snespp is a kernel module for Super NES/Famicon controllers interfaced via a
parallel port. It appears as a keyboard: buttons on the controllers send key
strokes to the operating system. snespp works under both the system console
and X windows, using the microseq interface to reduce overhead.

WWW: http://www.cse.unsw.edu.au/~tbourke/software/snespp.html
