Adding an USB type B port to Raspi5 for Midi input

[ToFF]

Here is explanation:

What does the USB-B port do?

The USB type-B connector is attached to the RPi USB type-C connector. It exposes the Zynthian’s “Host Computer” MIDI port. Connecting this to a computer’s USB type-B (or type-C) port should present the computer as a MIDI port to Zynthian and Zynthian as a MIDI port to the computer. This is known as “gadget mode” or “On The Go” (OTG). We do not support audio over this link (yet), only MIDI. We may investigate other options in the future. (Audio was not possible when we first implemented this fea…