Index: uspace/lib/usb/Makefile
===================================================================
--- uspace/lib/usb/Makefile	(revision 100962316f11f4d28cc4be7eaf39ac3705dc69ca)
+++ uspace/lib/usb/Makefile	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
@@ -38,4 +38,5 @@
 	src/hcdhubd.c \
 	src/hcdrv.c \
+	src/hidparser.c \
 	src/localdrv.c \
 	src/remotedrv.c \
Index: uspace/lib/usb/include/usb/classes/hidparser.h
===================================================================
--- uspace/lib/usb/include/usb/classes/hidparser.h	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
+++ uspace/lib/usb/include/usb/classes/hidparser.h	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
@@ -0,0 +1,65 @@
+/*
+ * 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 HID parser.
+ */
+#ifndef LIBUSB_HIDPARSER_H_
+#define LIBUSB_HIDPARSER_H_
+
+#include <stdint.h>
+
+/** HID report parser structure. */
+typedef struct {
+} usb_hid_report_parser_t;
+
+/** HID parser callbacks for IN items. */
+typedef struct {
+	/** Callback for keyboard.
+	 *
+	 * @param key_codes Array of pressed key (including modifiers).
+	 * @param count Length of @p key_codes.
+	 * @param arg Custom argument.
+	 */
+	void (*keyboard)(const uint32_t *key_codes, size_t count, void *arg);
+} usb_hid_report_in_callbacks_t;
+
+int usb_hid_parse_report_descriptor(usb_hid_report_parser_t *parser, 
+    const uint8_t *data);
+
+int usb_hid_parse_report(const usb_hid_report_parser_t *parser,  
+    const uint8_t *data,
+    const usb_hid_report_in_callbacks_t *callbacks, void *arg);
+
+#endif
+/**
+ * @}
+ */
Index: uspace/lib/usb/src/hidparser.c
===================================================================
--- uspace/lib/usb/src/hidparser.c	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
+++ uspace/lib/usb/src/hidparser.c	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
@@ -0,0 +1,70 @@
+/*
+ * 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 HID parser implementation.
+ */
+#include <usb/classes/hidparser.h>
+#include <errno.h>
+
+/** Parse HID report descriptor.
+ *
+ * @param parser Opaque HID report parser structure.
+ * @param data Data describing the report.
+ * @return Error code.
+ */
+int usb_hid_parse_report_descriptor(usb_hid_report_parser_t *parser, 
+    const uint8_t *data)
+{
+	return ENOTSUP;
+}
+
+/** Parse and act upon a HID report.
+ *
+ * @see usb_hid_parse_report_descriptor
+ *
+ * @param parser Opaque HID report parser structure.
+ * @param data Data for the report.
+ * @param callbacks Callbacks for report actions.
+ * @param arg Custom argument (passed through to the callbacks).
+ * @return Error code.
+ */
+int usb_hid_parse_report(const usb_hid_report_parser_t *parser,  
+    const uint8_t *data,
+    const usb_hid_report_in_callbacks_t *callbacks, void *arg)
+{
+	return ENOTSUP;
+}
+
+
+/**
+ * @}
+ */
Index: uspace/lib/usb/src/remotedrv.c
===================================================================
--- uspace/lib/usb/src/remotedrv.c	(revision 100962316f11f4d28cc4be7eaf39ac3705dc69ca)
+++ uspace/lib/usb/src/remotedrv.c	(revision fa9b606e0a4d7d2b81ec316d32d2e9c5ba285fc1)
@@ -300,5 +300,5 @@
  */
 static void remote_in_callback(usb_hc_device_t *hc,
-    usb_transaction_outcome_t outcome, size_t actual_size, void *arg)
+    size_t actual_size, usb_transaction_outcome_t outcome, void *arg)
 {
 	transfer_info_t *transfer = (transfer_info_t *) arg;