0)
         {
@@ -2322,12 +2334,12 @@ void nxplayer_detach(FAR struct nxplayer_s *pplayer)
         }
     }
 
-  if (pplayer->playId != NULL)
+  if (pplayer->play_id != NULL)
     {
       /* Do a pthread detach */
 
-      pthread_detach(pplayer->playId);
-      pplayer->playId = NULL;
+      pthread_detach(pplayer->play_id);
+      pplayer->play_id = NULL;
     }
 
   sem_post(&pplayer->sem);
@@ -2345,7 +2357,7 @@ void nxplayer_detach(FAR struct nxplayer_s *pplayer)
 #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET
 int nxplayer_systemreset(FAR struct nxplayer_s *pplayer)
 {
-  struct dirent *pDevice;
+  struct dirent *pdevice;
   DIR           *dirp;
   char           path[64];
 
@@ -2365,7 +2377,7 @@ int nxplayer_systemreset(FAR struct nxplayer_s *pplayer)
       return -ENODEV;
     }
 
-  while ((pDevice = readdir(dirp)) != NULL)
+  while ((pdevice = readdir(dirp)) != NULL)
     {
       /* We found the next device.  Try to open it and
        * get its audio capabilities.
@@ -2373,29 +2385,29 @@ int nxplayer_systemreset(FAR struct nxplayer_s *pplayer)
 
 #ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH
 #ifdef CONFIG_AUDIO_DEV_ROOT
-      snprintf(path, sizeof(path), "/dev/%s", pDevice->d_name);
+      snprintf(path, sizeof(path), "/dev/%s", pdevice->d_name);
 #else
       snprintf(path, sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s",
-               pDevice->d_name);
+               pdevice->d_name);
 #endif
 #else
-      snprintf(path,  sizeof(path), "/dev/audio/%s", pDevice->d_name);
+      snprintf(path,  sizeof(path), "/dev/audio/%s", pdevice->d_name);
 #endif
-      if ((pplayer->devFd = open(path, O_RDWR)) != -1)
+      if ((pplayer->dev_fd = open(path, O_RDWR)) != -1)
         {
           /* We have the device file open.  Now issue an
            * AUDIO ioctls to perform a HW reset
            */
 
-          ioctl(pplayer->devFd, AUDIOIOC_HWRESET, 0);
+          ioctl(pplayer->dev_fd, AUDIOIOC_HWRESET, 0);
 
           /* Now close the device */
 
-          close(pplayer->devFd);
+          close(pplayer->dev_fd);
         }
     }
 
-  pplayer->devFd = -1;
+  pplayer->dev_fd = -1;
   return OK;
 }
 #endif /* CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET */
diff --git a/system/nxplayer/nxplayer_main.c b/system/nxplayer/nxplayer_main.c
index b5041ef..1941527 100644
--- a/system/nxplayer/nxplayer_main.c
+++ b/system/nxplayer/nxplayer_main.c
@@ -67,10 +67,11 @@
  * Private Type Declarations
  ****************************************************************************/
 
-struct mp_cmd_s {
+struct mp_cmd_s
+{
   const char      *cmd;       /* The command text */
   const char      *arghelp;   /* Text describing the args */
-  nxplayer_func    pFunc;     /* Pointer to command handler */
+  nxplayer_func    pfunc;     /* Pointer to command handler */
   const char      *help;      /* The help text */
 };
 
@@ -78,45 +79,45 @@ struct mp_cmd_s {
  * Private Function Prototypes
  ****************************************************************************/
 
-static int nxplayer_cmd_quit(FAR struct nxplayer_s *pPlayer, char *parg);
-static int nxplayer_cmd_play(FAR struct nxplayer_s *pPlayer, char *parg);
-static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_quit(FAR struct nxplayer_s *pplayer, char *parg);
+static int nxplayer_cmd_play(FAR struct nxplayer_s *pplayer, char *parg);
+static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pplayer, char *parg);
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET
-static int nxplayer_cmd_reset(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_reset(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
-static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_device(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxplayer_cmd_pause(FAR struct nxplayer_s *pPlayer, char *parg);
-static int nxplayer_cmd_resume(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_pause(FAR struct nxplayer_s *pplayer, char *parg);
+static int nxplayer_cmd_resume(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR
-static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-static int nxplayer_cmd_stop(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_stop(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
-static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_volume(FAR struct nxplayer_s *pplayer, char *parg);
 #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE
-static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_balance(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 #endif
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char *parg);
-static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_bass(FAR struct nxplayer_s *pplayer, char *parg);
+static int nxplayer_cmd_treble(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_HELP
-static int nxplayer_cmd_help(FAR struct nxplayer_s *pPlayer, char *parg);
+static int nxplayer_cmd_help(FAR struct nxplayer_s *pplayer, char *parg);
 #endif
 
