[alsa-devel] [PATCH 0/10] Realtek auto-parser updates

[Takashi Iwai]

At Sun, 1 May 2011 08:35:17 +0800,
Raymond Yau wrote:
> 
> 2011/4/30 Takashi Iwai <tiwai at suse.de>
> 
> > At Sat, 30 Apr 2011 10:44:13 +0800,
> > Raymond Yau wrote:
> > >
> > > [1  <text/plain; ISO-8859-1 (7bit)>]
> > > 2011/4/30 Takashi Iwai <tiwai at suse.de>
> > >
> > > > Hi, this is a series of patches I'm going to apply as 2.6.40 material.
> > > > Basically this adds the missing features to BIOS auto-parser mode, the
> > > > support of multi-channel setup (2/4/6-channels) and the auto-mute of
> > > > line-out jacks as well as speakers.
> > > >
> > > > Many changes have been done but mostly in systematic manner.
> > > > I've checked through hda-emu and a few machines with Realtek codecs,
> > > > but of course can't cover all changes I made.
> > > >
> > > > If you see any issues with the updated tree, please let me know.
> > > >
> > > >
> > > How about those 4 jacks 8 channels notebook (e.g. ms-1656)  ?
> >
> > Currently, the detection of LO/MIC extension depends on the location
> > of the jacks.  It assumes that these jacks are located at the same
> > place as the corresponding line-out jack(s).
> >
> > I wrote in that way to avoid mis-detection.  It'd be easy to change it
> > to look through other locations.
> >
> >
> Refer to 2-17 of the user manual
> 
> Left Side View
> 
> Those four jacks are at the left side
> 
> Headphone out/SPDIF out : Used for speakers or headphones. The SPDIF
> connector is also provided for digital audio transmission to external
> speakers through an optical fiber cable.
> 
> How can the auto parser know it is a combo jack ?

Usually in the case of HP/SPDIF combo jack, the jack detection works
only for the headphone jack.  And SPDIF works anyway independently
which jack is plugged.  Both are obvious when you look at how the
combo jack works.


Takashi