From 3bf7ce15d5b897724feb7f84f27fca2f8f5c4efe Mon Sep 17 00:00:00 2001
From: Dean Camera <dean@fourwalledcubicle.com>
Date: Tue, 10 Jul 2012 19:33:39 +0000
Subject: Fix up makefile .NOTPARALLEL heuristics so that linear building is
 only enforced if no object folder set and the "all" target is run. Rename
 library "ConfigDescriptor.c" file to "ConfigDescriptors.c" to ensure that
 object filenames are unique.

---
 Bootloaders/makefile                       |  10 +-
 BuildTests/makefile                        |   1 +
 Demos/Device/ClassDriver/makefile          |  10 +-
 Demos/Device/LowLevel/makefile             |  10 +-
 Demos/DualRole/ClassDriver/makefile        |  10 +-
 Demos/Host/ClassDriver/makefile            |  10 +-
 Demos/Host/LowLevel/makefile               |  10 +-
 LUFA/Build/lufa.sources.in                 |   2 +-
 LUFA/DoxygenPages/MigrationInformation.txt |   3 +
 LUFA/Drivers/USB/Core/ConfigDescriptor.c   | 146 ---------------
 LUFA/Drivers/USB/Core/ConfigDescriptor.h   | 286 -----------------------------
 LUFA/Drivers/USB/Core/ConfigDescriptors.c  | 146 +++++++++++++++
 LUFA/Drivers/USB/Core/ConfigDescriptors.h  | 286 +++++++++++++++++++++++++++++
 LUFA/Drivers/USB/USB.h                     |   4 +-
 Projects/makefile                          |  10 +-
 makefile                                   |   1 +
 16 files changed, 482 insertions(+), 463 deletions(-)
 delete mode 100644 LUFA/Drivers/USB/Core/ConfigDescriptor.c
 delete mode 100644 LUFA/Drivers/USB/Core/ConfigDescriptor.h
 create mode 100644 LUFA/Drivers/USB/Core/ConfigDescriptors.c
 create mode 100644 LUFA/Drivers/USB/Core/ConfigDescriptors.h

diff --git a/Bootloaders/makefile b/Bootloaders/makefile
index ba4f51259..1a4d3457e 100644
--- a/Bootloaders/makefile
+++ b/Bootloaders/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/BuildTests/makefile b/BuildTests/makefile
index caa22fb80..901dbadbb 100644
--- a/BuildTests/makefile
+++ b/BuildTests/makefile
@@ -11,6 +11,7 @@
 # not intended to be modified or compiled by non-developers.
 
 all:
+
 %:
 	@echo Executing \"make $@\" on all LUFA build tests.
 	@echo
diff --git a/Demos/Device/ClassDriver/makefile b/Demos/Device/ClassDriver/makefile
index 3a5615e05..797a483fa 100644
--- a/Demos/Device/ClassDriver/makefile
+++ b/Demos/Device/ClassDriver/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/Demos/Device/LowLevel/makefile b/Demos/Device/LowLevel/makefile
index 3a5615e05..797a483fa 100644
--- a/Demos/Device/LowLevel/makefile
+++ b/Demos/Device/LowLevel/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/Demos/DualRole/ClassDriver/makefile b/Demos/DualRole/ClassDriver/makefile
index 71fb805ef..b9538fe3b 100644
--- a/Demos/DualRole/ClassDriver/makefile
+++ b/Demos/DualRole/ClassDriver/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/Demos/Host/ClassDriver/makefile b/Demos/Host/ClassDriver/makefile
index a2b14c8a6..d057a1c69 100644
--- a/Demos/Host/ClassDriver/makefile
+++ b/Demos/Host/ClassDriver/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/Demos/Host/LowLevel/makefile b/Demos/Host/LowLevel/makefile
index a2b14c8a6..d057a1c69 100644
--- a/Demos/Host/LowLevel/makefile
+++ b/Demos/Host/LowLevel/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/LUFA/Build/lufa.sources.in b/LUFA/Build/lufa.sources.in
index 10e5c1d70..0e026c54e 100644
--- a/LUFA/Build/lufa.sources.in
+++ b/LUFA/Build/lufa.sources.in
@@ -75,7 +75,7 @@ LUFA_SRC_USB         := $(LUFA_ROOT_PATH)/Drivers/USB/Core/$(ARCH)/Device_$(ARCH
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/$(ARCH)/USBInterrupt_$(ARCH).c    \
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/$(ARCH)/EndpointStream_$(ARCH).c  \
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/$(ARCH)/PipeStream_$(ARCH).c      \
-                        $(LUFA_ROOT_PATH)/Drivers/USB/Core/ConfigDescriptor.c                \
+                        $(LUFA_ROOT_PATH)/Drivers/USB/Core/ConfigDescriptors.c               \
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/DeviceStandardReq.c               \
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/Events.c                          \
                         $(LUFA_ROOT_PATH)/Drivers/USB/Core/HostStandardReq.c                 \
diff --git a/LUFA/DoxygenPages/MigrationInformation.txt b/LUFA/DoxygenPages/MigrationInformation.txt
index f0fd9b210..544c94e9e 100644
--- a/LUFA/DoxygenPages/MigrationInformation.txt
+++ b/LUFA/DoxygenPages/MigrationInformation.txt
@@ -44,6 +44,9 @@
  *    - The MIDI class driver \ref MIDI_EventPacket_t event packet no longer contains seperate \c CableIndex and \c Command entries; these have been combined
  *      into a single \c Event element which can be contructed using the new macro \ref MIDI_EVENT(). Existing applications should use the new macro and structure
  *      element name.
