Do you see something when you run "cat /dev/snd/midiCxD0", where x is the card number?
Not a thing - midiC1D0 is the only device that exists when I do a "cat /dev/snd/...." and I see nothing when I pound some keys on my MIDI controller.
Are there any messages in /var/log/messages -- probably "cannot submit URB", or something else USB-related?
Also a negative - it looks like everything is working fine from the USB end. It recognizes the Quattro on startup and loads up the snd-usb-audio driver. I would expect this though as my audio and MIDI output through the Quattro works perfectly.
Any other ideas?
-Daniel
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