X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/cb779e3d7d32d7c43e0a45bb526de0a04135b0c7..002cd6df49981ad75b2092f2ae6b3efc4e2dd364:/LUFA/Drivers/USB/Class/Host/MIDI.c

diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.c b/LUFA/Drivers/USB/Class/Host/MIDI.c
index 6aed766c8..87e429010 100644
--- a/LUFA/Drivers/USB/Class/Host/MIDI.c
+++ b/LUFA/Drivers/USB/Class/Host/MIDI.c
@@ -105,14 +105,15 @@ uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceI
 
 static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDescriptor)
 {
-	if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+	if (Header->Type == DTYPE_Interface)
 	{
-		USB_Descriptor_Interface_t* CurrentInterface = DESCRIPTOR_PCAST(CurrentDescriptor,
-		                                                                USB_Descriptor_Interface_t);
+		USB_Descriptor_Interface_t* Interface = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Interface_t);
 
-		if ((CurrentInterface->Class    == AUDIO_CSCP_AudioClass)            &&
-		    (CurrentInterface->SubClass == AUDIO_CSCP_MIDIStreamingSubclass) &&
-		    (CurrentInterface->Protocol == AUDIO_CSCP_StreamingProtocol))
+		if ((Interface->Class    == AUDIO_CSCP_AudioClass)            &&
+		    (Interface->SubClass == AUDIO_CSCP_MIDIStreamingSubclass) &&
+		    (Interface->Protocol == AUDIO_CSCP_StreamingProtocol))
 		{
 			return DESCRIPTOR_SEARCH_Found;
 		}
@@ -123,17 +124,18 @@ static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingInterface(void* const CurrentDes
 
 static uint8_t DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint(void* const CurrentDescriptor)
 {
-	if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
+	USB_Descriptor_Header_t* Header = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Header_t);
+
+	if (Header->Type == DTYPE_Endpoint)
 	{
-		USB_Descriptor_Endpoint_t* CurrentEndpoint = DESCRIPTOR_PCAST(CurrentDescriptor,
-		                                                              USB_Descriptor_Endpoint_t);
+		USB_Descriptor_Endpoint_t* Endpoint = DESCRIPTOR_PCAST(CurrentDescriptor, USB_Descriptor_Endpoint_t);
 
-		uint8_t EndpointType = (CurrentEndpoint->Attributes & EP_TYPE_MASK);
+		uint8_t EndpointType = (Endpoint->Attributes & EP_TYPE_MASK);
 
-		if ((EndpointType == EP_TYPE_BULK) && !(Pipe_IsEndpointBound(CurrentEndpoint->EndpointAddress)))
+		if ((EndpointType == EP_TYPE_BULK) && !(Pipe_IsEndpointBound(Endpoint->EndpointAddress)))
 		  return DESCRIPTOR_SEARCH_Found;
 	}
-	else if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
+	else if (Header->Type == DTYPE_Interface)
 	{
 		return DESCRIPTOR_SEARCH_Fail;
 	}
@@ -177,18 +179,15 @@ uint8_t MIDI_Host_SendEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterface
 	if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive))
 	  return HOST_SENDCONTROL_DeviceDisconnected;
 
-	Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
+	uint8_t ErrorCode;
 
-	if (Pipe_IsReadWriteAllowed())
-	{
-		uint8_t ErrorCode;
+	Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber);
 
-		if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
-		  return ErrorCode;
+	if ((ErrorCode = Pipe_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK)) != PIPE_RWSTREAM_NoError)
+	  return ErrorCode;
 
-		if (!(Pipe_IsReadWriteAllowed()))
-		  Pipe_ClearOUT();
-	}
+	if (!(Pipe_IsReadWriteAllowed()))
+	  Pipe_ClearOUT();
 
 	return PIPE_RWSTREAM_NoError;
 }