[Gumstix-users] GPIO Access from within a driver

[Heilpern, M. <mar...@au...>]

I will soon be needing to control a few GPIOs from within a driver, and
am wondering what the best way to go about this will be. I've seen the
references towards GPIO access from within the /proc/gpio interface, but
this won't cut it for a driver, interrupt context, etc. Is my problem
something solved through better understanding of the implementation
under Linux, or do I need to steer over to the PXA255 manual for this?


Somewhat related - is there a low level NSSP driver for the pxa255 which
I can leverage to access the device, or am I breaking new ground with
that?

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