Index: uspace/lib/usb/Makefile
===================================================================
--- uspace/lib/usb/Makefile	(revision 3f45993eb7dca245d8cf7a8185f179b4537df8d3)
+++ uspace/lib/usb/Makefile	(revision f995350fcca3ed6fcf7ef3fb0f8cda7b9fffc0ef)
@@ -39,4 +39,5 @@
 	src/remotedrv.c \
 	src/usb.c \
+	src/usbdrvreq.c \
 	src/usbdrv.c
 
Index: uspace/lib/usb/include/usb/usb.h
===================================================================
--- uspace/lib/usb/include/usb/usb.h	(revision 3f45993eb7dca245d8cf7a8185f179b4537df8d3)
+++ uspace/lib/usb/include/usb/usb.h	(revision f995350fcca3ed6fcf7ef3fb0f8cda7b9fffc0ef)
@@ -69,4 +69,7 @@
 typedef int usb_address_t;
 
+/** Default USB address. */
+#define USB_ADDRESS_DEFAULT 0
+
 /** USB endpoint number type.
  * Negative values could be used to indicate error.
Index: uspace/lib/usb/include/usb/usbdrv.h
===================================================================
--- uspace/lib/usb/include/usb/usbdrv.h	(revision 3f45993eb7dca245d8cf7a8185f179b4537df8d3)
+++ uspace/lib/usb/include/usb/usbdrv.h	(revision f995350fcca3ed6fcf7ef3fb0f8cda7b9fffc0ef)
@@ -36,5 +36,5 @@
 #define LIBUSB_USBDRV_H_
 
-#include "usb.h"
+#include <usb/usb.h>
 #include <driver.h>
 
@@ -70,4 +70,7 @@
 int usb_drv_async_wait_for(usb_handle_t);
 
+
+int usb_drv_req_set_address(int, usb_address_t, usb_address_t);
+
 #endif
 /**
Index: uspace/lib/usb/src/usbdrvreq.c
===================================================================
--- uspace/lib/usb/src/usbdrvreq.c	(revision f995350fcca3ed6fcf7ef3fb0f8cda7b9fffc0ef)
+++ uspace/lib/usb/src/usbdrvreq.c	(revision f995350fcca3ed6fcf7ef3fb0f8cda7b9fffc0ef)
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010 Vojtech Horky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libusb usb
+ * @{
+ */
+/** @file
+ * @brief USB driver - standard USB requests (implementation).
+ */
+#include <usb/usbdrv.h>
+#include <usb/devreq.h>
+#include <errno.h>
+
+/** Change address of connected device.
+ *
+ * @see usb_drv_reserve_default_address
+ * @see usb_drv_release_default_address
+ * @see usb_drv_request_address
+ * @see usb_drv_release_address
+ * @see usb_drv_bind_address
+ *
+ * @param phone Open phone to HC driver.
+ * @param old_address Current address.
+ * @param address Address to be set.
+ * @return Error code.
+ */
+int usb_drv_req_set_address(int phone, usb_address_t old_address,
+    usb_address_t new_address)
+{
+	/* Prepare the target. */
+	usb_target_t target = {
+		.address = old_address,
+		.endpoint = 0
+	};
+
+	/* Prepare the setup packet. */
+	usb_device_request_setup_packet_t setup_packet = {
+		.request_type = 0,
+		.request = USB_DEVREQ_SET_ADDRESS,
+		.index = 0,
+		.length = 0,
+	};
+	setup_packet.value = new_address;
+
+	usb_handle_t handle;
+	int rc;
+
+	/* Start the control write transfer. */
+	rc = usb_drv_async_control_write_setup(phone, target,
+	    &setup_packet, sizeof(setup_packet), &handle);
+	if (rc != EOK) {
+		return rc;
+	}
+	rc = usb_drv_async_wait_for(handle);
+	if (rc != EOK) {
+		return rc;
+	}
+
+	/* Finish the control write transfer. */
+	rc = usb_drv_async_control_write_status(phone, target, &handle);
+	if (rc != EOK) {
+		return rc;
+	}
+	rc = usb_drv_async_wait_for(handle);
+	if (rc != EOK) {
+		return rc;
+	}
+
+	return EOK;
+}
+
+/**
+ * @}
+ */