Jim C. Brown wrote:

>P.S. I have the Synaptic specifications downloaded. I can start writing the
>qemu support, once I figure out how the PS/2 mouse is emulated.
>
>It would probably be easier to add a command to the emulated mouse to switch
>from reporting relative position to absolute position. This would need a
>custom guest driver to use absolute positioning though. :/
>  
>
The Synaptics touchpad has a special register sequence that switches it 
to absolute-reporting mode.  The bonus of doing it this way is that 
Linux/XFree86-based operating systems get free absolute positioning 
support (the kernel PS/2 layer has touchpad support built in).  Windows 
is the only tricky part of this implementation.

Matt.