Re: [alsa-devel] looping S/PDIF data

[Rene Herman]

On 20-06-08 21:45, Pierre Ossman wrote:

> On Thu, 19 Jun 2008 14:48:19 +0200
> Takashi Iwai <tiwai@xxxxxxx> wrote:
>
> > At Thu, 19 Jun 2008 14:39:05 +0200 (CEST),
> > Jaroslav Kysela wrote:
> > > I don't think that this patch is correct. DMA transfers should be disabled 
> > > by:
> > >
> > > outl(what, TRID_REG(trident, T4D_STOP_B));
> > > outl(val, TRID_REG(trident, T4D_AINTEN_B));
> > They are already in the trigger callback as long as I saw the code
> > quickly.  So the problem should be somewhere else.
> >
> > > lines. Adding &= ~SPDIF_EN can disable output from AC97 to S/PDIF as well.
> > That's true.
> >
> > Anyway, if you are up now, I'll let you hunt further as you are the
> > author of the driver :)
>
> Are there any specs on this hardware? I could play around a bit myself,
> but I can't really find any documentation on the registers.

At:

ftp://ftp.alsa-project.org/pub/manuals/trident/

there's a 4D-Wave DX technical reference manual and .doc files which at 
first glance look useful.

Rene.
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