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authorTakashi Iwai <tiwai@suse.de>2009-02-20 16:50:35 +0300
committerTakashi Iwai <tiwai@suse.de>2009-02-20 18:48:40 +0300
commitf1085c4f319f1e43c95718045a235f276cc4b615 (patch)
treeb9dce1a540453a0b3bd50e32b58537b5e897773d /Documentation/sound/alsa/HD-Audio.txt
parent2f334f92cfb44d17b9f24a43f8998cca03f9a3dd (diff)
downloadlinux-f1085c4f319f1e43c95718045a235f276cc4b615.tar.xz
ALSA: hda - Update documentation for pincfg sysfs entries
Added the brief descriptions of new sysfs entries for pint default config values. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/sound/alsa/HD-Audio.txt')
-rw-r--r--Documentation/sound/alsa/HD-Audio.txt14
1 files changed, 13 insertions, 1 deletions
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index 99f7fbbe3e67..9c51e104546f 100644
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -365,10 +365,22 @@ modelname::
to this file.
init_verbs::
The extra verbs to execute at initialization. You can add a verb by
- writing to this file. Pass tree numbers, nid, verb and parameter.
+ writing to this file. Pass three numbers: nid, verb and parameter.
hints::
Shows hint strings for codec parsers for any use. Right now it's
not used.
+init_pin_configs::
+ Shows the initial pin default config values set by BIOS.
+override_pin_configs::
+ Shows the pin default config values to override the BIOS setup.
+ Writing this (with two numbers, NID and value) appends the new
+ value. The given will be used instead of the initial BIOS value at
+ the next reconfiguration time.
+cur_pin_configs::
+ Shows the pin default values set by the codec parser explicitly.
+ This doesn't show all pin values but only the changed values by
+ the parser. That is, if the parser doesn't change the pin default
+ config values by itself, this will contain nothing.
reconfig::
Triggers the codec re-configuration. When any value is written to
this file, the driver re-initialize and parses the codec tree