Hi, kishore wrote: > when i tried to insmod proc_fs.o i met a problem as > proc_fs.o : unresolved symbol proc_register > proc_fs.o : unresolved symbol proc_unregister (Are you trying to compile procfs as a module?) You can't use proc_register(), for it's a static function. http://lxr.linux.no/source/fs/proc/generic.c?v=2.4.18#L359 (You will find proc_register() was called directly for only older versions. http://lxr.linux.no/ident?v=2.4.18&i=proc_register ) You need to use something like create_proc_entry(). Regards. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/