[Openvortex-dev] Re: [Alsa-devel] Re: au88x0 modem

[Sasha Khapyorsky]

On 10:46 Fri 16 Sep     , Philipp Matthias Hahn wrote:
> 
> > 2. GPIO
> >
> > Probably we are lucky and au88x0 implements it in AC97 way, try to write
> > mc97 registers via /proc (for this you need build drivers in debug mode,
> > '--with-debug=detect' is ok):
> >  # echo 42 ffff > /proc/asound/card0/codec97#0/mc97#1-1+regs
> >  # echo 42 0 > /proc/asound/card0/codec97#0/mc97#1-1+regs
> >  # echo 54 1 > /proc/asound/card0/codec97#0/mc97#1-1+regs
> 
> Sorry, I did echo those values and read mc97#1-1+regs, but no values
> changed.

Even 0x42 register? Are you with debug version of drivers
( ./configure --with-debug=detect )?

> > , if value is changed (we are lucky then), you may connect line and
> > isten 'Hook-Off' clicks (when 0x54 is switched between 0 and 1) with
> > parallel phone.
> 
> I don't have the line cable with me at the moment and need to find a
> analog telephone circuit until I can test that

If values are not changed there will nothing, don't try.

BTW, stupid question, if you don't have analog telephone line why you
need modem?

Sasha.