 /****************************************************************************
@@ -127,48 +128,134 @@ static struct mp_cmd_s g_nxplayer_cmds[] =
 {
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
 #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE
-  { "balance",  "d%",       nxplayer_cmd_balance,   NXPLAYER_HELP_TEXT(Set balance percentage (< 50% means more left)) },
+  {
+    "balance",
+    "d%",
+    nxplayer_cmd_balance,
+    NXPLAYER_HELP_TEXT(Set balance percentage (< 50% means more left))
+  },
 #endif
 #endif
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-  { "bass",     "d%",       nxplayer_cmd_bass,      NXPLAYER_HELP_TEXT(Set bass level percentage) },
+  {
+    "bass",
+    "d%",
+    nxplayer_cmd_bass,
+    NXPLAYER_HELP_TEXT(Set bass level percentage)
+  },
 #endif
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
-  { "device",   "devfile",  nxplayer_cmd_device,    NXPLAYER_HELP_TEXT(Specify a preferred audio device) },
+  {
+    "device",
+    "devfile",
+    nxplayer_cmd_device,
+    NXPLAYER_HELP_TEXT(Specify a preferred audio device)
+  },
 #endif
 #ifdef CONFIG_NXPLAYER_INCLUDE_HELP
-  { "h",        "",         nxplayer_cmd_help,      NXPLAYER_HELP_TEXT(Display help for commands) },
-  { "help",     "",         nxplayer_cmd_help,      NXPLAYER_HELP_TEXT(Display help for commands) },
+  {
+    "h",
+    "",
+    nxplayer_cmd_help,
+    NXPLAYER_HELP_TEXT(Display help for commands)
+  },
+  {
+    "help",
+    "",
+    nxplayer_cmd_help,
+    NXPLAYER_HELP_TEXT(Display help for commands)
+  },
 #endif
 #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR
-  { "mediadir", "path",     nxplayer_cmd_mediadir,  NXPLAYER_HELP_TEXT(Change the media directory) },
-#endif
-  { "play",     "filename", nxplayer_cmd_play,      NXPLAYER_HELP_TEXT(Play a media file) },
-  { "playraw",  "filename", nxplayer_cmd_playraw,   NXPLAYER_HELP_TEXT(Play a raw data file) },
+  {
+    "mediadir",
+    "path",
+     nxplayer_cmd_mediadir,
+     NXPLAYER_HELP_TEXT(Change the media directory)
+  },
+#endif
+  {
+    "play",
+    "filename",
+    nxplayer_cmd_play,
+    NXPLAYER_HELP_TEXT(Play a media file)
+  },
+  {
+    "playraw",
+    "filename",
+    nxplayer_cmd_playraw,
+    NXPLAYER_HELP_TEXT(Play a raw data file)
+  },
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-  { "pause",    "",         nxplayer_cmd_pause,     NXPLAYER_HELP_TEXT(Pause playback) },
+  {
+    "pause",
+    "",
+    nxplayer_cmd_pause,
+    NXPLAYER_HELP_TEXT(Pause playback)
+  },
 #endif
 #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET
-  { "reset",    "",         nxplayer_cmd_reset,     NXPLAYER_HELP_TEXT(Perform a HW reset) },
+  {
+    "reset",
+    "",
+    nxplayer_cmd_reset,
+    NXPLAYER_HELP_TEXT(Perform a HW reset)
+  },
 #endif
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-  { "resume",   "",         nxplayer_cmd_resume,    NXPLAYER_HELP_TEXT(Resume playback) },
+  {
+    "resume",
+    "",
+    nxplayer_cmd_resume,
+    NXPLAYER_HELP_TEXT(Resume playback)
+  },
 #endif
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-  { "stop",     "",         nxplayer_cmd_stop,      NXPLAYER_HELP_TEXT(Stop playback) },
-#endif
-  { "tone",     "freq secs", NULL,                  NXPLAYER_HELP_TEXT(Produce a pure tone) },
+  {
+    "stop",
+    "",
+    nxplayer_cmd_stop,
+    NXPLAYER_HELP_TEXT(Stop playback)
+  },
+#endif
+  {
+    "tone",
+    "freq secs",
+    NULL,
+    NXPLAYER_HELP_TEXT(Produce a pure tone)
+  },
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-  { "treble",   "d%",       nxplayer_cmd_treble,    NXPLAYER_HELP_TEXT(Set treble level percentage) },
-#endif
-  { "q",        "",         nxplayer_cmd_quit,      NXPLAYER_HELP_TEXT(Exit NxPlayer) },
-  { "quit",     "",         nxplayer_cmd_quit,      NXPLAYER_HELP_TEXT(Exit NxPlayer) },
+  {
+    "treble",
+    "d%",
+    nxplayer_cmd_treble,
+    NXPLAYER_HELP_TEXT(Set treble level percentage)
+  },
+#endif
+  {
+    "q",
+    "",
+    nxplayer_cmd_quit,
+    NXPLAYER_HELP_TEXT(Exit NxPlayer)
+  },
+  {
+    "quit",
+    "",
+    nxplayer_cmd_quit,
+    NXPLAYER_HELP_TEXT(Exit NxPlayer)
+  },
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
-  { "volume",   "d%",       nxplayer_cmd_volume,    NXPLAYER_HELP_TEXT(Set volume to level specified) }
+  {
+    "volume",
+    "d%",
+    nxplayer_cmd_volume,
+    NXPLAYER_HELP_TEXT(Set volume to level specified)
+  }
 #endif
 };
 
-static const int g_nxplayer_cmd_count = sizeof(g_nxplayer_cmds) / sizeof(struct mp_cmd_s);
+static const int g_nxplayer_cmd_count = sizeof(g_nxplayer_cmds) /
+                                        sizeof(struct mp_cmd_s);
 
 /****************************************************************************
  * Private Functions
@@ -182,13 +269,13 @@ static const int g_nxplayer_cmd_count = sizeof(g_nxplayer_cmds) / sizeof(struct
  *
  ****************************************************************************/
 
-static int nxplayer_cmd_play(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_play(FAR struct nxplayer_s *pplayer, char *parg)
 {
   int     ret;
 
   /* Try to play the file specified */
 
-  ret = nxplayer_playfile(pPlayer, parg, AUDIO_FMT_UNDEF, AUDIO_FMT_UNDEF);
+  ret = nxplayer_playfile(pplayer, parg, AUDIO_FMT_UNDEF, AUDIO_FMT_UNDEF);
 
   /* nxplayer_playfile returned values:
    *
@@ -236,7 +323,7 @@ static int nxplayer_cmd_play(FAR struct nxplayer_s *pPlayer, char *parg)
  *
  ****************************************************************************/
 
-static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pplayer, char *parg)
 {
   int ret;
   int channels = 0;
@@ -248,7 +335,7 @@ static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pPlayer, char *parg)
 
   /* Try to play the file specified */
 
-  ret = nxplayer_playraw(pPlayer, filename, channels, bpsamp, samprate);
+  ret = nxplayer_playraw(pplayer, filename, channels, bpsamp, samprate);
 
   /* nxplayer_playfile returned values:
    *
@@ -296,7 +383,7 @@ static int nxplayer_cmd_playraw(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
-static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_volume(FAR struct nxplayer_s *pplayer, char *parg)
 {
   uint16_t   percent;
 
@@ -304,14 +391,14 @@ static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char *parg)
 
   if (parg == NULL || *parg == '\0')
     {
-      printf("volume: %d\n", pPlayer->volume / 10);
+      printf("volume: %d\n", pplayer->volume / 10);
     }
   else
     {
       /* Get the percentage value from the argument */
 
       percent = (uint16_t) (atof(parg) * 10.0);
-      nxplayer_setvolume(pPlayer, percent);
+      nxplayer_setvolume(pplayer, percent);
     }
 
   return OK;
@@ -326,7 +413,7 @@ static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_bass(FAR struct nxplayer_s *pplayer, char *parg)
 {
   uint8_t   level_percent;
 
@@ -334,14 +421,14 @@ static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char *parg)
 
   if (parg == NULL || *parg == '\0')
     {
-      printf("bass: %d\n", pPlayer->bass);
+      printf("bass: %d\n", pplayer->bass);
     }
   else
     {
       /* Get the level and range percentage value from the argument */
 
       level_percent = (uint8_t) atoi(parg);
-      nxplayer_setbass(pPlayer, level_percent);
+      nxplayer_setbass(pplayer, level_percent);
     }
 
   return OK;
@@ -356,7 +443,7 @@ static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_TONE
-static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_treble(FAR struct nxplayer_s *pplayer, char *parg)
 {
   uint8_t   level_percent;
 
@@ -364,14 +451,14 @@ static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char *parg)
 
   if (parg == NULL || *parg == '\0')
     {
-      printf("treble: %d\n", pPlayer->treble);
+      printf("treble: %d\n", pplayer->treble);
     }
   else
     {
       /* Get the level and range percentage value from the argument */
 
       level_percent = (uint8_t) atoi(parg);
-      nxplayer_settreble(pPlayer, level_percent);
+      nxplayer_settreble(pplayer, level_percent);
     }
 
   return OK;
@@ -387,7 +474,7 @@ static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char *parg)
 
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
 #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE
-static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_balance(FAR struct nxplayer_s *pplayer, char *parg)
 {
   uint16_t   percent;
 
