io/ttymux/ttymux.c

555 				plqi->sm_uqflags |= SM_UQVALID;
630 			plqi->sm_uqflags &= ~(SM_UQVALID|SM_OBPCNDEV);
1427 	if (lqi->sm_uqflags & SM_UQVALID) {
1688 		if ((lqi->sm_uqflags & SM_OBPCNDEV) &&
1731 		if ((lqi->sm_uqflags & SM_OBPCNDEV) && /* console stream */
1754 	if ((lqi->sm_uqflags & SM_UQVALID) && SM_RQ(lqi->sm_uqi)) {
1876 	if (lqi->sm_uqflags & SM_UQVALID && SM_RQ(lqi->sm_uqi)) {
2252 			lqi->sm_uqflags |= SM_UQVALID;
2295 						lqi->sm_uqflags &= ~SM_UQVALID;
2359 		lqi->sm_uqflags &= ~SM_UQVALID;