did_BDF
did_BDF(didp, &bus, NULL, NULL);
extern void did_BDF(did_t *, int *, int *, int *);
did_BDF(pd, NULL, &d, &f);
did_BDF(pd, NULL, &d, &f);
did_BDF(np, &b, &d, &f);
did_BDF(didp, &b, NULL, NULL);
did_BDF(dp, &bus, &dev, NULL);
did_BDF(dp, &b, &d, &f);
did_BDF(adp, &b, &d, &f);
did_BDF(apdp, &b, &d, &f);
did_BDF(dp, NULL, &d, NULL);
did_BDF(pdp, NULL, &d, NULL);
did_BDF(pdp, NULL, &d, NULL);