hi, i tried a example code for character device driver. the code got compiled but while loading the driver using insmod iam getting unresolved symbol for register_chrdev_Rfxxxxxxx i checked the /proc/ksyms it contains a entry by name register_chrdev_R1xxxxxxx and /usr/src/linux-2.4/kernel/ksyms.c contains EXPORT_SYMBOL(register_chrdev) how can this error be avoided or where is the error it likely . thanks and warm regards Shifani -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/