Index: uspace/lib/usbhost/src/ddf_helpers.c
===================================================================
--- uspace/lib/usbhost/src/ddf_helpers.c	(revision b99518342d813d6feafc58b7a12e787053a9f106)
+++ uspace/lib/usbhost/src/ddf_helpers.c	(revision 56bd6f11931a299ed51fe23298c3b04e6a17ca50)
@@ -77,4 +77,56 @@
 } usb_dev_t;
 
+static int reserve_default_address(ddf_fun_t *fun, usb_speed_t speed)
+{
+	assert(fun);
+	hcd_t *hcd = dev_to_hcd(ddf_fun_get_dev(fun));
+	usb_dev_t *dev = ddf_fun_data_get(fun);
+	assert(hcd);
+	assert(dev);
+
+	usb_log_debug("Device %d requested default address at %s speed\n",
+	    dev->address, usb_str_speed(speed));
+	return hcd_reserve_default_address(hcd, speed);
+}
+
+static int release_default_address(ddf_fun_t *fun)
+{
+	assert(fun);
+	hcd_t *hcd = dev_to_hcd(ddf_fun_get_dev(fun));
+	usb_dev_t *dev = ddf_fun_data_get(fun);
+	assert(hcd);
+	assert(dev);
+
+	usb_log_debug("Device %d released default address\n", dev->address);
+	return hcd_release_default_address(hcd);
+}
+
+static int device_enumerate(ddf_fun_t *fun, usb_device_handle_t *handle)
+{
+	assert(fun);
+	ddf_dev_t *ddf_dev = ddf_fun_get_dev(fun);
+	usb_dev_t *dev = ddf_fun_data_get(fun);
+	assert(ddf_dev);
+	assert(dev);
+	usb_address_t address;
+	usb_log_debug("Device %d reported a new USB device\n", dev->address);
+	const int ret = hcd_ddf_new_device(ddf_dev, &address);
+	if (ret == EOK && handle)
+		*handle = address;
+	return ret;
+}
+
+static int device_remove(ddf_fun_t *fun, usb_device_handle_t handle)
+{
+	assert(fun);
+	ddf_dev_t *ddf_dev = ddf_fun_get_dev(fun);
+	usb_dev_t *dev = ddf_fun_data_get(fun);
+	assert(ddf_dev);
+	assert(dev);
+	usb_log_debug("Device %d reported removal of device %d\n",
+	    dev->address, (int)handle);
+	return hcd_ddf_remove_device(ddf_dev, (usb_address_t)handle);
+}
+
 /** Get USB address assigned to root hub.
  *
@@ -114,4 +166,9 @@
 	.get_hc_handle = get_hc_handle,
 	.get_my_address = get_my_address,
+
+	.reserve_default_address = reserve_default_address,
+	.release_default_address = release_default_address,
+	.device_enumerate = device_enumerate,
+	.device_remove = device_remove,
 };
 /** Standard USB RH options (RH interface) */