Intel 82801I hda, STAC9271D codec: problem(s)

[Andriy Gapon]

on 12/11/2008 21:31 Alexander Motin said the following:
> Andriy Gapon wrote:
>> And one more thing, glimpsed from linux:
>> http://lxr.linux.no/linux+v2.6.27.5/sound/pci/hda/patch_sigmatel.c#L690
>>
>> It seems that they program Volume Knob widget to use direct control of
>> sub-ordinate amplifiers and set the volume to max.
>> I hacked our driver to do the same by adding the following:
>>
>> +#if 1
>> +       if (w->type == HDA_PARAM_AUDIO_WIDGET_CAP_TYPE_VOLUME_WIDGET) {
>> +               hdac_command(sc,
>> +                   HDA_CMD_SET_VOLUME_KNOB(cad, nid, 0xff), cad);
>> +       }
>> +#endif
>>
>> And it seems that I got louder volume with the same mixer settings as
>> before. But maybe this is a psychological effect.
> 
> According to specification effect must be the same as setting this
> volume to all related controls directly. In your case as setting pcm and
> vol to 100.
> 

I see. Thank you!

-- 
Andriy Gapon