On Thu, Aug 25, 2011 at 1:28 PM, Kristian Amlie kristian@amlie.name wrote:
One caveat I have discovered with the patch: If you keep the instrument plugged in, but reload the driver, then the driver gets out of sync with the MIDI messages and won't report any. This seems to be because, in the stream, the message type is cached and subsequent messages do not report what type of message they are unless they are switching to a new type (going from control message to note message, for example). You can reset the stream by manually generating MIDI messages of different types (turn the volume knob while pressing a few notes), or eventually the instrument will reset itself and send the type anyway. So it's not critical, but would be nice to fix. I'm not sure how to solve it though...
What you're seeing here is a general problem of the MIDI protocol that cannot be fixed. If a receiver misses the running state update, it can't do anything but wait for the next one.
Daniel