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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-08-27 22:00:20 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2009-08-27 22:00:20 -0700 |
| commit | 4b61bb575b1fb42ab1df228ae7812e5135f656da (patch) | |
| tree | 03456466e6f678456ea462a7da4b352d1aa03aa3 /Documentation/sound | |
| parent | 805423e84e900e56c834aadee61a020b0d5092c3 (diff) | |
| parent | 326ba5010a5429a5a528b268b36a5900d4ab0eba (diff) | |
Merge commit 'v2.6.31-rc8' into next
Diffstat (limited to 'Documentation/sound')
| -rw-r--r-- | Documentation/sound/alsa/Procfile.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt index 381908d8ca4..719a819f8cc 100644 --- a/Documentation/sound/alsa/Procfile.txt +++ b/Documentation/sound/alsa/Procfile.txt @@ -101,6 +101,8 @@ card*/pcm*/xrun_debug bit 0 = Enable XRUN/jiffies debug messages bit 1 = Show stack trace at XRUN / jiffies check bit 2 = Enable additional jiffies check + bit 3 = Log hwptr update at each period interrupt + bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr() When the bit 0 is set, the driver will show the messages to kernel log when an xrun is detected. The debug message is @@ -117,6 +119,9 @@ card*/pcm*/xrun_debug buggy) hardware that doesn't give smooth pointer updates. This feature is enabled via the bit 2. + Bits 3 and 4 are for logging the hwptr records. Note that + these will give flood of kernel messages. + card*/pcm*/sub*/info The general information of this PCM sub-stream. |