Add to the existing CDC Class Driver's CreateStream() function documentation to explicitly state that the created streams are bidirectional.

Bootloaders/DFU/BootloaderDFU.c

@@ -690,11 +690,7 @@ static void ProcessReadCommand(void)
 	uint8_t DataIndexToRead = SentCommand.Data[1];
 
 	if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00))                         // Read bootloader info
-	{
 	  ResponseByte = BootloaderInfo[DataIndexToRead];
-	}
 	else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01))                    // Read signature byte
-	{
 	  ResponseByte = SignatureInfo[DataIndexToRead - 0x30];
-	}
 }

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

@@ -212,7 +212,8 @@
 			void CDC_Device_SendControlLineStateChange(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 
 			/** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular
-			 *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf).
+			 *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf). The created
+			 *  stream is bidirectional and can be used for both input and output functions.
 			 *
 			 *  Reading data from this stream is non-blocking, i.e. in most instances, complete strings cannot be read in by a single
 			 *  fetch, as the endpoint will not be ready at some point in the transmission, aborting the transfer. However, this may

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

@@ -215,7 +215,8 @@
 			uint8_t CDC_Host_ReceiveByte(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 			
 			/** Creates a standard characer stream for the given CDC Device instance so that it can be used with all the regular
-			 *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf).
+			 *  functions in the avr-libc <stdio.h> library that accept a FILE stream as a destination (e.g. fprintf). The created
+			 *  stream is bidirectional and can be used for both input and output functions.
 			 *
 			 *  \note The created stream can be given as stdout if desired to direct the standard output from all <stdio.h> functions
 			 *        to the given CDC interface.