FW: New experimental audio driver for the ALSA 1.0 API

[Ivan R. Judson]

This could fix a whole slew of problems if it's working.

--Ivan 

> -----Original Message-----
> From: owner-rat-users at cs.ucl.ac.uk 
> [mailto:owner-rat-users at cs.ucl.ac.uk] On Behalf Of Stefan Wenk
> Sent: Wednesday, January 07, 2004 1:12 PM
> To: Piers O'Hanlon
> Cc: rat-users; rat-trap; P.OHanlon
> Subject: Re: New experimental audio driver for the ALSA 1.0 API
> 
> Subject: Re: New experimental audio driver for the ALSA 1.0 API
> 
> 
> > Dear Stefan,
> >
> > This looks great - we have been wanting to upgrade the ALSA 
> support in 
> > RAT
> for
> > sometime now. I haven't had a chance to test it yet but 
> will get back 
> > to
> you
> > when I have.
> Good to hear, please report your test results.
> >Do you know why the volume sliders do not work with your code?
> I looked at the API and also on the sources of qamix and gave 
> up finally after having read 
> http://www.mail-archive.com/alsa-devel@lists.sourceforge.net/m
> sg10142.html.
> 
> > The original ALSA driver was produced by someone else and my 
> > understanding
> was
> > that it supported ALSA v0.5x(?) - did you manage to update 
> the driver 
> > to
> 0.9x?
> Sorry for the confursion. Yes. The current auddev_alsa.c used 
> in rat 4.2.24 is for ALSA API 0.5. I have mentioned this in a 
> comment in auddev_alsa_old.c. The new driver is for the API 
> version 0.9x or 1.0??. I though it was support for ALSA lib 
> version 1.0 because this is the version you see in the 
> generated doc directory of ALSA lib 1.0.0rc2. ALSA 
> documentation is not as good and clear as it could be, see 
> reference above, or I have messed something up, I don't know.
> 
> > Let me know if you have any updates or fixes.
> I don't plan any new release. If you implement the mixer or 
> find and fix bugs during your tests please go ahead. I'll 
> perform testing on my hardware once you send your change 
> directly to me (I'm not subscribed to rat-users or rat-trap 
> because of all the spam).
> From what I have seen so far usage of an external mixer is 
> needed in any case to get rat running properly under Linux, 
> so the volum thing is not a very big limitation for an 
> experimental driver. I hoped somebody more familiar with ALSA 
> would do it.
> but
> probably only after a simplified mixer interface is available 
> in stable form see
> (http://www.mail-archive.com/alsa-devel@lists.sourceforge.net/
> msg09429.html)
> .
> 
> Stefan
> 
>