On Fri, 7 Jun 2002, [iso-8859-1] Ville Syrjälä wrote:
> On Thu, Jun 06, 2002 at 09:20:31PM -0400, Paul Davis wrote:
> > >The problem with GUS synth is that it uses non-interleaved data layout so
> > >it's not relly useful for pcm stuff. alsa-lib doesn't want to do
> > >the required conversion for some reason.
> >
> > i find this very suprising and somewhat hard to believe. the
> > hammerfall also uses a non-interleaved data layout (as all the best
> > cards do :), and yet despite the fact that the driver contains no code
> > to handle an interleaved stream, aplay via plughw:N,0 works just
> > fine i.e. alsa-lib handles the conversion perfectly. what makes you
> > think it doesn't work?
>
> # aplay -D plughw:0,1 stereo.wav
> aplay: set_params:754: Access type not available
>
> There is a snd_pcm_plug_change_access() function in pcm_plug.c so I'm
> thinking it should work, but it doesn't.
Could you try alsa-lib from current CVS? The problem is, that GUS Synth
PCM device doesn't support mmaped access at the time, so mmap emulation in
alsa-lib should be turned on. I've added a GUS.conf file to
/usr/share/alsa/cards with redefinition of pcm.hw (mmap_emulation is set
to on).
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project http://www.alsa-project.org
SuSE Linux http://www.suse.com
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