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Re: Modem makes no sound on pismo

On Wed, 2003-07-09 at 19:00, Jason E. Stewart wrote:
> Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> > On Wed, 2003-07-09 at 17:54, Soeren Sonnenburg wrote:
> > > On Wed, 2003-07-09 at 16:45, Jason E. Stewart wrote:
> >
> > > > The internal modem on my pismo has always worked fine, and under MacOS
> > > > I could hear dial tones and dialing noises, etc. But under linux, I've
> > > > never been able to hear anything no matter what settings I use for the
> > > > AT 'L' and 'M' commands.
> > 
> > Ì don't support sound pass-through on the internal modems. Maybe
> > one day...
> Ah - so it's a kernel issue. I thought the modem has it's own
> speaker. Just out of curiousity - with a possibility of helping,
> just maybe, what is the issue to why it isn't supported - what needs to be
> added to the kernel?

It depends on each machine model it seems. The modem sound can be analog
& wired on a mixer input of the sound chip, or it can be all digital
on an i2s channel (I _think_, I'm not too sure about this one). For
the USB softmodem, I think you can ask them modem to give you sound
on the data line when dialing and the driver could try to route
that to the sound driver, but it's a lot of work


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