+ *    - The library "LUFA/Drivers/USB/Core/ConfigDescriptor.c" source file has been renamed "LUFA/Drivers/USB/Core/ConfigDescriptors.c" as this was clashing with
+ *      files in some low level host mode demo applications, preventing parallel project builds. If you are referencing the project source files directly instead
+ *      of using the makefile module names, you will need to adjust your project makefile.
  *
  *  \section Sec_Migration120219 Migrating from 111009 to 120219
  *  <b>USB Core</b>
diff --git a/LUFA/Drivers/USB/Core/ConfigDescriptor.c b/LUFA/Drivers/USB/Core/ConfigDescriptor.c
deleted file mode 100644
index 5bdcdc663..000000000
--- a/LUFA/Drivers/USB/Core/ConfigDescriptor.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
-             LUFA Library
-     Copyright (C) Dean Camera, 2012.
-
-  dean [at] fourwalledcubicle [dot] com
-           www.lufa-lib.org
-*/
-
-/*
-  Copyright 2012  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 disclaim 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.
-*/
-
-#define  __INCLUDE_FROM_USB_DRIVER
-#include "ConfigDescriptor.h"
-
-#if defined(USB_CAN_BE_HOST)
-uint8_t USB_Host_GetDeviceConfigDescriptor(const uint8_t ConfigNumber,
-                                           uint16_t* const ConfigSizePtr,
-                                           void* const BufferPtr,
-                                           const uint16_t BufferSize)
-{
-	uint8_t ErrorCode;
-	uint8_t ConfigHeader[sizeof(USB_Descriptor_Configuration_Header_t)];
-
-	USB_ControlRequest = (USB_Request_Header_t)
-		{
-			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
-			.bRequest      = REQ_GetDescriptor,
-			.wValue        = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
-			.wIndex        = 0,
-			.wLength       = sizeof(USB_Descriptor_Configuration_Header_t),
-		};
-
-	Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
-	if ((ErrorCode = USB_Host_SendControlRequest(ConfigHeader)) != HOST_SENDCONTROL_Successful)
-	  return ErrorCode;
-
-	*ConfigSizePtr = le16_to_cpu(DESCRIPTOR_PCAST(ConfigHeader, USB_Descriptor_Configuration_Header_t)->TotalConfigurationSize);
-
-	if (*ConfigSizePtr > BufferSize)
-	  return HOST_GETCONFIG_BuffOverflow;
-
-	USB_ControlRequest.wLength = *ConfigSizePtr;
-
-	if ((ErrorCode = USB_Host_SendControlRequest(BufferPtr)) != HOST_SENDCONTROL_Successful)
-	  return ErrorCode;
-
-	if (DESCRIPTOR_TYPE(BufferPtr) != DTYPE_Configuration)
-	  return HOST_GETCONFIG_InvalidData;
-
-	return HOST_GETCONFIG_Successful;
-}
-#endif
-
-void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
-                                 void** const CurrConfigLoc,
-                                 const uint8_t Type)
-{
-	while (*BytesRem)
-	{
-		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
-
-		if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
-		  return;
-	}
-}
-
-void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
-                                       void** const CurrConfigLoc,
-                                       const uint8_t Type,
-                                       const uint8_t BeforeType)
-{
-	while (*BytesRem)
-	{
-		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
-
-		if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
-		{
-			return;
-		}
-		else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
-		{
-			*BytesRem = 0;
-			return;
-		}
-	}
-}
-
-void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
-                                      void** const CurrConfigLoc,
-                                      const uint8_t Type,
-                                      const uint8_t AfterType)
-{
-	USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
-
-	if (*BytesRem)
-	  USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
-}
-
-uint8_t USB_GetNextDescriptorComp(uint16_t* const BytesRem,
-                                  void** const CurrConfigLoc,
-                                  ConfigComparatorPtr_t const ComparatorRoutine)
-{
-	uint8_t ErrorCode;
-
-	while (*BytesRem)
-	{
-		uint8_t* PrevDescLoc  = *CurrConfigLoc;
-		uint16_t PrevBytesRem = *BytesRem;
-
-		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
-
-		if ((ErrorCode = ComparatorRoutine(*CurrConfigLoc)) != DESCRIPTOR_SEARCH_NotFound)
-		{
-			if (ErrorCode == DESCRIPTOR_SEARCH_Fail)
-			{
-				*CurrConfigLoc = PrevDescLoc;
-				*BytesRem      = PrevBytesRem;
-			}
-
-			return ErrorCode;
-		}
-	}
-
-	return DESCRIPTOR_SEARCH_COMP_EndOfDescriptor;
-}
-
diff --git a/LUFA/Drivers/USB/Core/ConfigDescriptor.h b/LUFA/Drivers/USB/Core/ConfigDescriptor.h
deleted file mode 100644
index 97fb39b57..000000000
--- a/LUFA/Drivers/USB/Core/ConfigDescriptor.h
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
-             LUFA Library
-     Copyright (C) Dean Camera, 2012.
