memcpy(&h->device, &nodemgr_dev_template_host, sizeof(h->device));
        h->device.parent = dev;
        set_dev_node(&h->device, dev_to_node(dev));
-       snprintf(h->device.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
+       dev_set_name(&h->device, "fw-host%d", h->id);
 
        h->host_dev.parent = &h->device;
        h->host_dev.class = &hpsb_host_class;
-       snprintf(h->host_dev.bus_id, BUS_ID_SIZE, "fw-host%d", h->id);
+       dev_set_name(&h->host_dev, "fw-host%d", h->id);
 
        if (device_register(&h->device))
                goto fail;
 
        memcpy(&ne->device, &nodemgr_dev_template_ne,
               sizeof(ne->device));
        ne->device.parent = &host->device;
-       snprintf(ne->device.bus_id, BUS_ID_SIZE, "%016Lx",
-                (unsigned long long)(ne->guid));
+       dev_set_name(&ne->device, "%016Lx", (unsigned long long)(ne->guid));
 
        ne->node_dev.parent = &ne->device;
        ne->node_dev.class = &nodemgr_ne_class;
-       snprintf(ne->node_dev.bus_id, BUS_ID_SIZE, "%016Lx",
-               (unsigned long long)(ne->guid));
+       dev_set_name(&ne->node_dev, "%016Lx", (unsigned long long)(ne->guid));
 
        if (device_register(&ne->device))
                goto fail_devreg;
 
        ud->device.parent = parent;
 
-       snprintf(ud->device.bus_id, BUS_ID_SIZE, "%s-%u",
-                ne->device.bus_id, ud->id);
+       dev_set_name(&ud->device, "%s-%u", dev_name(&ne->device), ud->id);
 
        ud->unit_dev.parent = &ud->device;
        ud->unit_dev.class = &nodemgr_ud_class;
-       snprintf(ud->unit_dev.bus_id, BUS_ID_SIZE, "%s-%u",
-                ne->device.bus_id, ud->id);
+       dev_set_name(&ud->unit_dev, "%s-%u", dev_name(&ne->device), ud->id);
 
        if (device_register(&ud->device))
                goto fail_devreg;
 fail_classdevreg:
        device_unregister(&ud->device);
 fail_devreg:
-       HPSB_ERR("Failed to create unit %s", ud->device.bus_id);
+       HPSB_ERR("Failed to create unit %s", dev_name(&ud->device));
 }