I think that if there is an empeg_audio3.c, then the others are probably being ignored. I'd forgotten that I hadn't publicly published this patch yet. I'll send you a copy now, and put it with the other voladj stuff soon (a day or two). I haven't tested it on a Mk1 and I haven't actually used the different ioctl number, but at the very least the player functions, and the volume adjustment is working on my (tunerless) Mk2.

Richard.