On Fri, Jan 28, 2005 at 01:40:51PM -0800, Rock Gordon wrote: > Hi everbody, > > Thanks for your replies. > > However I think my copy_to_user and copy_from_user are > failing since the kernel-mode thread is copying data > into another process's address space, and I am not > sure how to do this. Do the get_fs() and set_fs() > combinations let you do that? If not, then how do I do My idea is on kernel thread is limited. But I think it is not possible to any userspace address from any kernel thread because they do not have access to it. Their proc_struct->mm field is empty. I am not sure whether set_fs and get_fs help in this case. HTH, Om -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/