No it doesn't output all remotes codes, probably only the ones that transmit at the same frequency.
I've been looking at the kernel-source, but the hardware stuff goes over my head...
It does work for this for my 100-in-one remote, which can be programmed for various brands of TV's, Videos and CD-players.
I didn't have the documentation of the remote, so I hacked up intercept.c to output the incoming ir-code. I then started pushing the buttons of the remote to see if anything would be recognized. I had succes with some CD-player configuration, probably kenwood... I've been using it for about a week now, without problems.

Frank van Gestel