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>
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index 99f7fbb..9c51e10 100644
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -365,10 +365,22 @@
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