> For mmaping in the kernel, fbmem seems to be definitive - you use
> io_remap_page_range, and pass in the *input* to ioremap, not the
> output.
/dev/mem also uses remap_page_range, so the only difference is that
fb_mmap contains a frightening number of #ifdefs on machine type. Maybe
I should take this as evidence that I'm safe here.
- Adrian Cox, AG Electronics
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