I'm sorry. I planned to provide and used to provide on tc 2.x a jack-ffado extension, but although people tell me it should work I never actually got the new firewire stack working. I tried it at least three times, but it was never stable enough for me to use. If there is interest I could provide jack-ffado together with a firewire-legeacy extension, but it's probably more straightforward to use an ubuntustudio rt legacy-firewire kernel (I haven't watched what they currently offer, but iirc that's what some friends of me use).