Added new Pipe_IsFrozen() macro to determine if the currently selected pipe is frozen.

Added new USB_GetHIDReportSize() function to the HID report parser to retrieve the size of a given report by its ID.

More additions to the unfinished HID Host Class Driver.

Bootloaders/CDC/BootloaderCDC.c

@@ -524,7 +524,7 @@ void CDC_Task(void)
 		else if (Command == 'D')
 		{
 			/* Read the byte from the endpoint and write it to the EEPROM */
-			eeprom_write_byte((uint8_t*)(uint16_t)(CurrAddress >> 1), FetchNextCommandByte());
+			eeprom_write_byte((uint8_t*)((uint16_t)(CurrAddress >> 1)), FetchNextCommandByte());
 			
 			/* Increment the address after use */			
 			CurrAddress += 2;
@@ -535,7 +535,7 @@ void CDC_Task(void)
 		else if (Command == 'd')
 		{
 			/* Read the EEPROM byte and write it to the endpoint */
-			WriteNextResponseByte(eeprom_read_byte((uint8_t*)(uint16_t)(CurrAddress >> 1)));
+			WriteNextResponseByte(eeprom_read_byte((uint8_t*)((uint16_t)(CurrAddress >> 1))));
 
 			/* Increment the address after use */
 			CurrAddress += 2;

Demos/Device/ClassDriver/GenericHID/Descriptors.c

@@ -123,7 +123,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x00,
-			.Protocol               = 0x00,
+			.Protocol               = HID_NON_BOOT_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},

Demos/Device/ClassDriver/Joystick/Descriptors.c

@@ -133,7 +133,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x00,
-			.Protocol               = 0x00,
+			.Protocol               = HID_NON_BOOT_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},

Demos/Device/ClassDriver/Keyboard/Descriptors.c

@@ -140,7 +140,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x01,
-			.Protocol               = 0x01,
+			.Protocol               = HID_BOOT_KEYBOARD_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},

Demos/Device/ClassDriver/KeyboardMouse/Descriptors.c

@@ -173,7 +173,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x01,
-			.Protocol               = 0x01,
+			.Protocol               = HID_BOOT_KEYBOARD_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},
@@ -210,7 +210,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x01,
-			.Protocol               = 0x02,
+			.Protocol               = HID_BOOT_MOUSE_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},

Demos/Device/ClassDriver/Mouse/Descriptors.c

@@ -133,7 +133,7 @@ USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
 				
 			.Class                  = 0x03,
 			.SubClass               = 0x01,
-			.Protocol               = 0x02,
+			.Protocol               = HID_BOOT_MOUSE_PROTOCOL,
 				
 			.InterfaceStrIndex      = NO_DESCRIPTOR
 		},

Demos/Host/ClassDriver/MouseHost/MouseHost.c

@@ -47,7 +47,7 @@ USB_ClassInfo_HID_Host_t Mouse_HID_Interface =
 				.DataINPipeNumber       = 1,
 				.DataOUTPipeNumber      = 2,
 				
-				.HIDInterfaceProtocol   = 0x02,
+				.HIDInterfaceProtocol   = HID_BOOT_MOUSE_PROTOCOL,
 			},
 	};
 
@@ -110,7 +110,38 @@ int main(void)
 				printf("Mouse Enumerated.\r\n");
 				USB_HostState = HOST_STATE_Configured;
 				break;
-			case HOST_STATE_Configured:			
+			case HOST_STATE_Configured:
+				if (HID_Host_IsReportReceived(&Mouse_HID_Interface))
+				{
+					USB_MouseReport_Data_t MouseReport;
+					uint8_t ReportID = 0;
+					uint8_t LEDMask = LEDS_NO_LEDS;
+				
+					HID_Host_ReceiveReport(&Mouse_HID_Interface, false, &ReportID, &MouseReport);
+					
+					/* Alter status LEDs according to mouse X movement */
+					if (MouseReport.X > 0)
+					  LEDMask |= LEDS_LED1;
+					else if (MouseReport.X < 0)
+					  LEDMask |= LEDS_LED2;
+						
+					/* Alter status LEDs according to mouse Y movement */
+					if (MouseReport.Y > 0)
+					  LEDMask |= LEDS_LED3;
+					else if (MouseReport.Y < 0)
+					  LEDMask |= LEDS_LED4;
+
+					/* Alter status LEDs according to mouse button position */
+					if (MouseReport.Button)
+					  LEDMask  = LEDS_ALL_LEDS;
+					
+					LEDs_SetAllLEDs(LEDMask);
+				}
+				else
+				{
+					LEDs_SetAllLEDs(LEDS_NO_LEDS);
+				}
+				
 				break;
 		}
 	

