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author | Rafael J. Wysocki <rjw@sisk.pl> | 2009-07-29 14:28:08 -0400 |
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committer | Rafael J. Wysocki <rjw@sisk.pl> | 2009-07-29 14:28:08 -0400 |
commit | b4093d6235b7e4249616651ee328600ced48a18a (patch) | |
tree | 9f5b8e466e2d26fbe13ee7934f9e939a09815bd5 /Documentation/sound/alsa/Procfile.txt | |
parent | d9ab77161d811ffb0bccf396f7155cc905c1b9e1 (diff) | |
parent | 7d3e91b8a1f5179d56a7412d4b499f2d5fc6b25d (diff) |
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 | |||
101 | bit 0 = Enable XRUN/jiffies debug messages | 101 | bit 0 = Enable XRUN/jiffies debug messages |
102 | bit 1 = Show stack trace at XRUN / jiffies check | 102 | bit 1 = Show stack trace at XRUN / jiffies check |
103 | bit 2 = Enable additional jiffies check | 103 | bit 2 = Enable additional jiffies check |
104 | bit 3 = Log hwptr update at each period interrupt | ||
105 | bit 4 = Log hwptr update at each snd_pcm_update_hw_ptr() | ||
104 | 106 | ||
105 | When the bit 0 is set, the driver will show the messages to | 107 | When the bit 0 is set, the driver will show the messages to |
106 | kernel log when an xrun is detected. The debug message is | 108 | kernel log when an xrun is detected. The debug message is |
@@ -117,6 +119,9 @@ card*/pcm*/xrun_debug | |||
117 | buggy) hardware that doesn't give smooth pointer updates. | 119 | buggy) hardware that doesn't give smooth pointer updates. |
118 | This feature is enabled via the bit 2. | 120 | This feature is enabled via the bit 2. |
119 | 121 | ||
122 | Bits 3 and 4 are for logging the hwptr records. Note that | ||
123 | these will give flood of kernel messages. | ||
124 | |||
120 | card*/pcm*/sub*/info | 125 | card*/pcm*/sub*/info |
121 | The general information of this PCM sub-stream. | 126 | The general information of this PCM sub-stream. |
122 | 127 | ||