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diff --git a/LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h b/LUFA/Drivers/USB/Class/Common/MIDIClassCommon.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Common definitions and declarations for the library USB MIDI Class driver.
+ *
+ *  Common definitions and declarations for the library USB MIDI Class driver.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the USB module driver
+ *        dispatch header located in LUFA/Drivers/USB.h.
+ */
+
+/** \ingroup Group_USBClassMIDI
+ *  \defgroup Group_USBClassMIDICommon  Common Class Definitions
+ *
+ *  \section Sec_USBClassMIDICommon_ModDescription Module Description
+ *  Constants, Types and Enum definitions that are common to both Device and Host modes for the USB
+ *  MIDI Class.
+ *
+ *  @{
+ */
+
+#ifndef _MIDI_CLASS_COMMON_H_
+#define _MIDI_CLASS_COMMON_H_
+
+	/* Macros: */
+		#define __INCLUDE_FROM_AUDIO_DRIVER
+
+	/* Includes: */
+		#include "../../Core/StdDescriptors.h"
+		#include "AudioClassCommon.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_MIDI_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
+		#endif
+
+	/* Macros: */
+		/** \name MIDI Command Values
+		 *  See http://www.midi.org/techspecs/midimessages.php for more information.
+		 */
+		//@{
+		/** MIDI command for System Exclusive (SysEx) single event that has one byte of data total. */
+		#define MIDI_COMMAND_SYSEX_1BYTE           MIDI_COMMAND_SYSEX_END_1BYTE
+
+		/** MIDI command for System Exclusive (SysEx) single event that has two bytes of data total. */
+		#define MIDI_COMMAND_SYSEX_2BYTE           0x20
+
+		/** MIDI command for System Exclusive (SysEx) single event that has three bytes of data total. */
+		#define MIDI_COMMAND_SYSEX_3BYTE           0x30
+
+		/** MIDI command for System Exclusive (SysEx) stream event that has at least four bytes of data total. */
+		#define MIDI_COMMAND_SYSEX_START_3BYTE     0x40
+
+		/** MIDI command for System Exclusive (SysEx) stream event terminator with one remaining data byte. */
+		#define MIDI_COMMAND_SYSEX_END_1BYTE       0x50
+
+		/** MIDI command for System Exclusive (SysEx) stream event terminator with two remaining data bytes. */
+		#define MIDI_COMMAND_SYSEX_END_2BYTE       0x60
+
+		/** MIDI command for System Exclusive (SysEx) stream event terminator with three remaining data bytes. */
+		#define MIDI_COMMAND_SYSEX_END_3BYTE       0x70
+
+		/** MIDI command for a note off (deactivation) event. */
+		#define MIDI_COMMAND_NOTE_OFF              0x80
+
+		/** MIDI command for a note on (activation) event. */
+		#define MIDI_COMMAND_NOTE_ON               0x90
+
+		/** MIDI command for a note pressure change event. */
+		#define MIDI_COMMAND_NOTE_PRESSURE         0xA0
+
+		/** MIDI command for a control change event. */
+		#define MIDI_COMMAND_CONTROL_CHANGE        0xB0
+
+		/** MIDI command for a control change event. */
+		#define MIDI_COMMAND_PROGRAM_CHANGE        0xC0
+
+		/** MIDI command for a channel pressure change event. */
+		#define MIDI_COMMAND_CHANNEL_PRESSURE      0xD0
+
+		/** MIDI command for a pitch change event. */
+		#define MIDI_COMMAND_PITCH_WHEEL_CHANGE    0xE0
+		//@}
+
+		/** Standard key press velocity value used for all note events. */
+		#define MIDI_STANDARD_VELOCITY             64
+
+		/** Convenience macro. MIDI channels are numbered from 1-10 (natural numbers) however the logical channel
+		 *  addresses are zero-indexed. This converts a natural MIDI channel number into the logical channel address.
+		 *
+		 *  \param[in] channel  MIDI channel number to address.
+		 *
+		 *  \return Constructed MIDI channel ID.
+		 */
+		#define MIDI_CHANNEL(channel)              ((channel) - 1)
+
+		/** Constructs a MIDI event ID from a given MIDI command and a virtual MIDI cable index. This can then be
+		 *  used to create and decode \ref MIDI_EventPacket_t MIDI event packets.
+		 *
+		 *  \param[in] virtualcable  Index of the virtual MIDI cable the event relates to
+		 *  \param[in] command       MIDI command to send through the virtual MIDI cable
+		 *
+		 *  \return Constructed MIDI event ID.
