topo_walk_byid
return (topo_walk_byid(hwp->hcw_wp, fname, 0));
return (topo_walk_byid(hwp->hcw_wp, name, inst));
status = topo_walk_byid(wp, name, inst);
extern int topo_walk_byid(topo_walk_t *wp, const char *name, topo_instance_t);