Demos/Host/ClassDriver/MouseHost/makefile

@@ -136,6 +136,7 @@ SRC = $(TARGET).c                                                 \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c  \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/Class/Device/HID.c            \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/Class/Host/HID.c              \
+	  $(LUFA_PATH)/LUFA/Drivers/USB/Class/Host/HIDParser.c        \
 	  
 
 # List C++ source files here. (C dependencies are automatically generated.)

LUFA/Drivers/USB/Class/Common/HID.h

@@ -48,29 +48,44 @@
 
 	/* Macros: */
 		/** HID Class Specific Request to get the current HID report from the device. */
-		#define REQ_GetReport      0x01
+		#define REQ_GetReport                0x01
 
 		/** HID Class Specific Request to get the current device idle count. */
-		#define REQ_GetIdle        0x02
+		#define REQ_GetIdle                  0x02
 
 		/** HID Class Specific Request to set the current HID report to the device. */
-		#define REQ_SetReport      0x09
+		#define REQ_SetReport                0x09
 
 		/** HID Class Specific Request to set the device's idle count. */
-		#define REQ_SetIdle        0x0A
+		#define REQ_SetIdle                  0x0A
 
 		/** HID Class Specific Request to get the current HID report protocol mode. */
-		#define REQ_GetProtocol    0x03
+		#define REQ_GetProtocol              0x03
 
 		/** HID Class Specific Request to set the current HID report protocol mode. */
-		#define REQ_SetProtocol    0x0B
+		#define REQ_SetProtocol              0x0B
 
 		/** Descriptor header type value, to indicate a HID class HID descriptor. */
-		#define DTYPE_HID          0x21
+		#define DTYPE_HID                    0x21
 		
 		/** Descriptor header type value, to indicate a HID class HID report descriptor. */
-		#define DTYPE_Report       0x22
+		#define DTYPE_Report                 0x22
 		
+		/** Constant for the protocol value of a HID interface descriptor, indicating that the interface does not support
+		 *  any HID class boot protocol (see HID Class Specification).
+		 */
+		#define HID_NON_BOOT_PROTOCOL        0x00
+
+		/** Constant for the protocol value of a HID interface descriptor, indicating that the interface supports the
+		 *  HID class Mouse boot protocol (see HID Class Specification).
+		 */
+		#define HID_BOOT_MOUSE_PROTOCOL      0x02
+		
+		/** Constant for the protocol value of a HID interface descriptor, indicating that the interface supports the
+		 *  HID class Keyboard boot protocol (see HID Class Specification).
+		 */
+		#define HID_BOOT_KEYBOARD_PROTOCOL   0x01
+
 	/* Type Defines: */
 		/** Type define for the HID class specific HID descriptor, to describe the HID device's specifications. Refer to the HID
 		 *  specification for details on the structure elements.
@@ -88,6 +103,22 @@
 			uint16_t                 HIDReportLength;
 		} USB_HID_Descriptor_t;
 