@@ -395,14 +482,14 @@ static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char *parg)
 
   if (parg == NULL || *parg == '\0')
     {
-      printf("balance: %d\n", pPlayer->volume / 10);
+      printf("balance: %d\n", pplayer->volume / 10);
     }
   else
     {
       /* Get the percentage value from the argument */
 
       percent = (uint16_t) (atof(parg) * 10.0);
-      nxplayer_setbalance(pPlayer, percent);
+      nxplayer_setbalance(pplayer, percent);
     }
 
   return OK;
@@ -418,9 +505,9 @@ static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET
-static int nxplayer_cmd_reset(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_reset(FAR struct nxplayer_s *pplayer, char *parg)
 {
-  nxplayer_systemreset(pPlayer);
+  nxplayer_systemreset(pplayer);
 
   return OK;
 }
@@ -435,14 +522,14 @@ static int nxplayer_cmd_reset(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR
-static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pplayer, char *parg)
 {
   /* If no arg given, then print current media dir */
 
   if (parg == NULL || *parg == '\0')
-    printf("%s\n", pPlayer->mediadir);
+    printf("%s\n", pplayer->mediadir);
   else
-    nxplayer_setmediadir(pPlayer, parg);
+    nxplayer_setmediadir(pplayer, parg);
 
   return OK;
 }
@@ -457,11 +544,11 @@ static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-static int nxplayer_cmd_stop(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_stop(FAR struct nxplayer_s *pplayer, char *parg)
 {
   /* Stop the playback */
 
-  nxplayer_stop(pPlayer);
+  nxplayer_stop(pplayer);
 
   return OK;
 }
@@ -476,11 +563,11 @@ static int nxplayer_cmd_stop(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxplayer_cmd_pause(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_pause(FAR struct nxplayer_s *pplayer, char *parg)
 {
   /* Pause the playback */
 
-  nxplayer_pause(pPlayer);
+  nxplayer_pause(pplayer);
 
   return OK;
 }
@@ -495,11 +582,11 @@ static int nxplayer_cmd_pause(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxplayer_cmd_resume(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_resume(FAR struct nxplayer_s *pplayer, char *parg)
 {
   /* Resume the playback */
 
-  nxplayer_resume(pPlayer);
+  nxplayer_resume(pplayer);
 
   return OK;
 }
@@ -513,14 +600,14 @@ static int nxplayer_cmd_resume(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE
-static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_device(FAR struct nxplayer_s *pplayer, char *parg)
 {
   int     ret;
   char    path[32];
 
   /* First try to open the file directly */
 
-  ret = nxplayer_setdevice(pPlayer, parg);
+  ret = nxplayer_setdevice(pplayer, parg);
   if (ret == -ENOENT)
     {
       /* Append the /dev/audio path and try again */
@@ -534,7 +621,7 @@ static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char *parg)
 #else
       snprintf(path, sizeof(path), "/dev/audio/%s", parg);
 #endif
-      ret = nxplayer_setdevice(pPlayer, path);
+      ret = nxplayer_setdevice(pplayer, path);
     }
 
   /* Test if the device file exists */
@@ -572,12 +659,12 @@ static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char *parg)
  *   nxplayer_cmd_quit() terminates the application
  ****************************************************************************/
 
-static int nxplayer_cmd_quit(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_quit(FAR struct nxplayer_s *pplayer, char *parg)
 {
   /* Stop the playback if any */
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-  nxplayer_stop(pPlayer);
+  nxplayer_stop(pplayer);
 #endif
 
   return OK;
@@ -591,7 +678,7 @@ static int nxplayer_cmd_quit(FAR struct nxplayer_s *pPlayer, char *parg)
  ****************************************************************************/
 
 #ifdef CONFIG_NXPLAYER_INCLUDE_HELP
-static int nxplayer_cmd_help(FAR struct nxplayer_s *pPlayer, char *parg)
+static int nxplayer_cmd_help(FAR struct nxplayer_s *pplayer, char *parg)
 {
   int   len;
   int   maxlen = 0;
@@ -665,7 +752,7 @@ int main(int argc, FAR char *argv[])
   char                    buffer[CONFIG_NSH_LINELEN];
   int                     len, x, running;
   char                    *cmd, *arg;
-  FAR struct nxplayer_s   *pPlayer;
+  FAR struct nxplayer_s   *pplayer;
 
   printf("NxPlayer version " NXPLAYER_VER "\n");
   printf("h for commands, q to exit\n");
@@ -673,8 +760,8 @@ int main(int argc, FAR char *argv[])
 
   /* Initialize our NxPlayer context */
 
-  pPlayer = nxplayer_create();
-  if (pPlayer == NULL)
+  pplayer = nxplayer_create();
+  if (pplayer == NULL)
     {
       printf("Error:  Out of RAM\n");
       return -ENOMEM;
@@ -728,14 +815,14 @@ int main(int argc, FAR char *argv[])
                     {
                       /* Command found.  Call it's handler if not NULL */
 
-                      if (g_nxplayer_cmds[x].pFunc != NULL)
+                      if (g_nxplayer_cmds[x].pfunc != NULL)
                         {
-                          g_nxplayer_cmds[x].pFunc(pPlayer, arg);
+                          g_nxplayer_cmds[x].pfunc(pplayer, arg);
                         }
 
                       /* Test if it is a quit command */
 
-                      if (g_nxplayer_cmds[x].pFunc == nxplayer_cmd_quit)
+                      if (g_nxplayer_cmds[x].pfunc == nxplayer_cmd_quit)
                         {
                           running = FALSE;
                         }
@@ -759,9 +846,9 @@ int main(int argc, FAR char *argv[])
 
   /* Release the NxPlayer context */
 
-  /* nxplayer_detach(pPlayer); */
+  /* nxplayer_detach(pplayer); */
 
-  nxplayer_release(pPlayer);
+  nxplayer_release(pplayer);
 
   return OK;
 }
diff --git a/system/nxrecorder/nxrecorder.c b/system/nxrecorder/nxrecorder.c
index af96d05..0464831 100644
--- a/system/nxrecorder/nxrecorder.c
+++ b/system/nxrecorder/nxrecorder.c
@@ -111,8 +111,8 @@ static int nxrecorder_opendevice(FAR struct nxrecorder_s *precorder)
 
       /* Device supports the format.  Open the device file. */
 
-      precorder->devFd = open(precorder->device, O_RDWR);
-      if (precorder->devFd == -1)
+      precorder->dev_fd = open(precorder->device, O_RDWR);
+      if (precorder->dev_fd == -1)
         {
           int errcode = errno;
           DEBUGASSERT(errcode > 0);
@@ -128,7 +128,7 @@ static int nxrecorder_opendevice(FAR struct nxrecorder_s *precorder)
   /* Device not found */
 
   auderr("ERROR: Device not found\n");
-  precorder->devFd = -1;
+  precorder->dev_fd = -1;
   return -ENODEV;
 }
 
@@ -186,10 +186,10 @@ static int nxrecorder_writebuffer(FAR struct nxrecorder_s *precorder,
  *   called with a buffer of data to be enqueued in the audio stream.
  *
  *   Be we may also receive an empty length buffer (with only the
- *   AUDIO_APB_FINAL set) in the event of certain write error occurs or in the
- *   event that the file was an exact multiple of the nmaxbytes size of the
- *   audio buffer.  In that latter case, we have an end of file with no bytes
- *   written.
+ *   AUDIO_APB_FINAL set) in the event of certain write error occurs or in
+ *   the event that the file was an exact multiple of the nmaxbytes size of
+ *   the audio buffer.
+ *   In that latter case, we have an end of file with no bytes written.
  *
  *   These infrequent zero length buffers have to be passed through because
  *   the include the AUDIO_APB_FINAL flag that is needed to terminate the
@@ -216,9 +216,9 @@ static int nxrecorder_enqueuebuffer(FAR struct nxrecorder_s *precorder,
   bufdesc.session   = precorder->session;
 #endif
   bufdesc.numbytes  = apb->nbytes;
-  bufdesc.u.pBuffer = apb;
+  bufdesc.u.pbuffer = apb;
 
