[linux-audio-dev] USB-MIDI Transfer rate

Hi! I am currently working on digesting the USB-MIDI Class Definition ... http://www.usb.org/developers/devclass_docs/midi10.pdf As I understand, you can have up to 16 USB MidiStreams (MS), each equal to a physical midi-cable (and each "cable" having 16 virtual midi-channels.) There is a bandwith limit of one 3-byte midievent/ms which makes sense given the bandwith of of a physical midi-cable The MIDI-USB device also have a control channel without any endpoints (without any physical midi-jacks.) Again only as far as I have understood; the control channel is not a MidiStream and should therefore be able to accept a significantly higher transfer rate than the physical MidiStreams. Question: How do I determine the max transfer rate for the control channel (bInterFaceSubClass == 1) as apposed to the physical midi-outs (bInterFaceSubClass == 3) ?+ This is for setting LEDs partially lid for more than one parameter, by pulsewidth-modulation over USB-MIDI. mvh // Jens M Andreasen