-
-  dean [at] fourwalledcubicle [dot] com
-           www.lufa-lib.org
-*/
-
-/*
-  Copyright 2012  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 disclaim 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 USB Configuration Descriptor definitions.
- *  \copydetails Group_ConfigDescriptorParser
- *
- *  \note This file should not be included directly. It is automatically included as needed by the USB driver
- *        dispatch header located in LUFA/Drivers/USB/USB.h.
- */
-
-/** \ingroup Group_StdDescriptors
- *  \defgroup Group_ConfigDescriptorParser Configuration Descriptor Parser
- *  \brief USB Configuration Descriptor definitions.
- *
- *  This section of the library gives a friendly API which can be used in host applications to easily
- *  parse an attached device's configuration descriptor so that endpoint, interface and other descriptor
- *  data can be extracted and used as needed.
- *
- *  @{
- */
-
-#ifndef __CONFIGDESCRIPTOR_H__
-#define __CONFIGDESCRIPTOR_H__
-
-	/* Includes: */
-		#include "../../../Common/Common.h"
-		#include "USBMode.h"
-		#include "HostStandardReq.h"
-		#include "StdDescriptors.h"
-
-	/* Enable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			extern "C" {
-		#endif
-
-	/* Preprocessor Checks: */
-		#if !defined(__INCLUDE_FROM_USB_DRIVER)
-			#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
-		#endif
-
-	/* Public Interface - May be used in end-application: */
-		/* Macros: */
-			/** Casts a pointer to a descriptor inside the configuration descriptor into a pointer to the given
-			 *  descriptor type.
-			 *
-			 *  Usage Example:
-			 *  \code
-			 *  uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
-			 *  USB_Descriptor_Configuration_Header_t* ConfigHeaderPtr = DESCRIPTOR_PCAST(CurrDescriptor,
-			 *                                                           USB_Descriptor_Configuration_Header_t);
-			 *  
-			 *  // Can now access elements of the configuration header struct using the -> indirection operator
-			 *  \endcode
-			 */
-			#define DESCRIPTOR_PCAST(DescriptorPtr, Type) ((Type*)(DescriptorPtr))
-
-			/** Casts a pointer to a descriptor inside the configuration descriptor into the given descriptor
-			 *  type (as an actual struct instance rather than a pointer to a struct).
-			 *
-			 *  Usage Example:
-			 *  \code
-			 *  uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
-			 *  USB_Descriptor_Configuration_Header_t ConfigHeader = DESCRIPTOR_CAST(CurrDescriptor,
-			 *                                                       USB_Descriptor_Configuration_Header_t);
-			 *  
-			 *  // Can now access elements of the configuration header struct using the . operator
-			 *  \endcode
-			 */
-			#define DESCRIPTOR_CAST(DescriptorPtr, Type)  (*DESCRIPTOR_PCAST(DescriptorPtr, Type))
-
-			/** Returns the descriptor's type, expressed as the 8-bit type value in the header of the descriptor.
-			 *  This value's meaning depends on the descriptor's placement in the descriptor, but standard type
-			 *  values can be accessed in the \ref USB_DescriptorTypes_t enum.
-			 */
-			#define DESCRIPTOR_TYPE(DescriptorPtr)    DESCRIPTOR_PCAST(DescriptorPtr, USB_Descriptor_Header_t)->Type
-
-			/** Returns the descriptor's size, expressed as the 8-bit value indicating the number of bytes. */
-			#define DESCRIPTOR_SIZE(DescriptorPtr)    DESCRIPTOR_PCAST(DescriptorPtr, USB_Descriptor_Header_t)->Size
-
-		/* Type Defines: */
-			/** Type define for a Configuration Descriptor comparator function (function taking a pointer to an array
-			 *  of type void, returning a uint8_t value).
-			 *
-			 *  \see \ref USB_GetNextDescriptorComp function for more details.
-			 */
-			typedef uint8_t (* ConfigComparatorPtr_t)(void*);
-
-		/* Enums: */
-			/** Enum for the possible return codes of the \ref USB_Host_GetDeviceConfigDescriptor() function. */
-			enum USB_Host_GetConfigDescriptor_ErrorCodes_t
-			{
-				HOST_GETCONFIG_Successful       = 0, /**< No error occurred while retrieving the configuration descriptor. */
-				HOST_GETCONFIG_DeviceDisconnect = 1, /**< The attached device was disconnected while retrieving the configuration
-				                                        * descriptor.
-				                                        */
-				HOST_GETCONFIG_PipeError        = 2, /**< An error occurred in the pipe while sending the request. */
-				HOST_GETCONFIG_SetupStalled     = 3, /**< The attached device stalled the request to retrieve the configuration
-				                                        * descriptor.
-				                                        */
-				HOST_GETCONFIG_SoftwareTimeOut  = 4, /**< The request or data transfer timed out. */
-				HOST_GETCONFIG_BuffOverflow     = 5, /**< The device's configuration descriptor is too large to fit into the allocated
-				                                        * buffer.