+		/** Type define for a standard Boot Protocol Mouse report */
+		typedef struct
+		{
+			uint8_t Button; /**< Button mask for currently pressed buttons in the mouse */
+			int8_t  X; /**< Current delta X movement of the mouse */
+			int8_t  Y; /**< Current delta Y movement on the mouse */
+		} USB_MouseReport_Data_t;
+		
+		/** Type define for a standard Boot Protocol Keyboard report */
+		typedef struct
+		{
+			uint8_t Modifier; /**< Keyboard modifier byte, indicating pressed modifier keys (such as Shift, Control, etc.) */
+			uint8_t Reserved; /**< Reserved for OEM use, always set to 0 */
+			uint8_t KeyCode; /**< Key code of the currently pressed key */
+		} USB_KeyboardReport_Data_t;
+
 		/** Type define for the data type used to store HID report descriptor elements. */
 		typedef uint8_t USB_Descriptor_HIDReport_Datatype_t;
 

LUFA/Drivers/USB/Class/Device/HID.h

@@ -131,7 +131,7 @@
 			 */
 			void HID_Device_MillisecondElapsed(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 			
-			/** HID class driver callback for the user creation of a HID input report. This callback may fire in response to either
+			/** HID class driver callback for the user creation of a HID IN report. This callback may fire in response to either
 			 *  HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback the
 			 *  user is responsible for the creation of the next HID input report to be sent to the host.
 			 *
@@ -148,7 +148,7 @@
 			bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
                                                      void* ReportData, uint16_t* ReportSize) ATTR_NON_NULL_PTR_ARG(1, 2, 3, 4);
 			
-			/** HID class driver callback for the user processing of a received HID input report. This callback may fire in response to
+			/** HID class driver callback for the user processing of a received HID OUT report. This callback may fire in response to
 			 *  either HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback
 			 *  the user is responsible for the processing of the received HID output report from the host.
 			 *

LUFA/Drivers/USB/Class/Host/HID.c

@@ -61,7 +61,7 @@ uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint
 	         (CurrentHIDInterface->Protocol != HIDInterfaceInfo->Config.HIDInterfaceProtocol));
 
 	HIDInterfaceInfo->State.InterfaceNumber      = CurrentHIDInterface->InterfaceNumber;
-	HIDInterfaceInfo->State.SupportsBootSubClass = (CurrentHIDInterface->SubClass != 0);
+	HIDInterfaceInfo->State.SupportsBootProtocol = (CurrentHIDInterface->SubClass != HID_NON_BOOT_PROTOCOL);
 
 	if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, DComp_NextHID) != DESCRIPTOR_SEARCH_COMP_Found)
 	{
@@ -97,6 +97,8 @@ uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint
 							   EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
 			HIDInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
 			
+			HIDInterfaceInfo->State.DeviceUsesOUTPipe = true;
+			
 			FoundEndpoints |= HID_FOUND_DATAPIPE_OUT;		
 		}
 	}
@@ -152,6 +154,97 @@ void HID_Host_USBTask(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 
 }
 
+uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, bool ControlRequest, uint8_t* ReportID, void* Buffer)
+{
+	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
+	  return false;
+
+	if (ControlRequest)
+	{
+		USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = REQ_SetReport,
+			.wValue        = *ReportID,
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, *ReportID, REPORT_ITEM_TYPE_In),
+		};
+
+		Pipe_SelectPipe(PIPE_CONTROLPIPE);
+		
+		return USB_Host_SendControlRequest(Buffer);
+	}
+	else
+	{
+		uint8_t ErrorCode;
+	
+		Pipe_SelectPipe(HIDInterfaceInfo->Config.DataINPipeNumber);
+		Pipe_Unfreeze();
+		
+		uint16_t ReportSize;
+
+		if (HIDInterfaceInfo->State.UsingBootProtocol)
+		{
+			ReportSize = Pipe_BytesInPipe();
+		}
+		else
+		{
+			if (HIDInterfaceInfo->Config.HIDParserData->UsingReportIDs)
+				*ReportID = Pipe_Read_Byte();
+			else
+				*ReportID = 0;
+			
+			ReportSize = USB_GetHIDReportSize(HIDInterfaceInfo->Config.HIDParserData, *ReportID, REPORT_ITEM_TYPE_In);
+		}
+
+		if ((ErrorCode = Pipe_Read_Stream_LE(Buffer, ReportSize, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+		  return ErrorCode;
+		
+		Pipe_Freeze();
+		
+		return PIPE_RWSTREAM_NoError;		
+	}
+}
+
+uint8_t HID_Host_SendReport(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint8_t ReportID, void* Buffer, uint16_t ReportSize)
+{
+	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
+	  return false;
+	  
+	if (HIDInterfaceInfo->State.DeviceUsesOUTPipe)
+	{
+		USB_ControlRequest = (USB_Request_Header_t)
+		{
+			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
+			.bRequest      = REQ_SetReport,
+			.wValue        = ReportID,
+			.wIndex        = HIDInterfaceInfo->State.InterfaceNumber,
+			.wLength       = ReportSize,
+		};
+
+		Pipe_SelectPipe(PIPE_CONTROLPIPE);
+		
+		return USB_Host_SendControlRequest(Buffer);
+	}
+	else
+	{
+		uint8_t ErrorCode;
+	
+		Pipe_SelectPipe(HIDInterfaceInfo->Config.DataOUTPipeNumber);
+		Pipe_Unfreeze();
+		
+		if (ReportID)
+		  Pipe_Write_Stream_LE(&ReportID, sizeof(ReportID), NO_STREAM_CALLBACK);
+		
+		if ((ErrorCode = Pipe_Write_Stream_LE(Buffer, ReportSize, NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+		  return ErrorCode;
+		
+		Pipe_Freeze();
+		
+		return PIPE_RWSTREAM_NoError;
+	}
+}
+
 bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 {
 	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
@@ -165,7 +258,7 @@ bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 	ReportReceived = Pipe_IsReadWriteAllowed();
 	
 	Pipe_Freeze();
-
+	
 	return ReportReceived;
 }
 
@@ -174,6 +267,8 @@ uint8_t USB_HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 	if ((USB_HostState != HOST_STATE_Configured) || !(HIDInterfaceInfo->State.IsActive))
 	  return false;
 
+	uint8_t ErrorCode;
+
 	USB_ControlRequest = (USB_Request_Header_t)
 		{
 			.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
@@ -188,7 +283,7 @@ uint8_t USB_HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo)
 	if (!(HIDInterfaceInfo->State.SupportsBootProtocol))
 	  return HID_ERROR_LOGICAL;
 
-	if ((ErrorCode = USB_Host_SendControlRequest(HIDReportData)) != HOST_SENDCONTROL_Successful)
+	if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
 	  return ErrorCode;
 
 	HIDInterfaceInfo->State.UsingBootProtocol = true;

LUFA/Drivers/USB/Class/Host/HID.h

@@ -73,8 +73,9 @@
 					uint8_t  DataOUTPipeNumber; /**< Pipe number of the HID interface's OUT data pipe */
 
 					uint8_t  HIDInterfaceProtocol; /**< HID interface protocol value to match against if a specific
-					                                *   boot subclass protocol is required (e.g. keyboard, mouse), or
-					                                *   leave as 0 to match against the first HID interface found
+					                                *   boot subclass protocol is required, either \ref HID_BOOT_MOUSE_PROTOCOL,
+													*   \ref HID_BOOT_KEYBOARD_PROTOCOL or \ref HID_NON_BOOT_PROTOCOL if any
+													*   HID device should be enumerated by the interface
 					                                */
 					HID_ReportInfo_t* HIDParserData; /**< HID parser data to store the parsed HID report data, when boot protocol
 					                                  *   is not used */
@@ -95,6 +96,9 @@
 					bool SupportsBootProtocol; /**< Indicates if the current interface instance supports the HID Boot
 					                            *   Protocol when enabled via \ref USB_HID_Host_SetBootProtocol()
 					                            */
+					bool DeviceUsesOUTPipe; /**< Indicates if the current interface instance uses a seperate OUT data pipe for
+					                         *   OUT reports, or if OUT reports are sent via the control pipe instead.
+					                         */
 					bool UsingBootProtocol; /**< Indicates that the interface is currently initialised in Boot Protocol mode */
 					uint16_t HIDReportSize; /**< Size in bytes of the HID report descriptor in the device */
 				} State; /**< State data for the USB class interface within the device. All elements in this section
@@ -141,14 +145,43 @@
 			uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint16_t ConfigDescriptorLength,
 			                                uint8_t* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1, 3);
 
