Re: [Fwd: Multiple cards.]

[Takashi Iwai <tiwai@suse.de>]

At Thu, 13 Jun 2002 00:02:51 +0900,
Patrick Shirkey wrote:
> 
> Takashi Iwai wrote:
> > At Wed, 12 Jun 2002 22:56:03 +0900,
> > Patrick Shirkey wrote:
> > 
> >>Takashi Iwai wrote:
> >>
> >>>>----
> >>>># aplay  -f dat -D ttable /1REC/beastie_boys-track_8.wav
> >>>>Playing WAVE '/1REC/beastie_boys-track_8.wav' : Signed 16 bit Little 
> >>>>Endian, Rate 44100 Hz, Stereo
> >>>>aplay: set_params:737: Broken configuration for this PCM: no 
> >>>>configurations available
> >>>
> >>> 
> >>>the error came from snd_pcm_hw_params_any().
> >>>
> >>>i'm wondering why the second card has only one channel.
> >>>is it really correct?
> >>>
> >>>
> >>
> >>It has one pcm device yes. hw1:0
> > 
> >  
> > but this pcm device has stereo channels, doesn't it?
> > 
> > 
> > sorry, i still have not clear idea what you are exactly trying to do.
> > 
> > you have two consumer cards.  assuming sblive and cmipci.
> > and you'd like to combine these two cards as if 4 channel captures
> > (and playbacks).  or do you have any other wish?
> > 
> > if yes, the exactly same as Joern's configuration should work...
> > 
> 
> Sort of.  The cmipci has two stereo devices and the intel8x0 has one.
 
ah, then you want to use all 6 channels?
you can't - the rear channel is shared with the capture, so they cannot work
together.


> If I want the cards ganged then I want to be able to use all the 
> playback channels. Unfortunately the cmipci doesn't have a corresponding 
>   capture device for pcmC0D1p which I think is what's causing the problems.
> 
> I'm not sure that the .asoundrc file can deal with that or not. Is there 
> anything I can do to fake pcmC0D1c or alsa-lib into using pcmC0D0c 
> instead or can I just not use that device as part of a multishare dummy 
> card?

iirc, there is no method on asoundrc to set up playback and capture
separately.  yes, it would be a nice feature...


Takashi

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