tag	line	file	source code
TTY_DRIVER_MAGIC	1542	drivers/char/console.c	console_driver.magic = TTY_DRIVER_MAGIC;
TTY_DRIVER_MAGIC	218	drivers/char/pty.c	pty_driver.magic = TTY_DRIVER_MAGIC;
TTY_DRIVER_MAGIC	2279	drivers/char/serial.c	serial_driver.magic = TTY_DRIVER_MAGIC;