Re: Naming multiple alsa sound cards (was Re: synthetic sound generator with api)

["Chuckk Hubbard" <badmuthahubbard@gmail.com>]

On 8/5/06, Hugo Vanwoerkom <hvw59601@care2.com> wrote:
> CJ van den Berg wrote:
> > On Thu, Aug 03, 2006 at 05:20:38PM -0500, Hugo Vanwoerkom wrote:
> >> For the alsa behaved apps (like libao) you set alsa_card=1 or 0 and
> >> ao_example.c plays on either one soundcard or the other.
> >
> > Just a small tip. On machines with multiple sound devices the alsa card
> > numbers may not be predictable because the device number depends on which
> > card was detected first. On my machine it seems to be pretty random. Alsa
> > allows you to refer to sound devices by *name* though too, which works much
> > more predictably. So for example in libao you would use the driver option
> > "dev=hw:NAME" instead of "dev=hw:NUMBER". The names of the devices on your
> > machine are listed (in square brackets) in /proc/asound/cards.
> >
>
> I have this in /etc/modprobe.d/sound:
>
> alias snd-card-0 snd-via82xx
> options snd-via82xx index=0
> alias snd-card-1 snd_ca0106
> options snd_ca0106 index=1
>
>
> and now the cards always seem to come up in that order.
> But thanks for the tip!

Is there any sort of standard for this?  I don't have
/etc/modprobe.d/sound, and I can't find anywhere what files I need to
edit to get this done.  I have one emu10k, and two USB MIDI
controllers, and the controllers always come up as hw:0 and hw:1, but
sometimes they aren't plugged in, so no matter what hw: I set jack to
look for, it changes depending on the MIDI devices.
I'm running debian etch, 2.6.16-2.  None of the documentation I can
find on this modprobe/modules/.conf stuff seems to refer to my system.

I don't want to waste anyone's time, but are there files or folders of
which I could post the contents so that anyone could tell me how to go
about making these edits?  I know there may be workarounds, but I
think it would be simpler to just find out how my system has this
stuff set up, so I can know.

Thanks.

-Chuckk


--
"Far and away the best prize that life has to offer is the chance to
work hard at work worth doing."
-Theodore Roosevelt