I know this is a long shot, but has anyone succeeded in doing anything with the ZOOM R16 or R24 digital recorder/mixer/audio interface/control surface? It's reporting the USB device class of 0xff, so of course it's not recognized by snd_uaudio. I have seen some reference to some people getting the control surface functionality working in Linux by defining a quirk to treat two of the endpoints as MIDI in and out. Unless there's something out there that would work better, I think I'm going to take a crack at playing with the ugen ioctls.
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