[linux-audio-dev] Jackd and cards with multiple PCM interfaces

Hi all I am currently working on an ALSA driver enhancement for a card which actually contains two seemingly sample-locked ADCs. I'm making the second ADC accessable via a second PCM interface attached to the card. In general things work fine - under OSS emulaion I can open both (one as /dev/dsp, the other as /dev/adsp). However, jackd doesn't seem to know or care about the second pcm interface on the card and I can't find any obvious way to tell jack about it. It seems suitable entries in .asoundrc might help but it's not clear to me that this will work without xruns (see http://www.alsa-project.org/alsa-doc/doc-php/asoundrc.php). Can jackd work with multiple PCMs from the same card, and if so, what's the best way? Regards jonathan