From: Andrew Beers (beers@cs.buffalo.edu)
Date: 06/28/93 

From: beers@cs.buffalo.edu (Andrew Beers)
Subject: Reading from memory
Date: 28 Jun 1993 05:44:31 GMT

I am attempting to implement a device driver for a frame-grabber device. It's
buffers are accessed by reading high memory (ie. 0x00a00000). Reading high
memory accesses the card's own memory.

How can I access this memory from the kernel under linux? How do I ensure
that when I access memory address 0x00a00000 that I am accessing that
*physical* address, rather than that virtual address?

Any tips would be appreciated. Email replies are also preferred! Thanks!

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Andrew C. Beers, N2LUH beers@cs.buffalo.edu
SUNY Buffalo, Computer Science {rutgers,uunet}!cs.buffalo.edu!beers
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