CHWFLOW           896 dev/usb/ucom.c 	if (!ISSET(t->c_cflag, CHWFLOW)) {
CHWFLOW           301 kern/tty.c     	if (ISSET(iflag, IXOFF) || ISSET(tp->t_cflag, CHWFLOW))
CHWFLOW          1279 kern/tty.c     		if (ISSET(tp->t_cflag, CHWFLOW) && tp->t_hwiflow &&
CHWFLOW          1626 kern/tty.c     		if (ISSET(tp->t_cflag, CHWFLOW) && tp->t_hwiflow &&