hi all, In driver module i am using copy_to_user.i have a user module,ths user module i pushed to hernel and mafe as a driver module however copy_to_user works but if i use memcpy() will be better ? whether memcpy is efficient ? Send instant messages to your online friends http://uk.messenger.yahoo.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