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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-07-30 10:47:55 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-07-30 10:47:55 +0100 |
| commit | 0a52ac8d181e938d640c2da70cad6d1301abe775 (patch) | |
| tree | 046edf3437a49d3f6989d152bd94fcc80906b86d /Documentation/sound/alsa/Procfile.txt | |
| parent | e81b795d44ba04beab7714de65ed2e377823bd37 (diff) | |
| parent | 9b71de49b030ad8fd4d13d38571b5c42dc9ed8dd (diff) | |
| download | lwn-0a52ac8d181e938d640c2da70cad6d1301abe775.tar.gz lwn-0a52ac8d181e938d640c2da70cad6d1301abe775.zip | |
Merge branch 's3c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux
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. |