Re: [LAU] Many identical cards - how to keep them straight

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?

Thanks, Mark