Re: Alsa, Kernel OSS

[Marc Giger]

Hi Takashi,

On Mon, 03 Mar 2003 16:28:11 +0100
Takashi Iwai <[e-mail]> wrote:

> At Sat, 1 Mar 2003 23:17:46 +0100,
> Marc Giger wrote:
> > 
> > Hi Jaroslav, Hi everyone,
> > 
> > I have the following problem with Kernel 2.4.20 and the alsa
> > 0.9.0_rc6 / rc7 drivers: 
> > 
> > When I try to load the snd-intel8x0 driver I get the message that no
> > such device is installed. But when I first load the kernel i810_audio
> > driver and then unload it again, I can load the snd-intel8x0 without
> > any problems.... 
> 
> this might be due to the detection of modem codec.
> if so, this was fixed on the ALSA cvs.  please try ALSA cvs version or
> wait for the next ALSA patchset...

Ok, I will wait..

> 
> 
> > This happened not with 2.4.19 and alsa < 0.9.0_rc6..
> > 
> > Another question:
> > 
> > Why can't I play more than one sources on the same time with such a
> > card? All programs which would access /dev/dsp blocks until the other
> > programs frees the device... It isn't very useful. 
> > 
> > I have no such problems with multiple sources as example on my
> > SBLive or on my yamaha sound card with the snd-ymfpci driver. 
> > 
> > Do I miss some settings?
> 
> no, it's the hardware limitation.

Ok, I see..cheap hardware..

But multiple sources on window$ works..
In this case, windows mixes the sources in software - right?
Is it a big "problem" to do this also in Linux?
This would be an interesting work for me:-)
Perhaps a program as interface between userspace and alsa-driver? Or better directly in the alsa-driver?

Thank you very much!

Marc

> 
> 
> Takashi
>