get_user() in LKM

hi i am writing a basic LKM.

i want to get an integer variable from userspace to kernelspace with get_user().
what header file do i have to include for get_user()?
because i have asm/uaccess.h included and copy_from/to_user works fine.
but not get_user().

is it actually ok to use get_user() for transfering integers?


thanks

Maybe this site will be of some help.

thanks for the link.