DIO_Exercise part 2

[Ray Henry <rehenry-at-up.net>]

As promised, I've tested DIO_Exercise.tcl with a PCI DIO-24 board 
from Measurement Computing.  I don't have a complete handle on how to 
configure this card without some help.  It does not work the way that the 
ISA card tested does.  

There is quite a bunch of driver software for cards by this company 
available at the url below.  

ftp://lx10.tx.ncsu.edu/pub/Linux/drivers

This driver was written by Warren J. Jasper wjasper-at-tx.ncsu.edu at North 
Carolina State University.   I downloaded the sources and made the 
drivers.  This tests out well with the TNG or with a 2.4.18 kernel and 
the RTAI patches.

Once that drivers is installed and a configuration sent to the PCI card, 
I can use the exerciser to set and read port values.  I'll keep digging 
on direct configuration of the board.

Ray