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SubjectRe: Prefered method to map PCI memory into userspace.

>
> Albert Cahalan wrote a patch, for 2.6, that makes mmappable all PCI device
> memory regions. They show up as files in the appropriate subdirectories
> under /proc/bus/pci. See http://lkml.org/lkml/2003/7/13/258 for the
> patch and details.

mmap of /proc/bus/pci is a standard thing in 2.4 already and so in 2.6
as well, though not all archs may implement it..

Regarding bus mastering, there's no way to do that without a kernel
driver.

Ben.


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