uncached user space mapping with mmap() ???
Dan Malek
dan at embeddededge.com
Fri Mar 5 10:17:27 EST 2004
Richard Williams wrote:
> I just tried this using pread....
No, no.
Open /dev/mem and use mmap() to map your physical address:
mmap(NULL, <page_size_bytes>, (PROT_READ|PROT_WRITE), MAP_SHARED, mem_fd, phys_addr);
Then, use the pointer returned from mmap() as the base of your
registers.
-- Dan
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