disconnect USB mouse data from the mouse pointer
 

Hello,

i wrote a programm that uses the data provided from a modified USB mouse. Now I'm searching for a way to disconnect this data from the displayed pointing device and use for the pointing only a PS2 mouse or the touchpad.
The data from the USB mouse I get till now from '/dev/input/eventx' by using a modified version of the 'cat' function.

Does anyone here know a solution for my problem, or maybe any webpage where i could get the information needed to do this?

Thanks
Yeronimo