-  ret = ioctl(precorder->devFd, AUDIOIOC_ENQUEUEBUFFER,
+  ret = ioctl(precorder->dev_fd, AUDIOIOC_ENQUEUEBUFFER,
               (unsigned long)&bufdesc);
   if (ret < 0)
     {
@@ -271,7 +271,7 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
   /* Query the audio device for it's preferred buffer size / qty */
 
 #ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
-  if ((ret = ioctl(precorder->devFd, AUDIOIOC_GETBUFFERINFO,
+  if ((ret = ioctl(precorder->dev_fd, AUDIOIOC_GETBUFFERINFO,
           (unsigned long) &buf_info)) != OK)
     {
       /* Driver doesn't report it's buffer size.  Use our default. */
@@ -282,7 +282,8 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
 
   /* Create array of pointers to buffers */
 
-  pbuffers = (FAR struct ap_buffer_s **) malloc(buf_info.nbuffers * sizeof(FAR void *));
+  pbuffers = (FAR struct ap_buffer_s **) malloc(buf_info.nbuffers *
+                                                sizeof(FAR void *));
   if (pbuffers == NULL)
     {
       /* Error allocating memory for buffer storage! */
@@ -320,9 +321,9 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
 #else
       buf_desc.numbytes = CONFIG_AUDIO_BUFFER_NUMBYTES;
 #endif
-      buf_desc.u.ppBuffer = &pbuffers[x];
+      buf_desc.u.pbuffer = &pbuffers[x];
 
-      ret = ioctl(precorder->devFd, AUDIOIOC_ALLOCBUFFER,
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_ALLOCBUFFER,
                   (unsigned long) &buf_desc);
       if (ret != sizeof(buf_desc))
         {
@@ -388,10 +389,10 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
   if (running && !failed)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(precorder->devFd, AUDIOIOC_START,
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_START,
                   (unsigned long) precorder->session);
 #else
-      ret = ioctl(precorder->devFd, AUDIOIOC_START, 0);
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_START, 0);
 #endif
 
       if (ret < 0)
@@ -410,7 +411,6 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
       /* Indicate we are recording a file */
 
       precorder->state = NXRECORDER_STATE_RECORDING;
-
     }
 
   /* Loop until we specifically break.  running == true means that we are
@@ -451,7 +451,7 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
 
       /* Perform operation based on message id */
 
-      switch (msg.msgId)
+      switch (msg.msg_id)
         {
           /* An audio buffer is being dequeued by the driver */
 
@@ -461,7 +461,7 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
              * least one buffer.
              */
 
-            DEBUGASSERT(msg.u.pPtr && outstanding > 0);
+            DEBUGASSERT(msg.u.ptr && outstanding > 0);
             outstanding--;
 #endif
 
@@ -474,7 +474,7 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
               {
                 /* Write the next buffer of data */
 
-                ret = nxrecorder_writebuffer(precorder, msg.u.pPtr);
+                ret = nxrecorder_writebuffer(precorder, msg.u.ptr);
                 if (ret != OK)
                   {
                     /* Out of data.  Stay in the loop until the device sends
@@ -489,7 +489,7 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
 
                 else
                   {
-                    ret = nxrecorder_enqueuebuffer(precorder, msg.u.pPtr);
+                    ret = nxrecorder_enqueuebuffer(precorder, msg.u.ptr);
                     if (ret != OK)
                       {
                         /* There is some issue from the audio driver.
@@ -525,15 +525,16 @@ static void *nxrecorder_recordthread(pthread_addr_t pvarg)
           /* Someone wants to stop the recordback. */
 
           case AUDIO_MSG_STOP:
+
             /* Send a stop message to the device */
 
             audinfo("Stopping! outstanding=%d\n", outstanding);
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-            ioctl(precorder->devFd, AUDIOIOC_STOP,
+            ioctl(precorder->dev_fd, AUDIOIOC_STOP,
                  (unsigned long) precorder->session);
 #else
-            ioctl(precorder->devFd, AUDIOIOC_STOP, 0);
+            ioctl(precorder->dev_fd, AUDIOIOC_STOP, 0);
 #endif
             /* Stay in the running loop (without sending more data).
              * we will need to recover our audio buffers.  We will
@@ -573,10 +574,12 @@ err_out:
           if (pbuffers[x] != NULL)
             {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-              buf_desc.session = pPlayer->session;
+              buf_desc.session = pplayer->session;
 #endif
-              buf_desc.u.pBuffer = pbuffers[x];
-              ioctl(precorder->devFd, AUDIOIOC_FREEBUFFER, (unsigned long) &buf_desc);
+              buf_desc.u.pbuffer = pbuffers[x];
+              ioctl(precorder->dev_fd,
+                    AUDIOIOC_FREEBUFFER,
+                    (unsigned long) &buf_desc);
             }
         }
 
@@ -593,21 +596,29 @@ err_out:
         if (pbuffers[x] != NULL)
           {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-            buf_desc.session = pPlayer->session;
+            buf_desc.session = pplayer->session;
 #endif
-            buf_desc.u.pBuffer = pbuffers[x];
-            ioctl(precorder->devFd, AUDIOIOC_FREEBUFFER, (unsigned long) &buf_desc);
+            buf_desc.u.pbuffer = pbuffers[x];
+            ioctl(precorder->dev_fd,
+                  AUDIOIOC_FREEBUFFER,
+                  (unsigned long) &buf_desc);
           }
       }
 #endif
 
   /* Unregister the message queue and release the session */
 
-  ioctl(precorder->devFd, AUDIOIOC_UNREGISTERMQ, (unsigned long) precorder->mq);
+  ioctl(precorder->dev_fd,
+        AUDIOIOC_UNREGISTERMQ,
+        (unsigned long) precorder->mq);
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-  ioctl(precorder->devFd, AUDIOIOC_RELEASE, (unsigned long) precorder->session);
+  ioctl(precorder->dev_fd,
+        AUDIOIOC_RELEASE,
+        (unsigned long) precorder->session);
 #else
-  ioctl(precorder->devFd, AUDIOIOC_RELEASE, 0);
+  ioctl(precorder->dev_fd,
+        AUDIOIOC_RELEASE,
+        0);
 #endif
 
   /* Cleanup */
@@ -624,8 +635,8 @@ err_out:
       precorder->fd = -1;                   /* Clear out the FD */
     }
 
