Re: mmaping an IO port device
From: Aras Vaichas
Date: Wed Dec 12 2007 - 20:05:29 EST
Aras Vaichas wrote:
Hi,
Can I implement mmap with an io port connected device on an x86 based
CPU?
I'll just add one more bit of information which might effect the
situation. The CPU I am using is an Elan SC520 microcontroller.
It seems that this CPU is able remap the General Purpose ports (IO
ports) into the lower 1GB of memory space.
I will investigate.
If anyone knows anything about doing this, please speak up. This is a
legacy CPU in our product range, and I don't have much experience with it.
Aras
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