2012/2/11 cheng chen <basaka.chen@xxxxxxxxx>: > Me too. good question. > Which header may define these addresses? > > > On Sat, Feb 11, 2012 at 10:52 AM, hz hanks <hankshz@xxxxxxxxx> wrote: >> >> Hi, all >> >> I'm confused with different addresses in Linux, such as virtual >> address and hardware address. For example, which kind of address one >> can get when using "&num" in application layer programming? How about >> that in kernel, such as in device driver? Which kind of address one >> can get when using "void _ _user *to" in device driver? And which kind >> of address the kernel is working with when using "mmap"? And which >> kind of address we are talking about when divide the memory into user >> space and kernel space? >> >> It's quite tedious but thank you so much for helping me! Both in the userpace and in the kernel space of a process, all addresses are virtual. Inside the kernel, you _can_ use physical address but few cases need that. -- Alexandru Juncu ROSEdu http://rosedu.org _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