-			/** Determines if a report has been received on the HID interface's IN report pipe, when the device is initialized
-			 *  into Report Protocol mode.
+
+			/** Receives a HID IN report from the attached HID device, either the next report from the device's IN data pipe,
+			 *  or a given report (by Report ID) if a specific report is desired.
+			 *
+			 *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class host configuration and state
+			 *  \param[in] ControlRequest  Set to true if the report should be requested by a control request, false otherwise
+			 *  \param[in,out] ReportID  Report ID of the received report if ControlRequest is false, set by the to the Report ID
+			 *                           to fetch if ControlRequest is true
+			 *  \param[in] Buffer  Buffer to store the received report into
+			 *
+			 *  \return An error code from the \ref USB_Host_SendControlErrorCodes_t enum if the ControlRequest flag is set,
+			 *          a value from the \ref Pipe_Stream_RW_ErrorCodes_t enum otherwise
+			 */
+			uint8_t HID_Host_ReceiveReport(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, bool ControlRequest, uint8_t* ReportID,
+			                               void* Buffer) ATTR_NON_NULL_PTR_ARG(1, 3);
+
+			/** Sends an OUT report to the currently attached HID device, using the device's OUT pipe if available or the device's
+			 *  Control pipe if not.
+			 *
+			 *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class host configuration and state
+			 *  \param[in] ReportID  Report ID of the report to send to the device, or 0 if the device does not use report IDs
+			 *  \param[in] Buffer  Buffer containing the report to send to the attached device
+			 *  \param[in] ReportSize  Report size in bytes to send to the attached device
+			 *
+			 *  \return An error code from the \ref USB_Host_SendControlErrorCodes_t enum if the DeviceUsesOUTPipe flag is set in
+			 *          the interface's state structure, a value from the \ref Pipe_Stream_RW_ErrorCodes_t enum otherwise
+			 */
+			uint8_t HID_Host_SendReport(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint8_t ReportID,
+			                            void* Buffer, uint16_t ReportSize) ATTR_NON_NULL_PTR_ARG(1, 3);
+
+			/** Determines if a HID IN report has been received from the attached device on the data IN pipe.
 			 *
 			 *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class host configuration and state
 			 *
 			 *  \return Boolean true if a report has been received, false otherwise
 			 */
-			bool    HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+			bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 			
 			/** Switches the attached HID device's reporting protocol over to the Boot Report protocol mode, on supported devices.
 			 *

LUFA/Drivers/USB/Class/Host/HIDParser.c

@@ -342,4 +342,25 @@ void USB_SetHIDReportItemInfo(uint8_t* ReportData, const HID_ReportItem_t* Repor
 	}
 }
 
+uint16_t USB_GetHIDReportSize(HID_ReportInfo_t* const ParserData, uint8_t ReportID, uint8_t ReportType)
+{
+	for (uint8_t i = 0; i < HID_MAX_REPORT_IDS; i++)
+	{
+		if (ParserData->ReportIDSizes[i].ReportID == ReportID)
+		{
+			switch (ReportType)
+			{
+				case REPORT_ITEM_TYPE_In:
+					return ParserData->ReportIDSizes[i].BitsIn;
+				case REPORT_ITEM_TYPE_Out:
+					return ParserData->ReportIDSizes[i].BitsOut;
+				case REPORT_ITEM_TYPE_Feature:
+					return ParserData->ReportIDSizes[i].BitsFeature;
+			}
+		}
+	}
+
+	return 0;
+}
+
 #endif

