Al Kossow wrote: Cool, let me know how it goes. Be sure to start with the latest version; I just released v3.2 yesterday. Here are the challenges I see: - You need to scan the PCI bus for the card. I have two sets of routines in the code for that, one that uses an interface provided by Linux, one that calls into the PCI BIOS for use in the MS-DOS version of the tools. You'll probably need a third set for the BSD-based MacOS X. Hopefully it provides such routines. - You need to persuade the OS to let you access the hardware directly. If you can't do that, you'll need to restructure things so that the code that accesses the hardware is properly isolated in a device driver. - If there's too much else running on the machine, a couple of places where I spin waiting for something to happen may miss the event. This probably won't be a problem, especially if you use the default index hole to index hole reading mode, which waits for the index hole in hardware. Once you're done I'd like to look at folding your changes into my version. -- Tim Mann tim(a)tim-mann.org http://www.tim-mann.org/