> > What is copy_in_user?
> >
> > Both source and destination pointers are in userspace.
>
> sys_memcpy() ?
No, its for in-kernel usage. If you want to copy 10 bytes in
userspace, you can't use memcpy()... You'd have to do copy_from_user()
then copy_to_user(); and that's what copy_in_user does.
Pavel
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