On Sat, Jan 06, 2007 at 08:16:15PM +0530, Ashok kumar wrote: > 1. usb-skeleton.c is a module, how can i check this? What do you mean "check this"? > 2. while compiling the module, it generated built-in.o file, what is it? > from where it has come? That's part of the kernel build process, is it causing you a problem? thanks, greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/