680 udsir_kqfilter(void *h, struct knote *kn)  in udsir_kqfilter()  argument
686 	switch (kn->kn_filter) {  in udsir_kqfilter()
689 		kn->kn_fop = &udsirread_filtops;  in udsir_kqfilter()
693 		kn->kn_fop = &udsirwrite_filtops;  in udsir_kqfilter()
699 	kn->kn_hook = sc;  in udsir_kqfilter()
702 	selrecord_knote(sip, kn);  in udsir_kqfilter()
769 filt_udsirrdetach(struct knote *kn)  in filt_udsirrdetach()  argument
771 	struct udsir_softc *sc = kn->kn_hook;  in filt_udsirrdetach()
775 	selremove_knote(&sc->sc_rd_sel, kn);  in filt_udsirrdetach()
781 filt_udsirread(struct knote *kn, long hint)  in filt_udsirread()  argument
783 	struct udsir_softc *sc = kn->kn_hook;  in filt_udsirread()
785 	kn->kn_data = sc->sc_ur_framelen;  in filt_udsirread()
786 	return kn->kn_data > 0;  in filt_udsirread()
790 filt_udsirwdetach(struct knote *kn)  in filt_udsirwdetach()  argument
792 	struct udsir_softc *sc = kn->kn_hook;  in filt_udsirwdetach()
796 	selremove_knote(&sc->sc_wr_sel, kn);  in filt_udsirwdetach()
802 filt_udsirwrite(struct knote *kn, long hint)  in filt_udsirwrite()  argument
804 	struct udsir_softc *sc = kn->kn_hook;  in filt_udsirwrite()
806 	kn->kn_data = 0;  in filt_udsirwrite()