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Date: Wed, 17 Oct 2007 09:19:23 -0700
From: David Hawkins <dwh@ovro.caltech.edu>
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Subject: Re: PPC440EPx GPIO control help
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Hi Dell,

If you do decide to look at kernel drivers, Jeff has sent you
code, and I also have a tutorial with example code you are
welcome to look at:

http://www.ovro.caltech.edu/~dwh/correlator/pdf/LNX-723-Hawkins.pdf
http://www.ovro.caltech.edu/~dwh/correlator/software/driver_design.tar.gz

Feel free to ask questions. I recall writing some test driver
code for the 440EP Yosemite board too. I'm just not sure where
I put it ...  :)

Cheers,
Dave