Just to let you know that I have managed to get the Edirol UR80 interface to work in zynthian.
The parameters I have used are the following:
Generic USB Interface
-P 70 -t 2000 -s -d alsa -d hw:UR80 -r 96000 -p 512 -n 2 -X raw
-O complex -t 0.5 -s -88 -p yinfft -l 0.5
I also got it with 48000 and 256; 96000 256
If 44100 is used the interface does not load, because it is all the time popping up and shutting down.
I have to do performance tests modifying some parameters and loading several synthes, but, for the moment, it sounds (and very well).
The MIDI is taken by default, although I have not managed, for the moment, to make MIDI learn, but the midi monitor receives the cc messages, although it does not differentiate between banks of faders (but for me it is enough like that).
Very happy because this interface (that I bought 20 years ago) can never take advantage of it, because Edirol never released drivers for modern O.S… Apparently it was because they didn’t pay for signing the drivers (a zero for roland, like so many times).