data_out         1497 dev/ic/bha.c   	ccb->data_out = 0;
data_out          201 dev/ic/bhareg.h 			data_out		:1,
data_out          207 dev/ic/bhareg.h 			data_out		:1,
data_out         1352 dev/isa/aha.c  	ccb->data_out = 0;
data_out          106 dev/isa/ahareg.h 	u_char data_out:1;	/* must be 0 */