Gpio kernel module

[Andrea Gasparini <gaspa@xxxxxxxxxxx>]

Hi all,
I'm trying to write a kernel module for a GPIO (General purpose I/O) of an 
Advantech DVS 300 [1].

I'm wondering if there's a "standard" way to implement it, to make a right 
and functional interface, and perhaps some examples.

Someone has/knows any code for some GPIO driver? I found only this:
http://www.bononia.it/~renzo/keap/mitygpio_driver.tgz
( obviusly described herre: http://www.bononia.it/~renzo/keap/ )

Bye!
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