Csound and MIDI on Linux
2005-03-29 15:35:40 GMT/BST
A note for anyone who encounters this in future so that they don't waste as much time as I did: When you're using Csound 4.23 on Linux and reading MIDI input using -M/dev/snd/midiC0D0 (or whichever device you use), you may see the message "DO NOT USE THIS INTERFACE" printed to standard out several hundred times per second.
Don't worry. It's probably working fine. Just ignore it.