-				                                        */
-				HOST_GETCONFIG_InvalidData      = 6, /**< The device returned invalid configuration descriptor data. */
-			};
-
-			/** Enum for return values of a descriptor comparator function. */
-			enum DSearch_Return_ErrorCodes_t
-			{
-				DESCRIPTOR_SEARCH_Found                = 0, /**< Current descriptor matches comparator criteria. */
-				DESCRIPTOR_SEARCH_Fail                 = 1, /**< No further descriptor could possibly match criteria, fail the search. */
-				DESCRIPTOR_SEARCH_NotFound             = 2, /**< Current descriptor does not match comparator criteria. */
-			};
-
-			/** Enum for return values of \ref USB_GetNextDescriptorComp(). */
-			enum DSearch_Comp_Return_ErrorCodes_t
-			{
-				DESCRIPTOR_SEARCH_COMP_Found           = 0, /**< Configuration descriptor now points to descriptor which matches
-				                                             *   search criteria of the given comparator function. */
-				DESCRIPTOR_SEARCH_COMP_Fail            = 1, /**< Comparator function returned \ref DESCRIPTOR_SEARCH_Fail. */
-				DESCRIPTOR_SEARCH_COMP_EndOfDescriptor = 2, /**< End of configuration descriptor reached before match found. */
-			};
-
-		/* Function Prototypes: */
-			/** Retrieves the configuration descriptor data from an attached device via a standard request into a buffer,
-			 *  including validity and size checking to prevent a buffer overflow.
-			 *
-			 *  \param[in]     ConfigNumber   Device configuration descriptor number to fetch from the device (usually set to 1 for
-			 *                                single configuration devices).
-			 *  \param[in,out] ConfigSizePtr  Pointer to a location for storing the retrieved configuration descriptor size.
-			 *  \param[out]    BufferPtr      Pointer to the buffer for storing the configuration descriptor data.
-			 *  \param[out]    BufferSize     Size of the allocated buffer where the configuration descriptor is to be stored.
-			 *
-			 *  \return A value from the \ref USB_Host_GetConfigDescriptor_ErrorCodes_t enum.
-			 */
-			uint8_t USB_Host_GetDeviceConfigDescriptor(const uint8_t ConfigNumber,
-			                                           uint16_t* const ConfigSizePtr,
-			                                           void* const BufferPtr,
-			                                           const uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(2) ATTR_NON_NULL_PTR_ARG(3);
-
-			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value.
-			 *  The bytes remaining value is automatically decremented.
-			 *
-			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
-			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
-			 * \param[in]     Type           Descriptor type value to search for.
-			 */
-			void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
-			                                 void** const CurrConfigLoc,
-			                                 const uint8_t Type)
-			                                 ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
-			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value,
-			 *  which must come before a descriptor of the second given type value. If the BeforeType type
-			 *  descriptor is reached first, the number of bytes remaining to process is set to zero and the
-			 *  function exits. The bytes remaining value is automatically decremented.
-			 *
-			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
-			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
-			 * \param[in]     Type           Descriptor type value to search for.
-			 * \param[in]     BeforeType     Descriptor type value which must not be reached before the given Type descriptor.
-			 */
-			void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
-			                                       void** const CurrConfigLoc,
-			                                       const uint8_t Type,
-			                                       const uint8_t BeforeType)
-			                                       ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
-			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value,
-			 *  which must come after a descriptor of the second given type value. The bytes remaining value is
-			 *  automatically decremented.
-			 *
-			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
-			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
-			 * \param[in]     Type           Descriptor type value to search for.
-			 * \param[in]     AfterType      Descriptor type value which must be reached before the given Type descriptor.
-			 */
-			void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
-			                                      void** const CurrConfigLoc,
-			                                      const uint8_t Type,
-			                                      const uint8_t AfterType)
-			                                      ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-
-			/** Searches for the next descriptor in the given configuration descriptor using a pre-made comparator
-			 *  function. The routine updates the position and remaining configuration descriptor bytes values
-			 *  automatically. If a comparator routine fails a search, the descriptor pointer is retreated back
-			 *  so that the next descriptor search invocation will start from the descriptor which first caused the
-			 *  original search to fail. This behavior allows for one comparator to be used immediately after another
-			 *  has failed, starting the second search from the descriptor which failed the first.
-			 *
-			 *  Comparator functions should be standard functions which accept a pointer to the header of the current
-			 *  descriptor inside the configuration descriptor which is being compared, and should return a value from
-			 *  the \ref DSearch_Return_ErrorCodes_t enum as a uint8_t value.
-			 *
-			 *  \note This function is available in USB Host mode only.
-			 *
-			 *  \param[in,out] BytesRem           Pointer to an int storing the remaining bytes in the configuration descriptor.
-			 *  \param[in,out] CurrConfigLoc      Pointer to the current position in the configuration descriptor.
-			 *  \param[in]     ComparatorRoutine  Name of the comparator search function to use on the configuration descriptor.
-			 *
-			 *  \return Value of one of the members of the \ref DSearch_Comp_Return_ErrorCodes_t enum.
-			 *
-			 *  Usage Example:
-			 *  \code
-			 *  uint8_t EndpointSearcher(void* CurrentDescriptor); // Comparator Prototype
-			 *  
-			 *  uint8_t EndpointSearcher(void* CurrentDescriptor)
-			 *  {
-			 *     if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
-			 *         return DESCRIPTOR_SEARCH_Found;
-			 *     else
-			 *         return DESCRIPTOR_SEARCH_NotFound;
-			 *  }
-			 *  
-			 *  //...