-  close(precorder->devFd);                  /* Close the device */
-  precorder->devFd = -1;                    /* Mark device as closed */
+  close(precorder->dev_fd);                 /* Close the device */
+  precorder->dev_fd = -1;                   /* Mark device as closed */
   mq_close(precorder->mq);                  /* Close the message queue */
   mq_unlink(precorder->mqname);             /* Unlink the message queue */
   precorder->state = NXRECORDER_STATE_IDLE; /* Go to IDLE */
@@ -663,10 +674,10 @@ int nxrecorder_pause(FAR struct nxrecorder_s *precorder)
   if (precorder->state == NXRECORDER_STATE_RECORDING)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(precorder->devFd, AUDIOIOC_PAUSE,
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_PAUSE,
           (unsigned long) precorder->session);
 #else
-      ret = ioctl(precorder->devFd, AUDIOIOC_PAUSE, 0);
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_PAUSE, 0);
 #endif
       if (ret == OK)
         {
@@ -693,10 +704,10 @@ int nxrecorder_resume(FAR struct nxrecorder_s *precorder)
   if (precorder->state == NXRECORDER_STATE_PAUSED)
     {
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-      ret = ioctl(precorder->devFd, AUDIOIOC_RESUME,
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_RESUME,
           (unsigned long) precorder->session);
 #else
-      ret = ioctl(precorder->devFd, AUDIOIOC_RESUME, 0);
+      ret = ioctl(precorder->dev_fd, AUDIOIOC_RESUME, 0);
 #endif
       if (ret == OK)
         {
@@ -717,28 +728,28 @@ int nxrecorder_resume(FAR struct nxrecorder_s *precorder)
  ****************************************************************************/
 
 int nxrecorder_setdevice(FAR struct nxrecorder_s *precorder,
-                         FAR const char *pDevice)
+                         FAR const char *pdevice)
 {
-  int tempFd;
+  int temp_fd;
 
   DEBUGASSERT(precorder != NULL);
-  DEBUGASSERT(pDevice != NULL);
+  DEBUGASSERT(pdevice != NULL);
 
   /* Try to open the device */
 
-  tempFd = open(pDevice, O_RDWR);
-  if (tempFd == -1)
+  temp_fd = open(pdevice, O_RDWR);
+  if (temp_fd == -1)
     {
       /* Error opening the device */
 
       return -ENOENT;
     }
 
-  close(tempFd);
+  close(temp_fd);
 
   /* Save the path and format capabilities of the device */
 
-  strncpy(precorder->device, pDevice, sizeof(precorder->device));
+  strncpy(precorder->device, pdevice, sizeof(precorder->device));
 
   return OK;
 }
@@ -775,15 +786,15 @@ int nxrecorder_stop(FAR struct nxrecorder_s *precorder)
 
   /* Notify the recordback thread that it needs to cancel the recordback */
 
-  term_msg.msgId = AUDIO_MSG_STOP;
+  term_msg.msg_id = AUDIO_MSG_STOP;
   term_msg.u.data = 0;
   mq_send(precorder->mq, (FAR const char *)&term_msg, sizeof(term_msg),
           CONFIG_NXRECORDER_MSG_PRIO);
 
   /* Join the thread.  The thread will do all the cleanup. */
 
-  pthread_join(precorder->recordId, &value);
-  precorder->recordId = 0;
+  pthread_join(precorder->record_id, &value);
+  precorder->record_id = 0;
 
   return OK;
 }
@@ -797,7 +808,7 @@ int nxrecorder_stop(FAR struct nxrecorder_s *precorder)
  *   device.
  * Input:
  *   precorder  Pointer to the initialized MRecorder context
- *   pFilename  Pointer to the filename to record
+ *   pfilename  Pointer to the filename to record
  *   nchannels  channel num
  *   bpsampe    bit width
  *   samprate   sample rate
@@ -812,7 +823,7 @@ int nxrecorder_stop(FAR struct nxrecorder_s *precorder)
  ****************************************************************************/
 
 int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
-                         FAR const char *pFilename, uint8_t nchannels,
+                         FAR const char *pfilename, uint8_t nchannels,
                          uint8_t bpsamp, uint32_t samprate)
 {
   struct mq_attr           attr;
@@ -823,7 +834,7 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
   int                      ret;
 
   DEBUGASSERT(precorder != NULL);
-  DEBUGASSERT(pFilename != NULL);
+  DEBUGASSERT(pfilename != NULL);
 
   if (precorder->state != NXRECORDER_STATE_IDLE)
     {
@@ -831,17 +842,17 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
     }
 
   audinfo("==============================\n");
-  audinfo("Recording file %s\n", pFilename);
+  audinfo("Recording file %s\n", pfilename);
   audinfo("==============================\n");
 
   /* Test that the specified file exists */
 
-  if ((precorder->fd = open(pFilename, O_WRONLY | O_CREAT)) == -1)
+  if ((precorder->fd = open(pfilename, O_WRONLY | O_CREAT)) == -1)
     {
       /* File not found.  Test if its in the mediadir */
 
-        auderr("ERROR: Could not open %s\n", pFilename);
-        return -ENOENT;
+      auderr("ERROR: Could not open %s\n", pfilename);
+      return -ENOENT;
     }
 
   /* Try to open the device */
@@ -858,10 +869,10 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
   /* Try to reserve the device */
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
-  ret = ioctl(precorder->devFd, AUDIOIOC_RESERVE,
+  ret = ioctl(precorder->dev_fd, AUDIOIOC_RESERVE,
               (unsigned long)&precorder->session);
 #else
-  ret = ioctl(precorder->devFd, AUDIOIOC_RESERVE, 0);
+  ret = ioctl(precorder->dev_fd, AUDIOIOC_RESERVE, 0);
 #endif
   if (ret < 0)
     {
@@ -881,7 +892,7 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
   cap_desc.caps.ac_controls.hw[0] = samprate ? samprate : 48000;
   cap_desc.caps.ac_controls.b[3] = samprate >> 16;
   cap_desc.caps.ac_controls.b[2]  = bpsamp ? bpsamp : 16;
-  ret = ioctl(precorder->devFd, AUDIOIOC_CONFIGURE,
+  ret = ioctl(precorder->dev_fd, AUDIOIOC_CONFIGURE,
               (unsigned long)&cap_desc);
   if (ret < 0)
     {
@@ -911,15 +922,17 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
 
   /* Register our message queue with the audio device */
 
-  ioctl(precorder->devFd, AUDIOIOC_REGISTERMQ, (unsigned long)precorder->mq);
+  ioctl(precorder->dev_fd,
+        AUDIOIOC_REGISTERMQ,
+        (unsigned long)precorder->mq);
 
   /* Check if there was a previous thread and join it if there was
    * to perform clean-up.
    */
 
-  if (precorder->recordId != 0)
+  if (precorder->record_id != 0)
     {
-      pthread_join(precorder->recordId, &value);
+      pthread_join(precorder->record_id, &value);
     }
 
   /* Start the recordfile thread to stream the media file to the
@@ -938,7 +951,9 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
    */
 
   nxrecorder_reference(precorder);
-  ret = pthread_create(&precorder->recordId, &tattr, nxrecorder_recordthread,
+  ret = pthread_create(&precorder->record_id,
+                       &tattr,
+                       nxrecorder_recordthread,
                        (pthread_addr_t) precorder);
   if (ret != OK)
     {
@@ -948,12 +963,12 @@ int nxrecorder_recordraw(FAR struct nxrecorder_s *precorder,
 
   /* Name the thread */
 
-  pthread_setname_np(precorder->recordId, "recordthread");
+  pthread_setname_np(precorder->record_id, "recordthread");
   return OK;
 
 err_out:
-  close(precorder->devFd);
-  precorder->devFd = -1;
+  close(precorder->dev_fd);
+  precorder->dev_fd = -1;
 
 err_out_nodev:
   if (0 < precorder->fd)
@@ -969,8 +984,8 @@ err_out_nodev:
  * Name: nxrecorder_create
  *
  *   nxrecorder_create() allocates and initializes a nxrecorder context for
- *   use by further nxrecorder operations.  This routine must be called before
- *   to perform the create for proper reference counting.
+ *   use by further nxrecorder operations.  This routine must be called
+ *   before to perform the create for proper reference counting.
  *
  * Input Parameters:  None
  *
@@ -985,7 +1000,8 @@ FAR struct nxrecorder_s *nxrecorder_create(void)
 
