Deep C:
	How about we make a struct to represent file permissions?
		Subdividing for flags

Project 2 is posted
	It better be...as I write this, it's not!

What if we actually wanted something from the user, like in project 2?
	We'll need write!
	Basically just a twin of read

copy_to_user and copy_from_user
	They make sure the user's pointer is actually in userspace
	Why wouldn't it be?

cat trap from a while ago

Hijacking a system call as kernel module UI:
	Try to make it kinda make sense
	Nice if it can work with existing UI tools, but a utility is fine too
	Pick one with parameters that make some sort of sense

Let's try ioctl!
	I've never done that, so it'll be a great demo