-			 *  
-			 *  // After retrieving configuration descriptor:
-			 *  if (USB_Host_GetNextDescriptorComp(&BytesRemaining, &CurrentConfigLoc, EndpointSearcher) ==
-			 *      Descriptor_Search_Comp_Found)
-			 *  {
-			 *      // Do something with the endpoint descriptor
-			 *  }
-			 *  \endcode
-			 */
-			uint8_t USB_GetNextDescriptorComp(uint16_t* const BytesRem,
-			                                  void** const CurrConfigLoc,
-			                                  ConfigComparatorPtr_t const ComparatorRoutine);
-
-		/* Inline Functions: */
-			/** Skips over the current sub-descriptor inside the configuration descriptor, so that the pointer then
-			    points to the next sub-descriptor. The bytes remaining value is automatically decremented.
-			 *
-			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
-			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
-			 */
-			static inline void USB_GetNextDescriptor(uint16_t* const BytesRem,
-			                                         void** CurrConfigLoc) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
-			static inline void USB_GetNextDescriptor(uint16_t* const BytesRem,
-			                                         void** CurrConfigLoc)
-			{
-				uint16_t CurrDescriptorSize = DESCRIPTOR_CAST(*CurrConfigLoc, USB_Descriptor_Header_t).Size;
-
-				if (*BytesRem < CurrDescriptorSize)
-				  CurrDescriptorSize = *BytesRem;
-
-				*CurrConfigLoc  = (void*)((uintptr_t)*CurrConfigLoc + CurrDescriptorSize);
-				*BytesRem      -= CurrDescriptorSize;
-			}
-
-	/* Disable C linkage for C++ Compilers: */
-		#if defined(__cplusplus)
-			}
-		#endif
-
-#endif
-
-/** @} */
-
diff --git a/LUFA/Drivers/USB/Core/ConfigDescriptors.c b/LUFA/Drivers/USB/Core/ConfigDescriptors.c
new file mode 100644
index 000000000..47332d854
--- /dev/null
+++ b/LUFA/Drivers/USB/Core/ConfigDescriptors.c
@@ -0,0 +1,146 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2012  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 disclaim 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.
+*/
+
+#define  __INCLUDE_FROM_USB_DRIVER
+#include "ConfigDescriptors.h"
+
+#if defined(USB_CAN_BE_HOST)
+uint8_t USB_Host_GetDeviceConfigDescriptor(const uint8_t ConfigNumber,
+                                           uint16_t* const ConfigSizePtr,
+                                           void* const BufferPtr,
+                                           const uint16_t BufferSize)
+{
+	uint8_t ErrorCode;
+	uint8_t ConfigHeader[sizeof(USB_Descriptor_Configuration_Header_t)];
+
+	USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
+			.bRequest      = REQ_GetDescriptor,
+			.wValue        = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
+			.wIndex        = 0,
+			.wLength       = sizeof(USB_Descriptor_Configuration_Header_t),
+		};
+
+	Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+	if ((ErrorCode = USB_Host_SendControlRequest(ConfigHeader)) != HOST_SENDCONTROL_Successful)
+	  return ErrorCode;
+
+	*ConfigSizePtr = le16_to_cpu(DESCRIPTOR_PCAST(ConfigHeader, USB_Descriptor_Configuration_Header_t)->TotalConfigurationSize);
+
+	if (*ConfigSizePtr > BufferSize)
+	  return HOST_GETCONFIG_BuffOverflow;
+
+	USB_ControlRequest.wLength = *ConfigSizePtr;
+
+	if ((ErrorCode = USB_Host_SendControlRequest(BufferPtr)) != HOST_SENDCONTROL_Successful)
+	  return ErrorCode;
+
+	if (DESCRIPTOR_TYPE(BufferPtr) != DTYPE_Configuration)
+	  return HOST_GETCONFIG_InvalidData;
+
+	return HOST_GETCONFIG_Successful;
+}
+#endif
+
+void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
+                                 void** const CurrConfigLoc,
+                                 const uint8_t Type)
+{
+	while (*BytesRem)
+	{
+		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+		if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+		  return;
+	}
+}
+
+void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
+                                       void** const CurrConfigLoc,
+                                       const uint8_t Type,
+                                       const uint8_t BeforeType)
+{
+	while (*BytesRem)
+	{
+		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+		if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+		{
+			return;
+		}
+		else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
+		{
+			*BytesRem = 0;
+			return;
+		}
+	}
+}
+
+void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
+                                      void** const CurrConfigLoc,
+                                      const uint8_t Type,
+                                      const uint8_t AfterType)
+{
+	USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
+
+	if (*BytesRem)
+	  USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
+}
+
+uint8_t USB_GetNextDescriptorComp(uint16_t* const BytesRem,
+                                  void** const CurrConfigLoc,
+                                  ConfigComparatorPtr_t const ComparatorRoutine)
+{
+	uint8_t ErrorCode;
+
+	while (*BytesRem)
+	{
+		uint8_t* PrevDescLoc  = *CurrConfigLoc;
+		uint16_t PrevBytesRem = *BytesRem;
+
+		USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+		if ((ErrorCode = ComparatorRoutine(*CurrConfigLoc)) != DESCRIPTOR_SEARCH_NotFound)
+		{
+			if (ErrorCode == DESCRIPTOR_SEARCH_Fail)
+			{
+				*CurrConfigLoc = PrevDescLoc;
+				*BytesRem      = PrevBytesRem;
+			}
+
+			return ErrorCode;
+		}
+	}
+
+	return DESCRIPTOR_SEARCH_COMP_EndOfDescriptor;
+}
+
diff --git a/LUFA/Drivers/USB/Core/ConfigDescriptors.h b/LUFA/Drivers/USB/Core/ConfigDescriptors.h
new file mode 100644
index 000000000..97fb39b57
--- /dev/null
+++ b/LUFA/Drivers/USB/Core/ConfigDescriptors.h
@@ -0,0 +1,286 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2012  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 disclaim 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 USB Configuration Descriptor definitions.
