I guess I would look at the source to copy_to_user() and copy_from_user() to see how they worked, and figure out how to write my own copy_from_user_to_user(). Bill. Jeroen Vreeken wrote: > In order to make my videoloopback more efficient I am trying to copy the > buffer from a write call directly to a buffer from a read call. > using copy_to_user does nothing and copy_from_user crashes my machine. > using verify_area also doesn't help. > > I am searching for something like copy_between_users.....
