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authorDavid S. Miller <davem@davemloft.net>2009-08-13 04:44:53 +0400
committerDavid S. Miller <davem@davemloft.net>2009-08-13 04:44:53 +0400
commitaa11d958d1a6572eda08214d7c6a735804fe48a5 (patch)
treed025b05270ad1e010660d17eeadc6ac3c1abbd7d /Documentation/sound/alsa/Procfile.txt
parent07f6642ee9418e962e54cbc07471cfe2e559c568 (diff)
parent9799218ae36910af50f002a5db1802d576fffb43 (diff)
downloadlinux-aa11d958d1a6572eda08214d7c6a735804fe48a5.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: arch/microblaze/include/asm/socket.h
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.