sp_dtr            140 dev/sbus/spif.c 	sc->sc_ttys->sc_port[(port)].sp_dtr = v;			\
sp_dtr            145 dev/sbus/spif.c #define	DTR_READ(sc,port)	((sc)->sc_ttys->sc_port[(port)].sp_dtr)
sp_dtr             51 dev/sbus/spifvar.h 	char sp_dtr;			/* software dtr status */