For the time being, I recommend that you go with the usual linux
driver for PC keyboard/mouse controller, which the Indy hardware 
emulates.

I may probably go with a SunOS-like mode of this, since it may be the
easier to hack on the X server I am using right now (X11R6.1, and I
plan to move to X11R6.3 once I have the thing demoable).

Later I could sit down and write the emulation mode for a couple of
the STREAMS ioctls.

Cheers,
Miguel