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

[Takashi Iwai]

At Fri, 15 May 2009 15:17:27 +0000,
Nickolas Lloyd wrote:
> 
> 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?

Sounds reasonable.  Go ahead!


Takashi