- No plans for TMC, as we don't have it in the UK so it's not easy to test :(
- The whole RDS stream, error corrected, currently comes out of /dev/rds. This may change (ie, we may do the error correction in the player as we can do more context-sensitive stuff then). You read 16-bits at a time from /dev/rds and these are the error-corrected packets at the moment.
- Yes, /dev/rds works when mp3s are playing (or the player isn't even running, as long as the tuner is tuned into a station)
- The tuner module connects to the sled, ideally you need another sled as the docking connector is not an off-the-shelf part.

Hugo