On Mon, Sep 05, 2005 at 02:37:52PM +0530, raja wrote: > printk("Hello World 4 \n"); > int ret_val = register_chrdev_region(start,count,NAME); This code will not even compile properly. How do you expect it to work? 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/