Hi all,
I seem to find a number of posts that address simulating a PS/2 keyboard or mouse to simulate input to a computer. I have actually went into a wheel mouse and got the signals from the encoders for quadrature input but that wastes the inherent intellegence already in the mouse. At some point, it seems smarter to use the natural data stream from one instead of hacking it for 3 axises and the switch status. If I can handle the data, I can use it to manually take control of a CNC gantry. The X and Y positioning is logical, and the wheel will be used to manually adjust the Z.
The starting point that I have so far is http://www.computer-engineering.org/ps2protocol/. If anyone has any better starting point, I'd love to hear it.

Thanks
Bo