Geert> On 1 Feb 1999, Jes Sorensen wrote:
>> Oh did I get you wrong here, do you mean PCI I/O registers that
>> just happen to be mem mapped on non x86 architectures or do you
>> actually mean PCI shared memory type registers?
Geert> I mean anything I can map with ioremap(). Before I map it, I
Geert> have to make sure it's not yet in use by a(nother) driver. For
Geert> I/O ports, we have request_region() for that purpose.
Oh, in that case there is currently no method afaik. Point here is
that nobody really has any way of guaranteeing who owns what - ie. you
can have the case (and you often will) that a user space application
wants to mmap() registers while the kernel uses them, like we have
with gfx.
Jes
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