What:		/config/usb-gadget/gadget/functions/midi.name
Date:		Nov 2014
KernelVersion:	3.19
Description:
		The attributes:

		================	====================================
		index			index value for the USB MIDI adapter
		id			ID string for the USB MIDI adapter
		buflen			MIDI buffer length
		qlen			USB read request queue length
		in_ports		number of MIDI input ports
		out_ports		number of MIDI output ports
		interface_string	USB AudioControl interface string
		================	====================================
