On 20/06/2011, Daniel Redway <[email protected]> wrote: > Hello > > As I understand ioremap() maps and returns virtual address > for a given physical(bus) address associated with my PCI card. > That is cool and clear. > > > What is the purpose of request_mem_region()?
checking http://lxr.linux.no/linux+v2.6.39/kernel/resource.c#L732, I think that function generally says "alright,I wanna reserve this memory region, so no one may touch it....until I mark it as free again" -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
