Couldn't this same technique be used for getting FIDs from the serial port (/dev/ttyS0?) with the timecodes=1 option in config.ini?

I think it's notify=1 instead of timecodes=1. Yeah I'm very interested in any easy and non-invasive way of getting the FID of the current song. Timecode also, but I already have a method to get that. When I asked about it, Mike @ Empeg didn't seem enthused enough about the idea to provide a /proc entry or anything like that. He suggested the notify=1 idea.

So I guess what you're saying is we would create a fake serial device which the player would be able read and then pass on to the real serial device... Interesting...