Windows device driver sniffing / debugging

I've recently bought a laptop with a touch pad that does not completely work under Linux. So I thought I might listen what data is sent to the PS2 controller (IO port 60) under Windows, and update th开发者_如何学Ce Linux driver accordingly. Do you know what tools I might use?

Perisoft Bushound - Expensive but very useful.

For your specific purpose I'd use some serial port monitor/sniffer software.

You may write your own tool that does the same, but that's a large amount of work. You should create a so-called file system filter driver (http://msdn.microsoft.com/en-us/windows/hardware/gg462968).