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ALSA: hda - Update documentation for pincfg sysfs entries

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Added the brief descriptions of new sysfs entries for pint default
config values.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-02-20 14:50:35 +01:00
parent 2f334f92cf
commit f1085c4f31
1 changed files with 13 additions and 1 deletions
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14
Documentation/sound/alsa/HD-Audio.txt
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@ -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