Test with -Wextra, fix library warnings due to unused function parameters.

Demos/Host/ClassDriver/MassStorageHost/makefile

@@ -116,7 +116,7 @@ LUFA_PATH = ../../../..
 
 
 # LUFA library compile-time options
-LUFA_OPTS  = -D USB_HOST_ONLY
+LUFA_OPTS  = -D USB_HOST_ONLY -Wextra
 LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
 LUFA_OPTS += -D USB_STREAM_TIMEOUT_MS=5000
 

LUFA/Drivers/Peripheral/SerialStream.c

@@ -35,12 +35,15 @@ FILE USARTStream = FDEV_SETUP_STREAM(SerialStream_TxByte, SerialStream_RxByte, _
 
 static int SerialStream_TxByte(char DataByte, FILE *Stream)
 {
+	(void)Stream;
+	
 	Serial_TxByte(DataByte);
-
 	return 0;
 }
 
 static int SerialStream_RxByte(FILE *Stream)
 {
+	(void)Stream;
+
 	return Serial_RxByte();
 }

LUFA/Drivers/USB/Class/Device/Audio.c

@@ -86,7 +86,7 @@ bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* AudioInterfac
 
 void Audio_Device_USBTask(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
 {
-
+	(void)AudioInterfaceInfo;
 }
 
 bool Audio_Device_IsSampleReceived(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)

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

@@ -152,6 +152,8 @@
 			static inline int8_t Audio_Device_ReadSample8(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
 			{
 				int8_t Sample;
+				
+				(void)AudioInterfaceInfo;
 
 				Sample = Endpoint_Read_Byte();
 
@@ -175,6 +177,8 @@
 			{
 				int16_t Sample;
 
+				(void)AudioInterfaceInfo;
+
 				Sample = (int16_t)Endpoint_Read_Word_LE();
 					  
 				if (!(Endpoint_BytesInEndpoint()))
@@ -196,6 +200,8 @@
 			{
 				int32_t Sample;
 
+				(void)AudioInterfaceInfo;
+
 				Sample = (((uint32_t)Endpoint_Read_Byte() << 16) | Endpoint_Read_Word_LE());
 					  
 				if (!(Endpoint_BytesInEndpoint()))

LUFA/Drivers/USB/Class/Device/MIDI.c

@@ -67,7 +67,7 @@ bool MIDI_Device_ConfigureEndpoints(USB_ClassInfo_MIDI_Device_t* const MIDIInter
 
 void MIDI_Device_USBTask(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo)
 {
-
+	(void)MIDIInterfaceInfo;
 }
 
 uint8_t MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)

LUFA/Drivers/USB/Class/Device/RNDIS.c

@@ -335,6 +335,9 @@ static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RN
                                           const uint32_t OId, void* const QueryData, const uint16_t QuerySize,
                                           void* ResponseData, uint16_t* const ResponseSize)
 {
+	(void)QueryData;
+	(void)QuerySize;
+
 	switch (OId)
 	{
 		case OID_GEN_SUPPORTED_LIST:
@@ -443,9 +446,11 @@ static bool RNDIS_Device_ProcessNDISQuery(USB_ClassInfo_RNDIS_Device_t* const RN
 	}
 }
 
-static bool RNDIS_Device_ProcessNDISSet(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo, const uint32_t OId, void* SetData,
-                                        const uint16_t SetSize)
+static bool RNDIS_Device_ProcessNDISSet(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo, const uint32_t OId,
+                                        void* SetData, const uint16_t SetSize)
 {
+	(void)SetSize;
+
 	switch (OId)
 	{
 		case OID_GEN_CURRENT_PACKET_FILTER:

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

@@ -152,7 +152,7 @@ static uint8_t DComp_HID_Host_NextHIDInterfaceEndpoint(void* const CurrentDescri
 
 void HID_Host_USBTask(USB_ClassInfo_HID_Host_t* const HIDInterfaceInfo)
 {
-
+	(void)HIDInterfaceInfo;
 }
 
 #if !defined(HID_HOST_BOOT_PROTOCOL_ONLY)

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

@@ -124,7 +124,7 @@ static uint8_t DComp_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const Current
 
 void MIDI_Host_USBTask(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo)
 {
-
+	(void)MIDIInterfaceInfo;
 }
 
 uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo, MIDI_EventPacket_t* const Event)
@@ -134,7 +134,7 @@ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface
 	
 	Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
 
-	if (Pipe_IsReadWriteAllowed());
+	if (Pipe_IsReadWriteAllowed())
 	{
 		uint8_t ErrorCode;
 

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

@@ -129,7 +129,7 @@ static uint8_t DComp_NextMSInterfaceEndpoint(void* const CurrentDescriptor)
 
 void MS_Host_USBTask(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
 {
-	
+	(void)MSInterfaceInfo;
 }
 
 static uint8_t MS_Host_SendCommand(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo, MS_CommandBlockWrapper_t* const SCSICommandBlock,

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

@@ -124,7 +124,7 @@ static uint8_t DComp_NextPRNTInterfaceEndpoint(void* CurrentDescriptor)
 
 void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
 {
-	
+	(void)PRNTInterfaceInfo;
 }
 
 uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)

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

@@ -207,7 +207,7 @@ static uint8_t DComp_RNDIS_Host_NextRNDISInterfaceEndpoint(void* const CurrentDe
 
 void RNDIS_Host_USBTask(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo)
 {
-
+	(void)RNDISInterfaceInfo;
 }
 
 static uint8_t RNDIS_SendEncapsulatedCommand(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo,

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

@@ -144,7 +144,7 @@ uint8_t DComp_SI_Host_NextSIInterfaceEndpoint(void* const CurrentDescriptor)
 
 void SImage_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)
 {
-
+	(void)SIInterfaceInfo;
 }
 
 static uint8_t SImage_Host_SendBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, SI_PIMA_Container_t* const PIMAHeader)

LUFA/ManPages/ChangeLog.txt

@@ -59,6 +59,8 @@
   *  - Fixed MassStorageHost Class driver demo not having USB_STREAM_TIMEOUT_MS compile time option set properly to prevent slow 
   *    devices from timing out the data pipes
   *  - Fixed the definition of the Endpoint_BytesInEndpoint() macro for the U4 series AVR parts
+  *  - Fixed MIDI host Class driver MIDI_Host_SendEventPacket() routine not properly checking for Pipe ready before writing
+  *  - Fixed use of deprecated struct initializers, removed library unused parameter warnings when compiled with -Wextra enabled
   *
   *  \section Sec_ChangeLog091122 Version 091122
   *