+		 */
+		#define MIDI_EVENT(virtualcable, command)  (((virtualcable) << 4) | ((command) >> 4))
+
+	/* Enums: */
+		/** Enum for the possible MIDI jack types in a MIDI device jack descriptor. */
+		enum MIDI_JackTypes_t
+		{
+			MIDI_JACKTYPE_Embedded = 0x01, /**< MIDI class descriptor jack type value for an embedded (logical) MIDI input or output jack. */
+			MIDI_JACKTYPE_External = 0x02, /**< MIDI class descriptor jack type value for an external (physical) MIDI input or output jack. */
+		};
+
+	/* Type Defines: */
+		/** \brief MIDI class-specific Streaming Interface Descriptor (LUFA naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI streaming interface descriptor. This indicates to the host
+		 *  how MIDI the specification compliance of the device and the total length of the Audio class-specific descriptors.
+		 *  See the USB Audio specification for more details.
+		 *
+		 *  \see \ref USB_MIDI_StdDescriptor_AudioInterface_AS_t for the version of this type with standard element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
+			uint8_t                 Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint16_t                AudioSpecification; /**< Binary coded decimal value, indicating the supported Audio Class
+			                                             *   specification version.
+			                                             *
+			                                             *   \see \ref VERSION_BCD() utility macro.
+			                                             */
+			uint16_t                TotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
+		} ATTR_PACKED USB_MIDI_Descriptor_AudioInterface_AS_t;
+
+		/** \brief MIDI class-specific Streaming Interface Descriptor (USB-IF naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI streaming interface descriptor. This indicates to the host
+		 *  how MIDI the specification compliance of the device and the total length of the Audio class-specific descriptors.
+		 *  See the USB Audio specification for more details.
+		 *
+		 *  \see \ref USB_MIDI_Descriptor_AudioInterface_AS_t for the version of this type with non-standard LUFA specific
+		 *       element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			uint8_t  bLength; /**< Size of the descriptor, in bytes. */
+			uint8_t  bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+			                           *   given by the specific class.
+			                           */
+
+			uint8_t  bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint16_t bcdMSC; /**< Binary coded decimal value, indicating the supported MIDI Class specification version.
+			                  *
+			                  *   \see \ref VERSION_BCD() utility macro.
+			                  */
+			uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
+		} ATTR_PACKED USB_MIDI_StdDescriptor_AudioInterface_AS_t;
+
+		/** \brief MIDI class-specific Input Jack Descriptor (LUFA naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI IN jack. This gives information to the host on a MIDI input, either
+		 *  a physical input jack, or a logical jack (receiving input data internally, or from the host via an endpoint).
+		 *
+		 *  \see \ref USB_MIDI_StdDescriptor_InputJack_t for the version of this type with standard element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Header_t Header; /**< Regular descriptor header containing the descriptor's type and length. */
+			uint8_t                 Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t                 JackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */
+			uint8_t                 JackID; /**< ID value of this jack - must be a unique value within the device. */
+
+			uint8_t                 JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
+		} ATTR_PACKED USB_MIDI_Descriptor_InputJack_t;
+
+		/** \brief MIDI class-specific Input Jack Descriptor (USB-IF naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI IN jack. This gives information to the host on a MIDI input, either
+		 *  a physical input jack, or a logical jack (receiving input data internally, or from the host via an endpoint).
+		 *
+		 *  \see \ref USB_MIDI_Descriptor_InputJack_t for the version of this type with non-standard LUFA specific
+		 *       element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			uint8_t  bLength; /**< Size of the descriptor, in bytes. */
+			uint8_t  bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+			                           *   given by the specific class.
+			                           */
+
+			uint8_t  bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t  bJackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */
+			uint8_t  bJackID; /**< ID value of this jack - must be a unique value within the device. */
+
+			uint8_t  iJack; /**< Index of a string descriptor describing this descriptor within the device. */
+		} ATTR_PACKED USB_MIDI_StdDescriptor_InputJack_t;
+
+		/** \brief MIDI class-specific Output Jack Descriptor (LUFA naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI OUT jack. This gives information to the host on a MIDI output, either
+		 *  a physical output jack, or a logical jack (sending output data internally, or to the host via an endpoint).
