On Mon, Jan 10, 2000 at 01:52:11PM -0800, Estabridis, Janet P wrote:
> Dave,
> I am doing this from user space right now. I am using fd "/dev/mem" which
> is what Mr. Rubini's book example and he's advice via e-mail was.
>
> What is the difference between "/dev/mem" and "/dev/kmem" ?
>
> I'll try "/dev/kmem" and I'll try and look at the SVGAlib source.
>
> I truely did not think accessing a memory mapped card would be trouble from
> user space and I thought it would be easier until things are working (if you
> can map it). I'll also try it from kernel space if all else fails.
Sorry, /dev/mem was correct. But mmap_kmem() is just defined to be
mmap_mem(), which makes me suspicious. Have you tried plain, old
read/write/fseek() on /dev/mem?
Are you using a 2.2.x or 2.0.x kernel?
dave...
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