uncached user space mapping with mmap() ???
stephane.fillod at thomson.net
Fri Mar 5 01:47:29 EST 2004
Steven Scholz wrote:
>> Please refer to "11.13. Accessing peripherals from user space"
>> in the excellent FAQ from DENX's TWiki at :
>> There's no need to implement kernel side stuff. /dev/mem is enough.
>Oh! Nice. Thanks a million! It actually works (on my ARM board!)
Glad to hear it!
>So why will people need their own mmap() driver if this kind of things
>can be done via /dev/mem ???
For fun :)
Or weird(read clever) mappings.
>And: Can I mmap() 32MB of peripheral memory into user space?
I don't see any reason why you would not be able to.
The best answer is try it, and see for yourself.
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