Index: uspace/lib/usbhost/Makefile
===================================================================
--- uspace/lib/usbhost/Makefile	(revision 3121b5f30ef34cc426b12f3245f12ebbbe102c32)
+++ uspace/lib/usbhost/Makefile	(revision e588d12330ac265c1a1189c72d7d9813fb1a049c)
@@ -39,5 +39,4 @@
 	src/endpoint.c \
 	src/hcd.c \
-	src/iface.c \
 	src/usb_endpoint_manager.c \
 	src/usb_transfer_batch.c
Index: uspace/lib/usbhost/src/ddf_helpers.c
===================================================================
--- uspace/lib/usbhost/src/ddf_helpers.c	(revision 3121b5f30ef34cc426b12f3245f12ebbbe102c32)
+++ uspace/lib/usbhost/src/ddf_helpers.c	(revision e588d12330ac265c1a1189c72d7d9813fb1a049c)
@@ -45,6 +45,4 @@
 
 #define CTRL_PIPE_MIN_PACKET_SIZE 8
-
-extern usbhc_iface_t hcd_iface;
 
 typedef struct hc_dev {
Index: pace/lib/usbhost/src/iface.c
===================================================================
--- uspace/lib/usbhost/src/iface.c	(revision 3121b5f30ef34cc426b12f3245f12ebbbe102c32)
+++ 	(revision )
@@ -1,90 +1,0 @@
-/*
- * Copyright (c) 2011 Jan Vesely
- * 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 libusbhost
- * @{
- */
-/** @file
- * @brief HCD DDF interface implementation
- */
-
-#include <ddf/driver.h>
-#include <errno.h>
-
-#include <usb/debug.h>
-#include <usb/host/endpoint.h>
-#include <usb/host/hcd.h>
-#include "ddf_helpers.h"
-
-/** Inbound communication interface function.
- * @param fun DDF function.
- * @param target Communication target.
- * @param setup_data Data to use in setup stage (control transfers).
- * @param data Pointer to data buffer.
- * @param size Size of the data buffer.
- * @param callback Function to call on communication end.
- * @param arg Argument passed to the callback function.
- * @return Error code.
- */
-static int usb_read(ddf_fun_t *fun, usb_target_t target, uint64_t setup_data,
-    uint8_t *data, size_t size, usbhc_iface_transfer_in_callback_t callback,
-    void *arg)
-{
-	return hcd_send_batch(dev_to_hcd(ddf_fun_get_dev(fun)), target,
-	    USB_DIRECTION_IN, data, size, setup_data, callback, NULL, arg,
-	    "READ");
-}
-
-/** Outbound communication interface function.
- * @param fun DDF function.
- * @param target Communication target.
- * @param setup_data Data to use in setup stage (control transfers).
- * @param data Pointer to data buffer.
- * @param size Size of the data buffer.
- * @param callback Function to call on communication end.
- * @param arg Argument passed to the callback function.
- * @return Error code.
- */
-static int usb_write(ddf_fun_t *fun, usb_target_t target, uint64_t setup_data,
-    const uint8_t *data, size_t size,
-    usbhc_iface_transfer_out_callback_t callback, void *arg)
-{
-	return hcd_send_batch(dev_to_hcd(ddf_fun_get_dev(fun)),
-	    target, USB_DIRECTION_OUT, (uint8_t*)data, size, setup_data, NULL,
-	    callback, arg, "WRITE");
-}
-
-/** usbhc Interface implementation using hcd_t from libusbhost library. */
-usbhc_iface_t hcd_iface = {
-	.read = usb_read,
-	.write = usb_write,
-};
-
-/**
- * @}
- */