   /* Allocate the memory */
 
-  precorder = (FAR struct nxrecorder_s *) malloc(sizeof(struct nxrecorder_s));
+  precorder = (FAR struct nxrecorder_s *) malloc(
+                                           sizeof(struct nxrecorder_s));
   if (precorder == NULL)
     {
       return NULL;
@@ -994,11 +1010,11 @@ FAR struct nxrecorder_s *nxrecorder_create(void)
   /* Initialize the context data */
 
   precorder->state = NXRECORDER_STATE_IDLE;
-  precorder->devFd = -1;
+  precorder->dev_fd = -1;
   precorder->fd = -1;
   precorder->device[0] = '\0';
   precorder->mq = NULL;
-  precorder->recordId = 0;
+  precorder->record_id = 0;
   precorder->crefs = 1;
 
 #ifdef CONFIG_AUDIO_MULTI_SESSION
@@ -1044,11 +1060,11 @@ void nxrecorder_release(FAR struct nxrecorder_s *precorder)
 
   /* Check if there was a previous thread and join it if there was */
 
-  if (precorder->recordId != 0)
+  if (precorder->record_id != 0)
     {
       sem_post(&precorder->sem);
-      pthread_join(precorder->recordId, &value);
-      precorder->recordId = 0;
+      pthread_join(precorder->record_id, &value);
+      precorder->record_id = 0;
 
       while (sem_wait(&precorder->sem) < 0)
         {
diff --git a/system/nxrecorder/nxrecorder_main.c b/system/nxrecorder/nxrecorder_main.c
index 22018d6..4b3042c 100644
--- a/system/nxrecorder/nxrecorder_main.c
+++ b/system/nxrecorder/nxrecorder_main.c
@@ -71,7 +71,7 @@ struct mp_cmd_s
 {
   const char      *cmd;       /* The command text */
   const char      *arghelp;   /* Text describing the args */
-  nxrecorder_func pFunc;      /* Pointer to command handler */
+  nxrecorder_func pfunc;      /* Pointer to command handler */
   const char      *help;      /* The help text */
 };
 
@@ -79,27 +79,27 @@ struct mp_cmd_s
  * Private Function Prototypes
  ****************************************************************************/
 
-static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *precorder,
                                FAR char *parg);
-static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *precorder,
                                     FAR char *parg);
-static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_device(FAR struct nxrecorder_s *precorder,
                                  FAR char *parg);
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *precorder,
                                 FAR char *parg);
-static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *precorder,
                                  FAR char *parg);
 #endif
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *precorder,
                                FAR char *parg);
 #endif
 
 #ifdef CONFIG_NXRECORDER_INCLUDE_HELP
-static int nxrecorder_cmd_help(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_help(FAR struct nxrecorder_s *precorder,
                                FAR char *parg);
 #endif
 
@@ -109,24 +109,70 @@ static int nxrecorder_cmd_help(FAR struct nxrecorder_s *pRecorder,
 
 static const struct mp_cmd_s g_nxrecorder_cmds[] =
 {
-  { "device",    "devfile",  nxrecorder_cmd_device,    NXRECORDER_HELP_TEXT(Specify a preferred audio device) },
+  {
+    "device",
+    "devfile",
+    nxrecorder_cmd_device,
+    NXRECORDER_HELP_TEXT(Specify a preferred audio device)
+  },
 #ifdef CONFIG_NXRECORDER_INCLUDE_HELP
-  { "h",         "",         nxrecorder_cmd_help,      NXRECORDER_HELP_TEXT(Display help for commands) },
-  { "help",      "",         nxrecorder_cmd_help,      NXRECORDER_HELP_TEXT(Display help for commands) },
+  {
+    "h",
+    "",
+    nxrecorder_cmd_help,
+    NXRECORDER_HELP_TEXT(Display help for commands)
+  },
+  {
+    "help",
+    "",
+    nxrecorder_cmd_help,
+    NXRECORDER_HELP_TEXT(Display help for commands)
+  },
 #endif
-  { "recordraw", "filename", nxrecorder_cmd_recordraw, NXRECORDER_HELP_TEXT(Record a pcm raw file) },
+  {
+    "recordraw",
+    "filename",
+    nxrecorder_cmd_recordraw,
+    NXRECORDER_HELP_TEXT(Record a pcm raw file)
+  },
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-  { "pause",     "",         nxrecorder_cmd_pause,     NXRECORDER_HELP_TEXT(Pause record) },
-  { "resume",    "",         nxrecorder_cmd_resume,    NXRECORDER_HELP_TEXT(Resume record) },
+  {
+    "pause",
+    "",
+    nxrecorder_cmd_pause,
+    NXRECORDER_HELP_TEXT(Pause record)
+  },
+  {
+    "resume",
+    "",
+    nxrecorder_cmd_resume,
+    NXRECORDER_HELP_TEXT(Resume record)
+  },
 #endif
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-  { "stop",      "",         nxrecorder_cmd_stop,      NXRECORDER_HELP_TEXT(Stop record) },
+  {
+    "stop",
+    "",
+    nxrecorder_cmd_stop,
+    NXRECORDER_HELP_TEXT(Stop record)
+  },
 #endif
-  { "q",         "",         nxrecorder_cmd_quit,      NXRECORDER_HELP_TEXT(Exit NxRecorder) },
-  { "quit",      "",         nxrecorder_cmd_quit,      NXRECORDER_HELP_TEXT(Exit NxRecorder) },
+  {
+    "q",
+    "",
+    nxrecorder_cmd_quit,
+    NXRECORDER_HELP_TEXT(Exit NxRecorder)
+  },
+  {
+    "quit",
+    "",
+    nxrecorder_cmd_quit,
+    NXRECORDER_HELP_TEXT(Exit NxRecorder)
+  },
 };
 
-static const int g_nxrecorder_cmd_count = sizeof(g_nxrecorder_cmds) / sizeof(struct mp_cmd_s);
+static const int g_nxrecorder_cmd_count = sizeof(g_nxrecorder_cmds) /
+                                          sizeof(struct mp_cmd_s);
 
 /****************************************************************************
  * Private Functions
@@ -135,12 +181,12 @@ static const int g_nxrecorder_cmd_count = sizeof(g_nxrecorder_cmds) / sizeof(str
 /****************************************************************************
  * Name: nxrecorder_cmd_recordraw
  *
- *   nxrecorder_cmd_recordraw() records the raw data file using the nxrecorder
- *   context.
+ *   nxrecorder_cmd_recordraw() records the raw data file using the
+ *   nxrecorder context.
  *
  ****************************************************************************/
 
-static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *precorder,
                                     FAR char *parg)
 {
   int ret;
@@ -153,7 +199,11 @@ static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
 
   /* Try to record the file specified */
 
-  ret = nxrecorder_recordraw(pRecorder, filename, channels, bpsamp, samprate);
+  ret = nxrecorder_recordraw(precorder,
+                             filename,
+                             channels,
+                             bpsamp,
+                             samprate);
 
   /* nxrecorder_recordfile returned values:
    *
@@ -202,12 +252,12 @@ static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *precorder,
                                FAR char *parg)
 {
   /* Stop the record */
 
