pc/104 slot and no jtag. The superIO is controled by a via vt1211. I think I have that part of my config correct. (see below) But I am not sure how to figure out the pnp address.
Normally the superIO will have the address set in hardware by a pin strapping. Get the datasheet on the superIO and look at the options. Then verify by some simple IO testing to the data register. You should be able to write a value to the data register and then read it back.
-- Richard A. Smith