Re: [Openvortex-dev] [Fwd: Re: [Alsa-devel] AC97 codec odd behaviour (STAC9708/11) / Aureal Card IS SUPPORTED!]

[Jeff Muizelaar]

On Thu, 19 Jun 2003, Ryan Underwood wrote:

>
> Hi Manuel
>
> On Wed, Jun 18, 2003 at 10:33:39AM -0400, Manuel Jander wrote:
> > >
> > > I'm facing some odd things with a Aureal MX300 with a
> > > AC97 codec. For some reason the AC97 interface doesnt
> > > set the EAPD (external amp enable) bit correctly, and i have
> > > to set it explicitly after calling the ac97  mixer initializer.
> > >
> > > Maybe, that the AC97 codec write function actually implemented
> > > for the Aureal cards "misses" some writes, but i just want to be sure
> > > if this bit works for other cards with a STAC9708/11 or similar
> > > codec that need this bit by default, or if i really need to set it
> > > myself ??
> >
> > i recommend you to do this in the card driver level.
> >
> > the use of EAPD is dependent upon the devices.  also, some uses EAPD
> > pin for different purposes...
>
> I agree.  Let us set the default EAPD according to the card type in the
> au88x0_mixer.c initialization.  The user will still have control over
> the setting through alsamixer since the codec_write function has been
> recently repaired.

Sounds good to me.

> Unfortunately, there is no response yet to the stac9708 patch I posted
> on alsa-devel.  I really wish I knew the right names to name those
> controls, but they are pretty strange controls and I couldn't find
> anything comparable that already existed.

It looks like the patch is in alsa-cvs
http://www.mail-archive.com/address@hidden/msg02284.html

-Jeff