99 	int sc_tail;  member
281 	next = (sc->sc_tail + 1) % HIDRAW_BUFFER_SIZE;  in hidraw_intr()
285 	bcopy(buf, sc->sc_q + sc->sc_tail * sc->sc_rdesc->rdsize, len);  in hidraw_intr()
289 		bzero(sc->sc_q + sc->sc_tail * sc->sc_rdesc->rdsize + len,  in hidraw_intr()
292 	sc->sc_qlen[sc->sc_tail] = len;  in hidraw_intr()
293 	sc->sc_tail = next;  in hidraw_intr()
377 	sc->sc_head = sc->sc_tail = 0;  in hidraw_open()
395 	sc->sc_tail = sc->sc_head = 0;  in hidraw_dtor()
439 	while (sc->sc_tail == sc->sc_head && !sc->sc_state.flush) {  in hidraw_read()
457 	while (sc->sc_tail != sc->sc_head && uio->uio_resid > 0) {  in hidraw_read()
672 		sc->sc_tail = sc->sc_head = 0;  in hidraw_ioctl()
911 		if (sc->sc_head != sc->sc_tail)  in hidraw_poll()
962 		ret = (sc->sc_head != sc->sc_tail) ? 1 : 0;  in hidraw_kqread()