bha_find
rv = bha_find(iot, ioh2);
return bha_find(iot, ioh) && bha_inquire_config(iot, ioh, bpd);
int bha_find(bus_space_tag_t, bus_space_handle_t);
if (!bha_find(iot, ioh))
rv = bha_find(iot, ioh);