Completion of initial CDC host mode class driver.

Adjustments to the CDC and MIDI device class drivers to use sizeof() on the actual variable being transmitted or received rather than its datatype to reduce possible mistakes.

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

@@ -195,11 +195,13 @@ void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDC
 			.bRequest      = NOTIF_SerialState,
 			.wValue        = 0,
 			.wIndex        = 0,
-			.wLength       = sizeof(uint16_t),
+			.wLength       = sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
 		};
 
 	Endpoint_Write_Stream_LE(&Notification, sizeof(Notification), NO_STREAM_CALLBACK);
-	Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost, sizeof(uint8_t), NO_STREAM_CALLBACK);
+	Endpoint_Write_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
+	                         sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
+	                         NO_STREAM_CALLBACK);
 	Endpoint_ClearIN();
 }
 

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

@@ -79,7 +79,7 @@ void MIDI_Device_SendEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInterfac
 
 	if (Endpoint_IsReadWriteAllowed());
 	{
-		Endpoint_Write_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);
+		Endpoint_Write_Stream_LE(Event, sizeof(Event), NO_STREAM_CALLBACK);
 		Endpoint_ClearIN();
 	}
 }
@@ -94,7 +94,7 @@ bool MIDI_Device_ReceiveEventPacket(USB_ClassInfo_MIDI_Device_t* const MIDIInter
 	if (!(Endpoint_IsReadWriteAllowed()))
 	  return false;
 
-	Endpoint_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NO_STREAM_CALLBACK);
+	Endpoint_Read_Stream_LE(Event, sizeof(Event), NO_STREAM_CALLBACK);
 	Endpoint_ClearOUT();
 	
 	return true;

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

@@ -34,12 +34,10 @@
 #define  INCLUDE_FROM_CDC_CLASS_HOST_C
 #include "CDC.h"
 
-#warning The CDC Host mode Class driver is currently incomplete and is for preview purposes only.
-
 uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint16_t ConfigDescriptorSize,
                                 uint8_t* ConfigDescriptorData)
 {
-	uint8_t  FoundEndpoints = 0;
+	uint8_t FoundEndpoints = 0;
 
 	memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
 
@@ -198,7 +196,32 @@ static uint8_t DComp_CDC_Host_NextInterfaceCDCDataEndpoint(void* CurrentDescript
 
 void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)
 {
-	EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
+	if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))
+	  return;
+	
+	Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);	
+	Pipe_Unfreeze();
+
+	if (Pipe_IsINReceived())
+	{
+		USB_Request_Header_t Notification;
+		Pipe_Read_Stream_LE(&Notification, sizeof(Notification), NO_STREAM_CALLBACK);
+		
+		if ((Notification.bRequest      == NOTIF_SerialState) &&
+		    (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))
+		{
+			Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
+			                    sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
+			                    NO_STREAM_CALLBACK);
+			
+		}
+
+		Pipe_ClearIN();
+
+		EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
+	}
+	
+	Pipe_Freeze();
 }
 
 uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)
@@ -206,7 +229,7 @@ uint8_t CDC_Host_SetLineEncoding(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)
 	USB_ControlRequest = (USB_Request_Header_t)
 	{
 		.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
-		.bRequest      = REQ_SetControlLineState,
+		.bRequest      = REQ_SetLineEncoding,
 		.wValue        = 0,
 		.wIndex        = CDCInterfaceInfo->State.ControlInterfaceNumber,
 		.wLength       = sizeof(CDCInterfaceInfo->State.LineEncoding),