Restoring kernel input driver state on boot

Hi,

Since is not possible for a kernel driver to save anything to a file I 
need to know how could I achieve that using other technic.

Someone mentioned earlier in this list that I could use udev to load 
settings on a kernel module.

Since my module state depends on a whole structure the best thing I can 
remember to achieve this goal is someting like this:

- In user space (and since i'm always exchanging that data from and to 
the kernel module within my device control panel) I could save to a 
fixed place a file with that state.

- With a custom and small utility I could load (using the binnary 
attributes) that state to the kernel module on it's initialization using 
for that udev.

Since my understanding of udev at this point is almost null, I would 
like to know if this is possible, and in what functionality of udev I 
should put my effort on.

If someone could give me an expert advice about I would really 
appreciate it.

Thanks in advance,

With my best regards,

Nuno Santos