PINOUT ON THE LPT-PORT

   13                    12     22(gnd)  15
   |                     |      |        |
   |---|>|----.----|<|---|--.   |        |
   |          |             |   |        |
   |--| 1 |.  | 2 |.--.| 3 |'   |        |
   |       |       |  |         |        |
   |       `--|>|--'  `--------|'        |
   -                           v         |
   v        .-| 4 |------------|         |
   -        |                  ^         |
   |        `--------.-| 5 |--||---------'
   |                 |        v  
   |                 `-| 6 |--.
   |                          |
   `--------------------------'   


'>', '<', '^' and 'v' are diodes.

| X | are buttons, wich temporarily short-circiuts when pressed.


1 = skip back
2 = play
3 = skip fwd
4 = stop
5 = volume increase
6 = volume decrease

This can also be calibrated with camp's 'testrc' or the rcu-tools for winamp.