OFFICE HOURS EMAIL NOTIFICATION GROUP FORMATION -- by Friday. pointer to function show a simple, intramodule cal show that there's more than one way to pass args -- can do via a struct show that we can pass a struct across module boundaries show that we can pass a struct through an indirection mechanism (SYSCALL) - defined -- user.c -- os.h -- os_user.c -- os_traphandler.c __ os_utils.c