+		 *
+		 *  \see \ref USB_MIDI_StdDescriptor_OutputJack_t for the version of this type with standard element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Header_t   Header; /**< Regular descriptor header containing the descriptor's type and length. */
+			uint8_t                   Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t                   JackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */
+			uint8_t                   JackID; /**< ID value of this jack - must be a unique value within the device. */
+
+			uint8_t                   NumberOfPins; /**< Number of output channels within the jack, either physical or logical. */
+			uint8_t                   SourceJackID[1]; /**< ID of each output pin's source data jack. */
+			uint8_t                   SourcePinID[1]; /**< Pin number in the input jack of each output pin's source data. */
+
+			uint8_t                   JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
+		} ATTR_PACKED USB_MIDI_Descriptor_OutputJack_t;
+
+		/** \brief MIDI class-specific Output Jack Descriptor (USB-IF naming conventions).
+		 *
+		 *  Type define for an Audio class-specific MIDI OUT jack. This gives information to the host on a MIDI output, either
+		 *  a physical output jack, or a logical jack (sending output data internally, or to the host via an endpoint).
+		 *
+		 *  \see \ref USB_MIDI_Descriptor_OutputJack_t for the version of this type with non-standard LUFA specific
+		 *       element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			uint8_t  bLength; /**< Size of the descriptor, in bytes. */
+			uint8_t  bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+			                           *   given by the specific class.
+			                           */
+
+			uint8_t  bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t  bJackType; /**< Type of jack, one of the \c JACKTYPE_* mask values. */
+			uint8_t  bJackID; /**< ID value of this jack - must be a unique value within the device. */
+
+			uint8_t  bNrInputPins; /**< Number of output channels within the jack, either physical or logical. */
+			uint8_t  baSourceID[1]; /**< ID of each output pin's source data jack. */
+			uint8_t  baSourcePin[1]; /**< Pin number in the input jack of each output pin's source data. */
+
+			uint8_t  iJack; /**< Index of a string descriptor describing this descriptor within the device. */
+		} ATTR_PACKED USB_MIDI_StdDescriptor_OutputJack_t;
+
+		/** \brief Audio class-specific Jack Endpoint Descriptor (LUFA naming conventions).
+		 *
+		 *  Type define for an Audio class-specific extended MIDI jack endpoint descriptor. This contains extra information
+		 *  on the usage of MIDI endpoints used to stream MIDI events in and out of the USB Audio device, and follows an Audio
+		 *  class-specific extended MIDI endpoint descriptor. See the USB Audio specification for more details.
+		 *
+		 *  \see \ref USB_MIDI_StdDescriptor_Jack_Endpoint_t for the version of this type with standard element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Header_t   Header; /**< Regular descriptor header containing the descriptor's type and length. */
+			uint8_t                   Subtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t                   TotalEmbeddedJacks; /**< Total number of jacks inside this endpoint. */
+			uint8_t                   AssociatedJackID[1]; /**< IDs of each jack inside the endpoint. */
+		} ATTR_PACKED USB_MIDI_Descriptor_Jack_Endpoint_t;
+
+		/** \brief Audio class-specific Jack Endpoint Descriptor (USB-IF naming conventions).
+		 *
+		 *  Type define for an Audio class-specific extended MIDI jack endpoint descriptor. This contains extra information
+		 *  on the usage of MIDI endpoints used to stream MIDI events in and out of the USB Audio device, and follows an Audio
+		 *  class-specific extended MIDI endpoint descriptor. See the USB Audio specification for more details.
+		 *
+		 *  \see \ref USB_MIDI_Descriptor_Jack_Endpoint_t for the version of this type with non-standard LUFA specific
+		 *       element names.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			uint8_t  bLength; /**< Size of the descriptor, in bytes. */
+			uint8_t  bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+			                           *   given by the specific class.
+			                           */
+
+			uint8_t  bDescriptorSubtype; /**< Sub type value used to distinguish between audio class-specific descriptors. */
+
+			uint8_t  bNumEmbMIDIJack; /**< Total number of jacks inside this endpoint. */
+			uint8_t  bAssocJackID[1]; /**< IDs of each jack inside the endpoint. */
+		} ATTR_PACKED USB_MIDI_StdDescriptor_Jack_Endpoint_t;
+
+		/** \brief MIDI Class Driver Event Packet.
+		 *
+		 *  Type define for a USB MIDI event packet, used to encapsulate sent and received MIDI messages from a USB MIDI interface.
+		 *
+		 *  \note Regardless of CPU architecture, these values should be stored as little endian.
+		 */
+		typedef struct
+		{
+			uint8_t  Event; /**< MIDI event type, constructed with the \ref MIDI_EVENT() macro. */
+
+			uint8_t  Data1; /**< First byte of data in the MIDI event. */
+			uint8_t  Data2; /**< Second byte of data in the MIDI event. */
+			uint8_t  Data3; /**< Third byte of data in the MIDI event. */
+		} ATTR_PACKED MIDI_EventPacket_t;
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+