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author | Ingo Molnar <mingo@elte.hu> | 2009-08-02 08:11:26 -0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-08-02 08:23:57 -0400 |
commit | 8e9ed8b02490fea577b1eb1704c05bf43c891ed7 (patch) | |
tree | 3c0cc5dd498abcf0cc894e85509c131a0dde9a43 /Documentation/sound/alsa/Procfile.txt | |
parent | 716a42348cdaf04534b15fbdc9c83e25baebfed5 (diff) | |
parent | 07903af152b0597d94e9b0030746b63c4664e787 (diff) |
Merge branch 'sched/urgent' into sched/core
Merge reason: avoid upcoming patch conflict.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 | ||