Index: uspace/lib/usb/include/usb/host/device_keeper.h
===================================================================
--- uspace/lib/usb/include/usb/host/device_keeper.h	(revision 297341b5e6db2cc88ce5f3884e786d065490545e)
+++ uspace/lib/usb/include/usb/host/device_keeper.h	(revision 1998bcd74c2564129f5663487195a7f45d99a7bb)
@@ -73,4 +73,6 @@
 void usb_device_keeper_add_ep(
     usb_device_keeper_t *instance, usb_address_t address, endpoint_t *ep);
+void usb_device_keeper_del_ep(
+    usb_device_keeper_t *instance, usb_address_t address, endpoint_t *ep);
 
 void usb_device_keeper_reserve_default_address(
Index: uspace/lib/usb/include/usb/pipes.h
===================================================================
--- uspace/lib/usb/include/usb/pipes.h	(revision 297341b5e6db2cc88ce5f3884e786d065490545e)
+++ uspace/lib/usb/include/usb/pipes.h	(revision 1998bcd74c2564129f5663487195a7f45d99a7bb)
@@ -134,4 +134,6 @@
 int usb_pipe_initialize_from_configuration(usb_endpoint_mapping_t *,
     size_t, uint8_t *, size_t, usb_device_connection_t *);
+int usb_pipe_register_with_speed(usb_pipe_t *, usb_speed_t,
+    unsigned int, usb_hc_connection_t *);
 int usb_pipe_register(usb_pipe_t *, unsigned int, usb_hc_connection_t *);
 int usb_pipe_unregister(usb_pipe_t *, usb_hc_connection_t *);
Index: uspace/lib/usb/src/host/device_keeper.c
===================================================================
--- uspace/lib/usb/src/host/device_keeper.c	(revision 297341b5e6db2cc88ce5f3884e786d065490545e)
+++ uspace/lib/usb/src/host/device_keeper.c	(revision 1998bcd74c2564129f5663487195a7f45d99a7bb)
@@ -56,6 +56,10 @@
 		instance->devices[i].control_used = 0;
 		instance->devices[i].handle = 0;
+		instance->devices[i].speed = USB_SPEED_MAX;
 		list_initialize(&instance->devices[i].endpoints);
 	}
+	// TODO: is this hack enough?
+	// (it is needed to allow smooth registration at default address)
+	instance->devices[0].occupied = true;
 }
 /*----------------------------------------------------------------------------*/
@@ -67,4 +71,15 @@
 	assert(instance->devices[address].occupied);
 	list_append(&ep->same_device_eps, &instance->devices[address].endpoints);
+	fibril_mutex_unlock(&instance->guard);
+}
+/*----------------------------------------------------------------------------*/
+void usb_device_keeper_del_ep(
+    usb_device_keeper_t *instance, usb_address_t address, endpoint_t *ep)
+{
+	assert(instance);
+	fibril_mutex_lock(&instance->guard);
+	assert(instance->devices[address].occupied);
+	list_remove(&ep->same_device_eps);
+	list_initialize(&ep->same_device_eps);
 	fibril_mutex_unlock(&instance->guard);
 }
Index: uspace/lib/usb/src/pipesinit.c
===================================================================
--- uspace/lib/usb/src/pipesinit.c	(revision 297341b5e6db2cc88ce5f3884e786d065490545e)
+++ uspace/lib/usb/src/pipesinit.c	(revision 1998bcd74c2564129f5663487195a7f45d99a7bb)
@@ -461,4 +461,25 @@
     usb_hc_connection_t *hc_connection)
 {
+	return usb_pipe_register_with_speed(pipe, USB_SPEED_MAX + 1,
+	    interval, hc_connection);
+}
+
+/** Register endpoint with a speed at the host controller.
+ *
+ * You will rarely need to use this function because it is needed only
+ * if the registered endpoint is of address 0 and there is no other way
+ * to tell speed of the device at address 0.
+ *
+ * @param pipe Pipe to be registered.
+ * @param speed Speed of the device
+ *	(invalid speed means use previously specified one).
+ * @param interval Polling interval.
+ * @param hc_connection Connection to the host controller (must be opened).
+ * @return Error code.
+ */
+int usb_pipe_register_with_speed(usb_pipe_t *pipe, usb_speed_t speed,
+    unsigned int interval,
+    usb_hc_connection_t *hc_connection)
+{
 	assert(pipe);
 	assert(hc_connection);
@@ -468,13 +489,15 @@
 	}
 
-#define _PACK(high, low) ((high) * 256 + (low))
-
-	return async_req_5_0(hc_connection->hc_phone,
+#define _PACK2(high, low) (((high) << 16) + (low))
+#define _PACK3(high, middle, low) (((((high) << 8) + (middle)) << 8) + (low))
+
+	return async_req_4_0(hc_connection->hc_phone,
 	    DEV_IFACE_ID(USBHC_DEV_IFACE), IPC_M_USBHC_REGISTER_ENDPOINT,
-	    _PACK(pipe->wire->address, pipe->endpoint_no),
-	    _PACK(pipe->transfer_type, pipe->direction),
-	    pipe->max_packet_size, interval);
-
-#undef _PACK
+	    _PACK2(pipe->wire->address, pipe->endpoint_no),
+	    _PACK3(speed, pipe->transfer_type, pipe->direction),
+	    _PACK2(pipe->max_packet_size, interval));
+
+#undef _PACK2
+#undef _PACK3
 }