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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-09-23 03:49:27 +0400
committerAnton Vorontsov <avorontsov@ru.mvista.com>2009-09-23 03:49:27 +0400
commitf056878332a91ed984a116bad4e7d49aefff9e6e (patch)
tree572f4757c8e7811d45e0be0c2ae529c78fb63441 /Documentation/sound/alsa/Procfile.txt
parent3961f7c3cf247eee5df7fabadc7a40f2deeb98f3 (diff)
parent7fa07729e439a6184bd824746d06a49cca553f15 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/power/wm97xx_battery.c
Diffstat (limited to 'Documentation/sound/alsa/Procfile.txt')
-rw-r--r--Documentation/sound/alsa/Procfile.txt5
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.