changer_exchange  114 scsi/ch.c      int	ch_exchange(struct ch_softc *, struct changer_exchange *);
changer_exchange  309 scsi/ch.c      		error = ch_exchange(sc, (struct changer_exchange *)data);
changer_exchange  406 scsi/ch.c      	struct changer_exchange *ce;
changer_exchange   84 sys/chio.h     struct changer_exchange {
changer_exchange  169 sys/chio.h     #define CHIOEXCHANGE	_IOW('c', 0x42, struct changer_exchange)