+ *  \copydetails Group_ConfigDescriptorParser
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the USB driver
+ *        dispatch header located in LUFA/Drivers/USB/USB.h.
+ */
+
+/** \ingroup Group_StdDescriptors
+ *  \defgroup Group_ConfigDescriptorParser Configuration Descriptor Parser
+ *  \brief USB Configuration Descriptor definitions.
+ *
+ *  This section of the library gives a friendly API which can be used in host applications to easily
+ *  parse an attached device's configuration descriptor so that endpoint, interface and other descriptor
+ *  data can be extracted and used as needed.
+ *
+ *  @{
+ */
+
+#ifndef __CONFIGDESCRIPTOR_H__
+#define __CONFIGDESCRIPTOR_H__
+
+	/* Includes: */
+		#include "../../../Common/Common.h"
+		#include "USBMode.h"
+		#include "HostStandardReq.h"
+		#include "StdDescriptors.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_USB_DRIVER)
+			#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Casts a pointer to a descriptor inside the configuration descriptor into a pointer to the given
+			 *  descriptor type.
+			 *
+			 *  Usage Example:
+			 *  \code
+			 *  uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
+			 *  USB_Descriptor_Configuration_Header_t* ConfigHeaderPtr = DESCRIPTOR_PCAST(CurrDescriptor,
+			 *                                                           USB_Descriptor_Configuration_Header_t);
+			 *  
+			 *  // Can now access elements of the configuration header struct using the -> indirection operator
+			 *  \endcode
+			 */
+			#define DESCRIPTOR_PCAST(DescriptorPtr, Type) ((Type*)(DescriptorPtr))
+
+			/** Casts a pointer to a descriptor inside the configuration descriptor into the given descriptor
+			 *  type (as an actual struct instance rather than a pointer to a struct).
+			 *
+			 *  Usage Example:
+			 *  \code
+			 *  uint8_t* CurrDescriptor = &ConfigDescriptor[0]; // Pointing to the configuration header
+			 *  USB_Descriptor_Configuration_Header_t ConfigHeader = DESCRIPTOR_CAST(CurrDescriptor,
+			 *                                                       USB_Descriptor_Configuration_Header_t);
+			 *  
+			 *  // Can now access elements of the configuration header struct using the . operator
+			 *  \endcode
+			 */
+			#define DESCRIPTOR_CAST(DescriptorPtr, Type)  (*DESCRIPTOR_PCAST(DescriptorPtr, Type))
+
+			/** Returns the descriptor's type, expressed as the 8-bit type value in the header of the descriptor.
+			 *  This value's meaning depends on the descriptor's placement in the descriptor, but standard type
+			 *  values can be accessed in the \ref USB_DescriptorTypes_t enum.
+			 */
+			#define DESCRIPTOR_TYPE(DescriptorPtr)    DESCRIPTOR_PCAST(DescriptorPtr, USB_Descriptor_Header_t)->Type
+
+			/** Returns the descriptor's size, expressed as the 8-bit value indicating the number of bytes. */
+			#define DESCRIPTOR_SIZE(DescriptorPtr)    DESCRIPTOR_PCAST(DescriptorPtr, USB_Descriptor_Header_t)->Size
+
+		/* Type Defines: */
+			/** Type define for a Configuration Descriptor comparator function (function taking a pointer to an array
+			 *  of type void, returning a uint8_t value).
+			 *
+			 *  \see \ref USB_GetNextDescriptorComp function for more details.
+			 */
+			typedef uint8_t (* ConfigComparatorPtr_t)(void*);
+
+		/* Enums: */
+			/** Enum for the possible return codes of the \ref USB_Host_GetDeviceConfigDescriptor() function. */
+			enum USB_Host_GetConfigDescriptor_ErrorCodes_t
+			{
+				HOST_GETCONFIG_Successful       = 0, /**< No error occurred while retrieving the configuration descriptor. */
+				HOST_GETCONFIG_DeviceDisconnect = 1, /**< The attached device was disconnected while retrieving the configuration
+				                                        * descriptor.
+				                                        */
+				HOST_GETCONFIG_PipeError        = 2, /**< An error occurred in the pipe while sending the request. */
+				HOST_GETCONFIG_SetupStalled     = 3, /**< The attached device stalled the request to retrieve the configuration
+				                                        * descriptor.
