98 	int sc_head;  member
282 	if (sc->sc_state.quiet || next == sc->sc_head)  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()
459 		    sc->sc_rdesc->isize : sc->sc_qlen[sc->sc_head]);  in hidraw_read()
464 		error = uiomove(sc->sc_q + sc->sc_head * sc->sc_rdesc->rdsize,  in hidraw_read()
471 		sc->sc_head = (sc->sc_head + 1) % HIDRAW_BUFFER_SIZE;  in hidraw_read()
673 		sc->sc_tail = sc->sc_head = 0;  in hidraw_ioctl()
953 		if (sc->sc_head != sc->sc_tail)  in hidraw_poll()
1004 		ret = (sc->sc_head != sc->sc_tail) ? 1 : 0;  in hidraw_kqread()