patch-2_6_7-vs1_9_1_12

[linux-2.6.git] / Documentation / sound / alsa / Procfile.txt

diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt
index d686ea3..25c5d64 100644 (file)
--- a/Documentation/sound/alsa/Procfile.txt
+++ b/Documentation/sound/alsa/Procfile.txt
@@ -131,6 +131,12 @@ card*/codec97#*/ac97#?-?
 card*/codec97#0/ac97#?-?+regs
        Shows the AC97 register dump.  Useful for debugging.
 
+       When CONFIG_SND_DEBUG is enabled, you can write to this file for
+       changing an AC97 register directly.  Pass two hex numbers.
+       For example,
+
+       # echo 02 9f1f > /proc/asound/card0/codec97#0/ac97#0-0+regs
+
 
 Sequencer Information
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