+				                                        */
+				HOST_GETCONFIG_SoftwareTimeOut  = 4, /**< The request or data transfer timed out. */
+				HOST_GETCONFIG_BuffOverflow     = 5, /**< The device's configuration descriptor is too large to fit into the allocated
+				                                        * buffer.
+				                                        */
+				HOST_GETCONFIG_InvalidData      = 6, /**< The device returned invalid configuration descriptor data. */
+			};
+
+			/** Enum for return values of a descriptor comparator function. */
+			enum DSearch_Return_ErrorCodes_t
+			{
+				DESCRIPTOR_SEARCH_Found                = 0, /**< Current descriptor matches comparator criteria. */
+				DESCRIPTOR_SEARCH_Fail                 = 1, /**< No further descriptor could possibly match criteria, fail the search. */
+				DESCRIPTOR_SEARCH_NotFound             = 2, /**< Current descriptor does not match comparator criteria. */
+			};
+
+			/** Enum for return values of \ref USB_GetNextDescriptorComp(). */
+			enum DSearch_Comp_Return_ErrorCodes_t
+			{
+				DESCRIPTOR_SEARCH_COMP_Found           = 0, /**< Configuration descriptor now points to descriptor which matches
+				                                             *   search criteria of the given comparator function. */
+				DESCRIPTOR_SEARCH_COMP_Fail            = 1, /**< Comparator function returned \ref DESCRIPTOR_SEARCH_Fail. */
+				DESCRIPTOR_SEARCH_COMP_EndOfDescriptor = 2, /**< End of configuration descriptor reached before match found. */
+			};
+
+		/* Function Prototypes: */
+			/** Retrieves the configuration descriptor data from an attached device via a standard request into a buffer,
+			 *  including validity and size checking to prevent a buffer overflow.
+			 *
+			 *  \param[in]     ConfigNumber   Device configuration descriptor number to fetch from the device (usually set to 1 for
+			 *                                single configuration devices).
+			 *  \param[in,out] ConfigSizePtr  Pointer to a location for storing the retrieved configuration descriptor size.
+			 *  \param[out]    BufferPtr      Pointer to the buffer for storing the configuration descriptor data.
+			 *  \param[out]    BufferSize     Size of the allocated buffer where the configuration descriptor is to be stored.
+			 *
+			 *  \return A value from the \ref USB_Host_GetConfigDescriptor_ErrorCodes_t enum.
+			 */
+			uint8_t USB_Host_GetDeviceConfigDescriptor(const uint8_t ConfigNumber,
+			                                           uint16_t* const ConfigSizePtr,
+			                                           void* const BufferPtr,
+			                                           const uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(2) ATTR_NON_NULL_PTR_ARG(3);
+
+			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value.
+			 *  The bytes remaining value is automatically decremented.
+			 *
+			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
+			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
+			 * \param[in]     Type           Descriptor type value to search for.
+			 */
+			void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
+			                                 void** const CurrConfigLoc,
+			                                 const uint8_t Type)
+			                                 ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value,
+			 *  which must come before a descriptor of the second given type value. If the BeforeType type
+			 *  descriptor is reached first, the number of bytes remaining to process is set to zero and the
+			 *  function exits. The bytes remaining value is automatically decremented.
+			 *
+			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
+			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
+			 * \param[in]     Type           Descriptor type value to search for.
+			 * \param[in]     BeforeType     Descriptor type value which must not be reached before the given Type descriptor.
+			 */
+			void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
+			                                       void** const CurrConfigLoc,
+			                                       const uint8_t Type,
+			                                       const uint8_t BeforeType)
+			                                       ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+			/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value,
+			 *  which must come after a descriptor of the second given type value. The bytes remaining value is
+			 *  automatically decremented.
+			 *
+			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
+			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
+			 * \param[in]     Type           Descriptor type value to search for.
+			 * \param[in]     AfterType      Descriptor type value which must be reached before the given Type descriptor.
+			 */
+			void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
+			                                      void** const CurrConfigLoc,
+			                                      const uint8_t Type,
+			                                      const uint8_t AfterType)
+			                                      ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+			/** Searches for the next descriptor in the given configuration descriptor using a pre-made comparator
+			 *  function. The routine updates the position and remaining configuration descriptor bytes values
+			 *  automatically. If a comparator routine fails a search, the descriptor pointer is retreated back
+			 *  so that the next descriptor search invocation will start from the descriptor which first caused the
+			 *  original search to fail. This behavior allows for one comparator to be used immediately after another
+			 *  has failed, starting the second search from the descriptor which failed the first.
+			 *
+			 *  Comparator functions should be standard functions which accept a pointer to the header of the current
+			 *  descriptor inside the configuration descriptor which is being compared, and should return a value from
+			 *  the \ref DSearch_Return_ErrorCodes_t enum as a uint8_t value.
+			 *
+			 *  \note This function is available in USB Host mode only.
+			 *
+			 *  \param[in,out] BytesRem           Pointer to an int storing the remaining bytes in the configuration descriptor.
+			 *  \param[in,out] CurrConfigLoc      Pointer to the current position in the configuration descriptor.
+			 *  \param[in]     ComparatorRoutine  Name of the comparator search function to use on the configuration descriptor.
+			 *
+			 *  \return Value of one of the members of the \ref DSearch_Comp_Return_ErrorCodes_t enum.
