[LAU] consolidating a firewire sound card with my other existing pci (alsa) soundcards

Hi all, I have recently acquired a Focusrite SaffireLE (analog: 4ins & 6 outs, firewire) and I am trying to figure out how can I consolidate its analog ins/outs with the rest of my setup: The same audio server hosts other soundcards that are happily driven by alsa. so JACK can see all the rest of the sound cards (through zita-a2j, etc). Now comes the firewire card. If I start a separate jackd session with the firewire backend jackd -R -n firejack -dfirewire then I get to see 6 ins and 8 outs (digital in/out included). I have 2 problems with this setup: - how do I connect the 2 jack sessions (with 0ms latency if possible). I tried with zita-n2j but with anything less than 100ms buffer the sound is unbearably choppy. - I tried to route some audio stream to each one of the outputs but from some outputs I could not get any sound, then routing to out1,2 would play from physical outs 3,4 - so not ideal. I tried to use the ffado-mixer to fiddle around with routing , but did not manage anything. Then I thought, to use the alsa driver , since alsa "sees" the card normally. $ cat /proc/asound/cards 6 [SaffireLE ]: BeBoB - SaffireLE Focusrite SaffireLE (id:2, rev:1), GUID 00130e010004184f at fw1.0, S400 but aplay only registeres a single PCM device: $ aplay -l card 6: SaffireLE [SaffireLE], device 0: BeBoB [SaffireLE PCM] Subdevices: 1/1 Subdevice #0: subdevice #0 so this is not ideal. IS there a way to get the alsa driver to identify all the ins and outs ? Alternatively, is there a better way to use a single jack session and load the 2nd backend as well ? (maybe through audioadapter or otherwise) Finally, is there a chance to coordinate 2 jack sessions (each with one of alsa, firewire backends) with 0 latency between them ? In this setup does anyone have experience with SaffireLE and how to control the mixer? Thank you!