Fix all device mode demos broken in the recent API changes.

Change USBtoSerial Tx to polling-driven rather than interrupt driven, to ensure more time for the Rx interrupt to be serviced.

Demos/Device/AudioOutput/AudioOutput.c

@@ -75,7 +75,7 @@ int main(void)
 /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs, and
  *  configures the sample update and PWM timers.
  */
-void EventHandler_USB_Connect(void)
+void EVENT_USB_Connect(void)
 {
 	/* Start USB management task */
 	Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
@@ -110,7 +110,7 @@ void EventHandler_USB_Connect(void)
 /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
  *  the status LEDs, disables the sample update and PWM output timers and stops the USB and Audio management tasks.
  */
-void EventHandler_USB_Disconnect(void)
+void EVENT_USB_Disconnect(void)
 {
 	/* Stop the timers */
 	TCCR0B = 0;
@@ -140,7 +140,7 @@ void EventHandler_USB_Disconnect(void)
 /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
  *  of the USB device after enumeration - the device endpoints are configured.
  */
-void EventHandler_USB_ConfigurationChanged(void)
+void EVENT_USB_ConfigurationChanged(void)
 {
 	/* Setup audio stream endpoint */
 	Endpoint_ConfigureEndpoint(AUDIO_STREAM_EPNUM, EP_TYPE_ISOCHRONOUS,
@@ -155,7 +155,7 @@ void EventHandler_USB_ConfigurationChanged(void)
  *  control requests that are not handled internally by the USB library (including the Audio class-specific
  *  requests) so that they can be handled appropriately for the application.
  */
-void EventHandler_USB_UnhandledControlPacket(void)
+void EVENT_USB_UnhandledControlPacket(void)
 {
 	/* Process General and Audio specific control requests */
 	switch (USB_ControlRequest.bRequest)

Demos/Device/AudioOutput/Descriptors.c

@@ -271,7 +271,7 @@ USB_Descriptor_String_t PROGMEM ProductString =
  *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
  *  USB host.
  */
-uint16_t USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
 {
 	const uint8_t  DescriptorType   = (wValue >> 8);
 	const uint8_t  DescriptorNumber = (wValue & 0xFF);

Demos/Device/GenericHID/GenericHID.c

@@ -59,6 +59,9 @@ int main(void)
 	/* Disable clock division */
 	clock_prescale_set(clock_div_1);
 
+	/* Hardware Initialization */
+	LEDs_Init();
+
 	/* Indicate USB not ready */
 	UpdateStatus(Status_USBNotReady);
 

Demos/Device/MassStorage/MassStorage.c

@@ -86,7 +86,7 @@ int main(void)
 }
 
 /** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs. */
-void EventHandler_USB_Connect(void)
+void EVENT_USB_Connect(void)
 {
 	/* Indicate USB enumerating */
 	UpdateStatus(Status_USBEnumerating);
@@ -98,7 +98,7 @@ void EventHandler_USB_Connect(void)
 /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
  *  the status LEDs and stops the Mass Storage management task.
  */
-void EventHandler_USB_Disconnect(void)
+void EVENT_USB_Disconnect(void)
 {
 	/* Stop running mass storage task */
 	Scheduler_SetTaskMode(USB_MassStorage, TASK_STOP);
@@ -110,7 +110,7 @@ void EventHandler_USB_Disconnect(void)
 /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
  *  of the USB device after enumeration - the device endpoints are configured and the Mass Storage management task started.
  */
-void EventHandler_USB_ConfigurationChanged(void)
+void EVENT_USB_ConfigurationChanged(void)
 {
 	/* Setup Mass Storage In and Out Endpoints */
 	Endpoint_ConfigureEndpoint(MASS_STORAGE_IN_EPNUM, EP_TYPE_BULK,
@@ -132,7 +132,7 @@ void EventHandler_USB_ConfigurationChanged(void)
  *  control requests that are not handled internally by the USB library (including the Mass Storage class-specific
  *  requests) so that they can be handled appropriately for the application.
  */
-void EventHandler_USB_UnhandledControlPacket(void)
+void EVENT_USB_UnhandledControlPacket(void)
 {
 	/* Process UFI specific control requests */
 	switch (USB_ControlRequest.bRequest)

Demos/Device/USBtoSerial/USBtoSerial.c

@@ -256,16 +256,9 @@ TASK(CDC_Task)
 			}
 		}
 		
-		/* Check if Rx buffer contains data */
+		/* Check if Rx buffer contains data - if so, send it */
 		if (Rx_Buffer.Elements)
-		{
-			/* Initiate the transmission of the buffer contents if USART idle */
-			if (!(Transmitting))
-			{
-				Transmitting = true;
-				Serial_TxByte(Buffer_GetElement(&Rx_Buffer));
-			}
-		}
+		  Serial_TxByte(Buffer_GetElement(&Rx_Buffer));
 
 		/* Select the Serial Tx Endpoint */
 		Endpoint_SelectEndpoint(CDC_TX_EPNUM);
@@ -303,19 +296,6 @@ TASK(CDC_Task)
 	}
 }
 
-/** ISR to handle the USART transmit complete interrupt, fired each time the USART has sent a character. This reloads the USART
- *  data register with the next byte from the Rx_Buffer circular buffer if a character is available, or stops the transmission if
- *  the buffer is currently empty.
- */
-ISR(USART1_TX_vect, ISR_BLOCK)
-{
-	/* Send next character if available */
-	if (Rx_Buffer.Elements)
-	  UDR1 = Buffer_GetElement(&Rx_Buffer);
-	else
-	  Transmitting = false;
-}
-
 /** ISR to handle the USART receive complete interrupt, fired each time the USART has received a character. This stores the received
  *  character into the Tx_Buffer circular buffer for later transmission to the host.
  */
@@ -383,7 +363,7 @@ void ReconfigureUSART(void)
 	UCSR1A = (1 << U2X1);
 	
 	/* Enable transmit and receive modules and interrupts */
-	UCSR1B = ((1 << TXCIE1) | (1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
+	UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
 
 	/* Set the USART mode to the mask generated by the Line Coding options */
 	UCSR1C = ConfigMask;