-  nxrecorder_stop(pRecorder);
+  nxrecorder_stop(precorder);
 
   return OK;
 }
@@ -222,12 +272,12 @@ static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *pRecorder,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *precorder,
                                 FAR char *parg)
 {
   /* Pause the record */
 
-  nxrecorder_pause(pRecorder);
+  nxrecorder_pause(precorder);
 
   return OK;
 }
@@ -242,12 +292,12 @@ static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *pRecorder,
  ****************************************************************************/
 
 #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
-static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *precorder,
                                  FAR char *parg)
 {
   /* Resume the record */
 
-  nxrecorder_resume(pRecorder);
+  nxrecorder_resume(precorder);
 
   return OK;
 }
@@ -260,7 +310,7 @@ static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *pRecorder,
  *
  ****************************************************************************/
 
-static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_device(FAR struct nxrecorder_s *precorder,
                                  FAR char *parg)
 {
   int     ret;
@@ -268,7 +318,7 @@ static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
 
   /* First try to open the file directly */
 
-  ret = nxrecorder_setdevice(pRecorder, parg);
+  ret = nxrecorder_setdevice(precorder, parg);
   if (ret == -ENOENT)
     {
       /* Append the /dev/audio path and try again */
@@ -282,7 +332,7 @@ static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
 #else
       snprintf(path, sizeof(path), "/dev/audio/%s", parg);
 #endif
-      ret = nxrecorder_setdevice(pRecorder, path);
+      ret = nxrecorder_setdevice(precorder, path);
     }
 
   /* Test if the device file exists */
@@ -319,13 +369,13 @@ static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
  *   nxrecorder_cmd_quit() terminates the application
  ****************************************************************************/
 
-static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *precorder,
                                FAR char *parg)
 {
   /* Stop the record if any */
 
 #ifndef CONFIG_AUDIO_EXCLUDE_STOP
-  nxrecorder_stop(pRecorder);
+  nxrecorder_stop(precorder);
 #endif
 
   return OK;
@@ -339,7 +389,7 @@ static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *pRecorder,
  ****************************************************************************/
 
 #ifdef CONFIG_NXRECORDER_INCLUDE_HELP
-static int nxrecorder_cmd_help(FAR struct nxrecorder_s *pRecorder,
+static int nxrecorder_cmd_help(FAR struct nxrecorder_s *precorder,
                                FAR char *parg)
 {
   int   len;
@@ -418,7 +468,7 @@ int main(int argc, FAR char *argv[])
   int                     running;
   char                    *cmd;
   char                    *arg;
-  FAR struct nxrecorder_s *pRecorder;
+  FAR struct nxrecorder_s *precorder;
 
   printf("NxRecorder version " NXRECORDER_VER "\n");
   printf("h for commands, q to exit\n");
@@ -426,8 +476,8 @@ int main(int argc, FAR char *argv[])
 
   /* Initialize our NxRecorder context */
 
-  pRecorder = nxrecorder_create();
-  if (pRecorder == NULL)
+  precorder = nxrecorder_create();
+  if (precorder == NULL)
     {
       printf("Error:  Out of RAM\n");
       return -ENOMEM;
@@ -481,14 +531,14 @@ int main(int argc, FAR char *argv[])
                     {
                       /* Command found.  Call it's handler if not NULL */
 
-                      if (g_nxrecorder_cmds[x].pFunc != NULL)
+                      if (g_nxrecorder_cmds[x].pfunc != NULL)
                         {
-                          g_nxrecorder_cmds[x].pFunc(pRecorder, arg);
+                          g_nxrecorder_cmds[x].pfunc(precorder, arg);
                         }
 
                       /* Test if it is a quit command */
 
-                      if (g_nxrecorder_cmds[x].pFunc == nxrecorder_cmd_quit)
+                      if (g_nxrecorder_cmds[x].pfunc == nxrecorder_cmd_quit)
                         {
                           running = FALSE;
                         }
@@ -512,7 +562,7 @@ int main(int argc, FAR char *argv[])
 
   /* Release the NxRecorder context */
 
-  nxrecorder_release(pRecorder);
+  nxrecorder_release(precorder);
 
   return OK;
 }


[incubator-nuttx-apps] 03/04: examples: nxwidget: nxstyle fixes

Posted by gn...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

gnutt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git

commit 1697c64994ccdc0bbef7ae077027a10643bb14e2
Author: Alin Jerpelea <al...@sony.com>
AuthorDate: Tue Apr 21 17:32:44 2020 +0200

    examples: nxwidget: nxstyle fixes
    
    nxstyle fixes for nxwidget exaples
    
    Signed-off-by: Alin Jerpelea <al...@sony.com>
---
 graphics/nxwidgets/src/cwidgetcontrol.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/graphics/nxwidgets/src/cwidgetcontrol.cxx b/graphics/nxwidgets/src/cwidgetcontrol.cxx
index a6b35fe..c4057c4 100644
--- a/graphics/nxwidgets/src/cwidgetcontrol.cxx
+++ b/graphics/nxwidgets/src/cwidgetcontrol.cxx
@@ -590,7 +590,7 @@ void CWidgetControl::newMouseEvent(FAR const struct nxgl_point_s *pos, uint8_t b
 #ifdef CONFIG_NX_KBD
 void CWidgetControl::newKeyboardEvent(uint8_t nCh, FAR const uint8_t *pStr)
 {
-  FAR uint8_t *pBuffer = &m_kbdbuf[m_nCh];
+  FAR uint8_t *buffer = &m_kbdbuf[m_nCh];
 
   // Append each new character to keyboard character buffer
 
@@ -598,7 +598,7 @@ void CWidgetControl::newKeyboardEvent(uint8_t nCh, FAR const uint8_t *pStr)
        i < nCh && m_nCh < CONFIG_NXWIDGETS_KBDBUFFER_SIZE;
        i++, m_nCh++)
     {
-      *pBuffer++ = *pStr++;
+      *buffer++ = *pStr++;
     }
 
   // Notify any external logic that a keyboard event has occurred


[incubator-nuttx-apps] 01/04: examples: i2schar: nxstyle fixes

Posted by gn...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

gnutt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx-apps.git

commit 3cdb81077b24dc56de1880db0ed3382c0bef5e29
Author: Alin Jerpelea <al...@sony.com>
AuthorDate: Tue Apr 21 17:32:44 2020 +0200

    examples: i2schar: nxstyle fixes
    
    nxstyle fixes for i2schar exaples
    
    Signed-off-by: Alin Jerpelea <al...@sony.com>
---
 examples/i2schar/i2schar.h             |  2 ++
 examples/i2schar/i2schar_main.c        | 48 +++++++++++++++++++---------------
 examples/i2schar/i2schar_receiver.c    |  9 ++++---
 examples/i2schar/i2schar_transmitter.c |  9 ++++---
 4 files changed, 39 insertions(+), 29 deletions(-)

