I can't suggest anything other than the ffffffed is -19 wich is ENODEV. I know other functions, like filp_open() that return pointers will also return error codes casted to pointers. I hope that helps. Jonathan On 28 Aug 2002, anand kumar wrote: > Hi, > > I am looking for a way by which the application code can access > the > PCI configuration registers.I know that we can ioremap the device > address to kernel space and the user can mmap it. > Is there any other way to do it other than calling mmap from > application. > For eg: can we make use of an ioctl and in that ioctl issue a call > to > do_mmap2 ----> do_mmap_pgoff? Can we pass the ioremapped address > to > do_mmap2 call? > The problem with the above approach is that i always get ffffffed > as the mapped address which does not look like a valid user space > virtual > address. > Pl suggest me if there is a better approach. > > Rgds > Anand > > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
