ttread             96 kern/tty_conf.c 	{ ttyopen, ttylclose, ttread, ttwrite, nullioctl,
ttread            103 kern/tty_conf.c 	{ ttyopen, ttylclose, ttread, ttwrite, nullioctl,
ttread            139 kern/tty_conf.c 	{ nmeaopen, nmeaclose, ttread, ttwrite, nullioctl,
ttread            269 sys/tty.h      int	 ttread(struct tty *tp, struct uio *uio, int flag);