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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-07-29 20:28:08 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2009-07-29 20:28:08 +0200 |
| commit | b4093d6235b7e4249616651ee328600ced48a18a (patch) | |
| tree | 9f5b8e466e2d26fbe13ee7934f9e939a09815bd5 /Documentation/sound/alsa/Procfile.txt | |
| parent | d9ab77161d811ffb0bccf396f7155cc905c1b9e1 (diff) | |
| parent | 7d3e91b8a1f5179d56a7412d4b499f2d5fc6b25d (diff) | |
| download | linux-b4093d6235b7e4249616651ee328600ced48a18a.tar.gz linux-b4093d6235b7e4249616651ee328600ced48a18a.tar.bz2 linux-b4093d6235b7e4249616651ee328600ced48a18a.zip | |
Merge branch 'master' into for-linus
Diffstat (limited to 'Documentation/sound/alsa/Procfile.txt')
| -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 381908d8ca42..719a819f8cc2 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. |