LUFA/Drivers/USB/Class/Host/HIDParser.h

@@ -269,6 +269,18 @@
 			void USB_SetHIDReportItemInfo(uint8_t* ReportData, const HID_ReportItem_t* ReportItem)
 			                              ATTR_NON_NULL_PTR_ARG(1, 2);
 										  
+			/** Retrieves the size of a given HID report in bytes from it's Report ID.
+			 *
+			 *  \param[in] ParserData  Pointer to a \ref HID_ReportInfo_t instance containing the parser output
+			 *  \param[in] ReportID  Report ID of the report whose size is to be retrieved
+			 *  \param[in] ReportType  Type of the report whose size is to be determined, a valued from the
+			 *                         \ref HID_ReportItemTypes_t enum
+			 *
+			 *  \return Size of the report in bytes, or 0 if the report does not exist
+			 */
+			uint16_t USB_GetHIDReportSize(HID_ReportInfo_t* const ParserData, uint8_t ReportID,
+			                              uint8_t ReportType) ATTR_NON_NULL_PTR_ARG(1);
+
 			/** Callback routine for the HID Report Parser. This callback <b>must</b> be implemented by the user code when
 			 *  the parser is used, to determine what report IN, OUT and FEATURE item's information is stored into the user
 			 *  HID_ReportInfo_t structure. This can be used to filter only those items the application will be using, so that

LUFA/Drivers/USB/LowLevel/Pipe.c

@@ -93,7 +93,7 @@ uint8_t Pipe_WaitUntilReady(void)
 	#else
 	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
 	#endif
-
+	
 	for (;;)
 	{
 		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)

LUFA/Drivers/USB/LowLevel/Pipe.h

@@ -292,6 +292,12 @@
 				/** Freezes the selected pipe, preventing it from communicating with an attached device. */
 				static inline void Pipe_Freeze(void);
 
+				/** Determines if the currently selected pipe is frozen, and not able to accept data.
+				 *
+				 *  \return Boolean true if the currently selected pipe is frozen, false otherwise
+				 */
+				static inline bool Pipe_IsFrozen(void);
+				
 				/** Clears the master pipe error flag. */
 				static inline void Pipe_ClearError(void);
 				
@@ -445,6 +451,8 @@
 				#define Pipe_Unfreeze()                MACROS{ UPCONX &= ~(1 << PFREEZE); }MACROE
 
 				#define Pipe_Freeze()                  MACROS{ UPCONX |= (1 << PFREEZE); }MACROE
+				
+				#define Pipe_IsFrozen()                ((UPCONX & (1 << PFREEZE)) ? true : false)
 
 				#define Pipe_ClearError()              MACROS{ UPINTX &= ~(1 << PERRI); }MACROE
 

LUFA/ManPages/ChangeLog.txt

@@ -20,7 +20,9 @@
   *  - Added extra masks to the SPI driver, changed SPI_Init() so that the clock polarity and sample modes can be set
   *  - Added new callback to the HID report parser, so that the user application can filter only the items it is interested
   *    in to be stored into the HIDReportInfo structure to save RAM
-  *  - Added support for the officially recommended layout of the external peripherals connected to the BUMBLEB board
+  *  - Added support for the officially recommended external peripheral layout for the BUMBLEB board (thanks to Dave Fletcher)
+  *  - Added new Pipe_IsFrozen() macro to determine if the currently selected pipe is frozen
+  *  - Added new USB_GetHIDReportSize() function to the HID report parser to retrieve the size of a given report by its ID
   *  
   *  <b>Changed:</b>
   *  - SetIdle requests to the HID device driver with a 0 idle period (send changes only) now only affect the requested

LUFA/ManPages/DeviceSupport.txt

@@ -29,7 +29,7 @@
  *   - ATAVRUSBRF01
  *
  *  Currently supported third-party boards:
- *   - BUMBLEB (using recommended peripheral layout)
+ *   - BUMBLEB (using officially recommended peripheral layout)
  *   - Any Other Custom User Boards (with Board Drivers, \see Page_WritingBoardDrivers)
  */
  
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