506 filt_bpprdetach(struct knote *kn)  in filt_bpprdetach()  argument
508 	struct bpp_softc *sc = kn->kn_hook;  in filt_bpprdetach()
512 	selremove_knote(&sc->sc_rsel, kn);  in filt_bpprdetach()
517 filt_bppread(struct knote *kn, long hint)  in filt_bppread()  argument
531 filt_bppwdetach(struct knote *kn)  in filt_bppwdetach()  argument
533 	struct bpp_softc *sc = kn->kn_hook;  in filt_bppwdetach()
537 	selremove_knote(&sc->sc_wsel, kn);  in filt_bppwdetach()
542 filt_bpfwrite(struct knote *kn, long hint)  in filt_bpfwrite()  argument
544 	struct bpp_softc *sc = kn->kn_hook;  in filt_bpfwrite()
549 	kn->kn_data = 0;	/* XXXLUKEM (thorpej): what to put here? */  in filt_bpfwrite()
561 bppkqfilter(dev_t dev, struct knote *kn)  in bppkqfilter()  argument
569 	switch (kn->kn_filter) {  in bppkqfilter()
572 		kn->kn_fop = &bppread_filtops;  in bppkqfilter()
577 		kn->kn_fop = &bppwrite_filtops;  in bppkqfilter()
584 	kn->kn_hook = sc;  in bppkqfilter()
587 	selrecord_knote(sip, kn);  in bppkqfilter()