[alsa-devel] [PATCH] snd-hda-intel: add controls to toggle DC bias on mic ports

[Nickolas Lloyd]

Takashi Iwai wrote:
> At Wed, 13 May 2009 18:43:04 +0000,
> Nickolas Lloyd wrote:
>   
>> This patch adds a mixer control for the STAC92XX boards to control the
>> DC bias of mic ports, allowing recording from both powered and
>> non-powered sources.  It replaces the "Mic Output Switch" with "Mic Jack
>> Mode" to switch between Mic, Line In, and Line Out.
>>
>> Signed-off by: Nickolas Lloyd <ultrageek.lloyd at gmail.com>
>>
>> Note: diffed against alsa-driver-20090513
>>     
>
> Thanks, applied now.
>
> BTW, I think we should change also "Line as Output Switch" to "Line-In
> Jack Mode" or so to make the code consistent.  Care to create a patch?
>
>
> Takashi
>
>   
I'd be happy to.  Also, as it is now, the control will only be added if
autocfg.line_out_type is set to AUTO_PIN_LINE_OUT, so this control may
not be added for all mic ports.  I was thinking of making the enum show
only two entries, Line in and Mic in for these other mics.  Thoughts?

Thanks,
Nick