UMIDI(4) BSD Kernel Interfaces Manual UMIDI(4)
umidi -- USB MIDI devices
umidi* at uhub?
midi* at umidi?
The umidi driver supports USB MIDI devices that follow the USB MIDI stan-
dard. It also supports the following vendor specific devices:
other Yamaha MIDI devices (hopefully)
The umidi driver is accessible through the midi(4) driver.
midi(4), uhub(4), usb(4)
The umidi driver appeared in OpenBSD 3.2.
Some USB MIDI devices provide a switch for selecting between a vendor
specific mode and standard USB MIDI mode. Selecting standard USB MIDI
mode may allow a device to attach as umidi rather than ugen(4). This is
particularly true for Roland branded devices.
BSD March 24, 2017 BSD