707 tty_kqops_read_detach(struct knote *kn)  in tty_kqops_read_detach()  argument
709 	struct tty *tp = kn->kn_hook;  in tty_kqops_read_detach()
711 	knlist_remove(&tp->t_inpoll.si_note, kn, 0);  in tty_kqops_read_detach()
715 tty_kqops_read_event(struct knote *kn, long hint __unused)  in tty_kqops_read_event()  argument
717 	struct tty *tp = kn->kn_hook;  in tty_kqops_read_event()
722 		kn->kn_flags |= EV_EOF;  in tty_kqops_read_event()
725 		kn->kn_data = ttydisc_read_poll(tp);  in tty_kqops_read_event()
726 		return (kn->kn_data > 0);  in tty_kqops_read_event()
731 tty_kqops_write_detach(struct knote *kn)  in tty_kqops_write_detach()  argument
733 	struct tty *tp = kn->kn_hook;  in tty_kqops_write_detach()
735 	knlist_remove(&tp->t_outpoll.si_note, kn, 0);  in tty_kqops_write_detach()
739 tty_kqops_write_event(struct knote *kn, long hint __unused)  in tty_kqops_write_event()  argument
741 	struct tty *tp = kn->kn_hook;  in tty_kqops_write_event()
746 		kn->kn_flags |= EV_EOF;  in tty_kqops_write_event()
749 		kn->kn_data = ttydisc_write_poll(tp);  in tty_kqops_write_event()
750 		return (kn->kn_data > 0);  in tty_kqops_write_event()
767 ttydev_kqfilter(struct cdev *dev, struct knote *kn)  in ttydev_kqfilter()  argument
776 	switch (kn->kn_filter) {  in ttydev_kqfilter()
778 		kn->kn_hook = tp;  in ttydev_kqfilter()
779 		kn->kn_fop = &tty_kqops_read;  in ttydev_kqfilter()
780 		knlist_add(&tp->t_inpoll.si_note, kn, 1);  in ttydev_kqfilter()
783 		kn->kn_hook = tp;  in ttydev_kqfilter()
784 		kn->kn_fop = &tty_kqops_write;  in ttydev_kqfilter()
785 		knlist_add(&tp->t_outpoll.si_note, kn, 1);  in ttydev_kqfilter()