+			 *
+			 *  Usage Example:
+			 *  \code
+			 *  uint8_t EndpointSearcher(void* CurrentDescriptor); // Comparator Prototype
+			 *  
+			 *  uint8_t EndpointSearcher(void* CurrentDescriptor)
+			 *  {
+			 *     if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
+			 *         return DESCRIPTOR_SEARCH_Found;
+			 *     else
+			 *         return DESCRIPTOR_SEARCH_NotFound;
+			 *  }
+			 *  
+			 *  //...
+			 *  
+			 *  // After retrieving configuration descriptor:
+			 *  if (USB_Host_GetNextDescriptorComp(&BytesRemaining, &CurrentConfigLoc, EndpointSearcher) ==
+			 *      Descriptor_Search_Comp_Found)
+			 *  {
+			 *      // Do something with the endpoint descriptor
+			 *  }
+			 *  \endcode
+			 */
+			uint8_t USB_GetNextDescriptorComp(uint16_t* const BytesRem,
+			                                  void** const CurrConfigLoc,
+			                                  ConfigComparatorPtr_t const ComparatorRoutine);
+
+		/* Inline Functions: */
+			/** Skips over the current sub-descriptor inside the configuration descriptor, so that the pointer then
+			    points to the next sub-descriptor. The bytes remaining value is automatically decremented.
+			 *
+			 * \param[in,out] BytesRem       Pointer to the number of bytes remaining of the configuration descriptor.
+			 * \param[in,out] CurrConfigLoc  Pointer to the current descriptor inside the configuration descriptor.
+			 */
+			static inline void USB_GetNextDescriptor(uint16_t* const BytesRem,
+			                                         void** CurrConfigLoc) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+			static inline void USB_GetNextDescriptor(uint16_t* const BytesRem,
+			                                         void** CurrConfigLoc)
+			{
+				uint16_t CurrDescriptorSize = DESCRIPTOR_CAST(*CurrConfigLoc, USB_Descriptor_Header_t).Size;
+
+				if (*BytesRem < CurrDescriptorSize)
+				  CurrDescriptorSize = *BytesRem;
+
+				*CurrConfigLoc  = (void*)((uintptr_t)*CurrConfigLoc + CurrDescriptorSize);
+				*BytesRem      -= CurrDescriptorSize;
+			}
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/LUFA/Drivers/USB/USB.h b/LUFA/Drivers/USB/USB.h
index 626635c8d..512f7029f 100644
--- a/LUFA/Drivers/USB/USB.h
+++ b/LUFA/Drivers/USB/USB.h
@@ -41,7 +41,7 @@
  *
  *  \section Sec_Dependencies Module Source Dependencies
  *  The following files must be built with any user project that uses this module:
- *    - LUFA/Drivers/USB/Core/ConfigDescriptor.c <i>(Makefile source module name: LUFA_SRC_USB)</i>
+ *    - LUFA/Drivers/USB/Core/ConfigDescriptors.c <i>(Makefile source module name: LUFA_SRC_USB)</i>
  *    - LUFA/Drivers/USB/Core/DeviceStandardReq.c <i>(Makefile source module name: LUFA_SRC_USB)</i>
  *    - LUFA/Drivers/USB/Core/Events.c <i>(Makefile source module name: LUFA_SRC_USB)</i>
  *    - LUFA/Drivers/USB/Core/HostStandardReq.c <i>(Makefile source module name: LUFA_SRC_USB)</i>
@@ -382,7 +382,7 @@
 		#include "Core/USBTask.h"
 		#include "Core/Events.h"
 		#include "Core/StdDescriptors.h"
-		#include "Core/ConfigDescriptor.h"
+		#include "Core/ConfigDescriptors.h"
 		#include "Core/USBController.h"
 		#include "Core/USBInterrupt.h"
 
diff --git a/Projects/makefile b/Projects/makefile
index ec8e65b8b..f4b411145 100644
--- a/Projects/makefile
+++ b/Projects/makefile
@@ -22,16 +22,18 @@ ifeq ($(MAKELEVEL), 10)
    $(error EMERGENCY ABORT: INFINITE RECURSION DETECTED)
 endif
 
-# If building without a per-project object directory, we can't build in parallel
+# Need to special-case building without a per-project object directory
 ifeq ($(OBJDIR),)
-   .NOTPARALLEL:
-
-   # Ensure projects are pre-cleaned if the target is the default or "all"
+   # If no target specified, force "clean all" and disallow parallel build   
    ifeq ($(MAKECMDGOALS),)
       MAKECMDGOALS := clean all
+      .NOTPARALLEL:
    endif
+
+   # If one of the targets is to build, force "clean" beforehand and disallow parallel build   
    ifneq ($(findstring all, $(MAKECMDGOALS)),)
       MAKECMDGOALS := clean $(MAKECMDGOALS)
+      .NOTPARALLEL:
    endif
 endif
 
diff --git a/makefile b/makefile
index 8005f442a..a134dc0ab 100644
--- a/makefile
+++ b/makefile
@@ -14,6 +14,7 @@
 # "make help" for additional target build information within a specific project.
 
 all:
+
 %:
 	@echo Executing \"make $@\" on all LUFA library elements.
 	@echo
-- 
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