Réf. : RE: mmap : please help !

[Jean-Christophe Dubois]

Hello Sophie,

On Thu, 2005-04-14 at 11:38 +0200, scarayol at assystembrime.com wrote:
> Stéphane,
> 
> thanks for your help.
> But I think that, except instruction eieio,  I do similar things. You use
> the virtual address returned by mmap but have you the same values if you
> use write/read(axs_mem_fd,...) instead of in_8/out_8.
> That is  my problem : I want to be sure that when I use the virtual address
> returned by mmap, I access really to the physical memory mapped area.

As the /dev/map_mc is your custom driver it should be fairly easy for
you to check the parameters you pass to remap_page_range(). 

> Do you know a shell command in order to dump the memory and verify what I
> do ?

try "od"

JC

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