On Monday, October 5, 2009, Fons Adriaensen wrote: > On Mon, Oct 05, 2009 at 07:00:40PM +0200, Pedro Lopez-Cabanillas wrote: > > The MMA requires that you use a registered manufacturer ID, but only for > > commercial products. There is a special ID = 0x7D that is intended for > > educational or development use only, and should never appear in a > > commercial design. > > Where it is silently assumed that 'educational' and 'development' > implies 'not distributed', or at least 'never used together with > any other app using the same ID'. > > If two or more open source programs use 0x7D and they happen to > see the same MIDI stream then one of them will be screwed. The only devices or programs that would be screwed are those bad or poorly designed/written. In addition to the manufacturer ID, there should be enough additional bytes to uncertainly identify a particular model among others using the same manufacturer ID. The device (soft in this case) receiving a message should be able to distinguish between legitimate and spurious messages using the model ID bytes, checksums and/or some other mechanism. Regards, Pedro _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
