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authorIngo Molnar <mingo@elte.hu>2009-06-01 12:01:03 +0400
committerIngo Molnar <mingo@elte.hu>2009-06-01 12:01:39 +0400
commit23db9f430be9325a861c7762c1ffadad9ca528a8 (patch)
tree1ebb681611c96f17aa4f96e28d6923824a8b210f /Documentation/sound/alsa/Procfile.txt
parent27b9613b7be39412775d0ab80f57229aa73bb07d (diff)
parent3218911f839b6c85acbf872ad264ea69aa4d89ad (diff)
downloadlinux-23db9f430be9325a861c7762c1ffadad9ca528a8.tar.xz
Merge branch 'linus' into perfcounters/core
Merge reason: merge almost-rc8 into perfcounters/core, which was -rc6 based - to pick up the latest upstream fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 bba2dbb79d81..cfac20cf9e33 100644
--- a/Documentation/sound/alsa/Procfile.txt
+++ b/Documentation/sound/alsa/Procfile.txt
@@ -104,6 +104,11 @@ card*/pcm*/xrun_debug
When this value is greater than 1, the driver will show the
stack trace additionally. This may help the debugging.
+ Since 2.6.30, this option also enables the hwptr check using
+ jiffies. This detects spontaneous invalid pointer callback
+ values, but can be lead to too much corrections for a (mostly
+ buggy) hardware that doesn't give smooth pointer updates.
+
card*/pcm*/sub*/info
The general information of this PCM sub-stream.