> So this means that at offset 0x4000 at IO space should be the PM  
> stuff that I could modify, but when I read space, I get all 0xFF's  
> so that's not working :-(
>
> # dd bs=1 skip=13500 if=/dev/port count=60 | od -t x1 -v

13500 isn't anywhere near 0x4000.  Try writing skip=$((0x4000))
if you have problems with hexadecimal arithmetic -- computers
can do it fine ;-)


Segher


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