01-01-2020, 04:19 PM
We and some other NDLR customers have previously reported the issue with MIO not recognizing The NDLR class compliant USB MIDI. We even sent them USB dumps, but apparently they have not fixed whatever the problem is. There are a couple of things that might hang up their USB MIDI host code; The NDLR is a compound USB device with 4 MIDI Ins and Out, plus a serial port. So they could be hanging up on the serial port, which they should ignore, or they don't like having 4 USB virtual MIDI I/Os. USB is very complex, so it could be some other thing in the USB negotiation that they would have to debug.