On Thu, Mar 04, 2004 at 03:35:46PM +0100, Steven Scholz wrote: > >There's no need to implement kernel side stuff. /dev/mem is enough. > > So why will people need their own mmap() driver if this kind of things > can be done via /dev/mem ???
There are CPUs (e.g. PPC440) where you cannot use /dev/mem to map I/O memory. In case of PPC440 it isn't in 4GB address space that /dev/mem can access. Eugene. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
