Restoring kernel module settings

Hi,

I have developed a kernel module to act as driver for a multitouch input 
device,

It happens that the kernel module settings are setted and getted via 
binnary attributes.

I know that kernel modules can't save or read files. I need an 
alternative way of restoring a saved settings state.

Question:

Is there any way of calling a determined program when a device is 
connected to the computer?

My idea is to develop a really small application that sets the saved 
settings from the last time the device control panel interacted with the 
device.

I think someone has already suggested udev to do it. What functionality 
should I search within udev documentation? Is there any other way of 
achieving this?

Thank you in advance,

With my best regards,

Nuno