diff --git a/examples/i2schar/i2schar.h b/examples/i2schar/i2schar.h
index 8f0e6d3..bf84971 100644
--- a/examples/i2schar/i2schar.h
+++ b/examples/i2schar/i2schar.h
@@ -46,7 +46,9 @@
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
+
 /* Configuration ************************************************************/
+
 /* CONFIG_EXAMPLES_I2SCHAR_DEVPATH - The default path to the I2S character
  *   device. Default: /dev/i2schar0
  */
diff --git a/examples/i2schar/i2schar_main.c b/examples/i2schar/i2schar_main.c
index d95604e..76963f9 100644
--- a/examples/i2schar/i2schar_main.c
+++ b/examples/i2schar/i2schar_main.c
@@ -102,12 +102,14 @@ static void i2schar_devpath(FAR struct i2schar_state_s *i2schar,
 static void i2schar_help(FAR struct i2schar_state_s *i2schar)
 {
   printf("Usage: i2schar [OPTIONS]\n");
-  printf("\nArguments are \"sticky\".  For example, once the I2C character device is\n");
+  printf("\nArguments are \"sticky\".\n");
+  printf("For example, once the I2C character device is\n");
   printf("specified, that device will be re-used until it is changed.\n");
   printf("\n\"sticky\" OPTIONS include:\n");
   printf("  [-p devpath] selects the I2C character device path.  "
          "Default: %s Current: %s\n",
-         CONFIG_EXAMPLES_I2SCHAR_DEVPATH, g_i2schar.devpath ? g_i2schar.devpath : "NONE");
+         CONFIG_EXAMPLES_I2SCHAR_DEVPATH,
+         g_i2schar.devpath ? g_i2schar.devpath : "NONE");
 #ifdef CONFIG_EXAMPLES_I2SCHAR_TX
   printf("  [-t count] selects the number of audio buffers to send.  "
          "Default: %d Current: %d\n",
@@ -159,7 +161,9 @@ static int arg_decimal(FAR char **arg, FAR long *value)
  * Name: parse_args
  ****************************************************************************/
 
-static void parse_args(FAR struct i2schar_state_s *i2schar, int argc, FAR char **argv)
+static void parse_args(FAR struct i2schar_state_s *i2schar,
+                       int argc,
+                       FAR char **argv)
 {
   FAR char *ptr;
   FAR char *str;
@@ -291,7 +295,7 @@ int main(int argc, FAR char *argv[])
    * the priority of transmitter.  This is important if a loopback test is
    * being performed; it improves the changes that a receiving audio buffer
    * is in place for each transmission.
-    */
+   */
 
   pthread_attr_getschedparam(&attr, &param);
   param.sched_priority++;
@@ -308,11 +312,12 @@ int main(int argc, FAR char *argv[])
   if (ret != OK)
     {
       sched_unlock();
-      printf("i2schar_main: ERROR: failed to Start receiver thread: %d\n", ret);
+      printf("i2schar_main: ERROR: failed to Start receiver thread: %d\n",
+             ret);
       return EXIT_FAILURE;
     }
 
-   pthread_setname_np(receiver, "receiver");
+  pthread_setname_np(receiver, "receiver");
 #endif
 
 #ifdef CONFIG_EXAMPLES_I2SCHAR_TX
@@ -331,7 +336,8 @@ int main(int argc, FAR char *argv[])
   if (ret != OK)
     {
       sched_unlock();
-      printf("i2schar_main: ERROR: failed to Start transmitter thread: %d\n", ret);
+      printf("i2schar_main: ERROR: failed to Start transmitter thread: %d\n",
+             ret);
 #ifdef CONFIG_EXAMPLES_I2SCHAR_RX
       printf("i2schar_main: Waiting for the receiver thread\n");
       pthread_join(receiver, &result);
@@ -339,26 +345,26 @@ int main(int argc, FAR char *argv[])
       return EXIT_FAILURE;
     }
 
-   pthread_setname_np(transmitter, "transmitter");
+  pthread_setname_np(transmitter, "transmitter");
 #endif
 
-   sched_unlock();
+  sched_unlock();
 #ifdef CONFIG_EXAMPLES_I2SCHAR_TX
-   printf("i2schar_main: Waiting for the transmitter thread\n");
-   ret = pthread_join(transmitter, &result);
-   if (ret != OK)
-     {
-       printf("i2schar_main: ERROR: pthread_join failed: %d\n", ret);
-     }
+  printf("i2schar_main: Waiting for the transmitter thread\n");
+  ret = pthread_join(transmitter, &result);
+  if (ret != OK)
+    {
+      printf("i2schar_main: ERROR: pthread_join failed: %d\n", ret);
+    }
 #endif
 
 #ifdef CONFIG_EXAMPLES_I2SCHAR_RX
-   printf("i2schar_main: Waiting for the receiver thread\n");
-   ret = pthread_join(receiver, &result);
-   if (ret != OK)
-     {
-       printf("i2schar_main: ERROR: pthread_join failed: %d\n", ret);
-     }
+  printf("i2schar_main: Waiting for the receiver thread\n");
+  ret = pthread_join(receiver, &result);
+  if (ret != OK)
+    {
+      printf("i2schar_main: ERROR: pthread_join failed: %d\n", ret);
+    }
 #endif
 
   return EXIT_SUCCESS;
diff --git a/examples/i2schar/i2schar_receiver.c b/examples/i2schar/i2schar_receiver.c
index a808e2a..20cf0b8 100644
--- a/examples/i2schar/i2schar_receiver.c
+++ b/examples/i2schar/i2schar_receiver.c
@@ -116,13 +116,14 @@ pthread_addr_t i2schar_receiver(pthread_addr_t arg)
       /* Allocate an audio buffer of the configured size */
 
       desc.numbytes   = CONFIG_EXAMPLES_I2SCHAR_BUFSIZE;
-      desc.u.ppBuffer = &apb;
+      desc.u.pbuffer = &apb;
 
       ret = apb_alloc(&desc);
       if (ret < 0)
         {
-           printf("i2schar_receiver: ERROR: failed to allocate buffer %d: %d\n",
-                   i+1, ret);
+           printf(
+             "i2schar_receiver: ERROR: failed to allocate buffer %d: %d\n",
+                i + 1, ret);
            close(fd);
            pthread_exit(NULL);
         }
@@ -160,7 +161,7 @@ pthread_addr_t i2schar_receiver(pthread_addr_t arg)
             }
           else
             {
-              printf("i2schar_receiver: Received buffer %d\n", i+1);
+              printf("i2schar_receiver: Received buffer %d\n", i + 1);
             }
         }
       while (nread != bufsize);
diff --git a/examples/i2schar/i2schar_transmitter.c b/examples/i2schar/i2schar_transmitter.c
index 31c17f4..470352d 100644
--- a/examples/i2schar/i2schar_transmitter.c
+++ b/examples/i2schar/i2schar_transmitter.c
@@ -119,13 +119,14 @@ pthread_addr_t i2schar_transmitter(pthread_addr_t arg)
       /* Allocate an audio buffer of the configured size */
 
       desc.numbytes   = CONFIG_EXAMPLES_I2SCHAR_BUFSIZE;
-      desc.u.ppBuffer = &apb;
+      desc.u.pbuffer = &apb;
 
       ret = apb_alloc(&desc);
       if (ret < 0)
         {
-           printf("i2schar_transmitter: ERROR: failed to allocate buffer %d: %d\n",
-                   i+1, ret);
+           printf("
+             i2schar_transmitter: ERROR: failed to allocate buffer %d: %d\n",
+             i + 1, ret);
            close(fd);
            pthread_exit(NULL);
         }
@@ -172,7 +173,7 @@ pthread_addr_t i2schar_transmitter(pthread_addr_t arg)
             }
           else
             {
-              printf("i2schar_transmitter: Send buffer %d\n", i+1);
+              printf("i2schar_transmitter: Send buffer %d\n", i + 1);
             }
         }
       while (nwritten != bufsize);