Re: Many identical cards - how to keep them straight

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On Sun, Mar 9, 2008 at 3:52 PM, drew Roberts <zotz@xxxxxxxxxxx> wrote:
>
> On Sunday 09 March 2008 18:44:21 Mark Knecht wrote:
>  > Hi,
>  >    I'm aware of and use standard Alsa methods to keep different sound
>  > cards in the same system straight as far as Alsa is concerned. I'm
>  > wondering what the proper process would be to keep 3 HDSP9652's which
>  > are physically in the same system, or multiple USB sound devices
>  > external to the system, straight as far as Alsa is concerned. I'd like
>  > to know that a certain card always will be always be card 0, card 1 or
>  > card 2. I do not want Alsa or Linux to make this decision for me and I
>  > certainly don't want Alsa to change them from boot cycle to boot
>  > cycle.
>  >
>  >    What's the process to determine which identical card is which? Do
>  > you need to determine some sort of card specific hardware ID and then
>  > write udev rules or is there some way to do this within Alsa?
>
>  I needed to solve this problem a while back. The best help I got was telling
>  me it was not possible.

Humm, that's a pretty glaring disappointment, assuming it's true, and
I have no reason to believe it isn't.
>
>  I would be very interested to learn that there is a way. I got a lot of info
>  that would help with non-identical cards though.

Yeah, I've done different cards for years. I just have an opportunity
to do something new and I'd prefer to do it in Linux. Cannot do it
Linux at all if this isn't supported.

Thanks for the quick feedback Drew. I appreciate it.

cheers,
Mark

>  >
>  > Thanks,
>  > Mark
>
>  all the best,
>
>  drew
>
>
>
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