Extend device driver?

Pol Eyschen poleyschen at gmail.com
Sat Sep 10 10:41:34 EDT 2016

Hi everyone,

I want to implement some custom functions of my mouse (Madcatz RAT5) in 
Linux, e.g custom DPI-values. As this requires writing over USB to the 
firmware of the mouse I was thinking of writing a module to accomplish 
this. However I don't want to reimplement a whole mouse-driver,so I 
wanted to ask if there is a possibility of binding the device to 2 
modules or having my module extend usbhid, so that my module would only 
be used to perform these custom operations while usbhid stays in charge 
of the whole "mouse business".



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