Ensure that unsupported SetFeature/ClearFeature request targets cause a STALL back to the host.

Bootloaders/TeensyHID/makefile

@@ -80,7 +80,7 @@ BOARD  =
 #     does not *change* the processor frequency - it should merely be updated to
 #     reflect the processor speed set externally so that the code can use accurate
 #     software delays.
-F_CPU = 16000000
+F_CPU = 8000000
 
 
 # Input clock frequency.

LUFA/Drivers/USB/LowLevel/DevChapter9.c

@@ -307,18 +307,19 @@ static void USB_Device_GetStatus(void)
 
 	switch (USB_ControlRequest.bmRequestType)
 	{
+#if !defined(NO_DEVICE_SELF_POWER) || !defined(NO_DEVICE_REMOTE_WAKEUP)	
 		case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE):
-#if !defined(NO_DEVICE_SELF_POWER)
+	#if !defined(NO_DEVICE_SELF_POWER)
 			if (USB_CurrentlySelfPowered)
 			  CurrentStatus |= FEATURE_SELFPOWERED_ENABLED;
-#endif
+	#endif
 
-#if !defined(NO_DEVICE_REMOTE_WAKEUP)			
+	#if !defined(NO_DEVICE_REMOTE_WAKEUP)			
 			if (USB_RemoteWakeupEnabled)
 			  CurrentStatus |= FEATURE_REMOTE_WAKEUP_ENABLED;
-#endif
-
+	#endif
 			break;
+#endif
 #if !defined(CONTROL_ONLY_DEVICE)
 		case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT):
 			Endpoint_SelectEndpoint(USB_ControlRequest.wIndex & 0xFF);
@@ -345,15 +346,15 @@ static void USB_Device_ClearSetFeature(void)
 {	
 	switch (USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT)
 	{
-		case REQREC_DEVICE:
 #if !defined(NO_DEVICE_REMOTE_WAKEUP)			
+		case REQREC_DEVICE:
 			if ((uint8_t)USB_ControlRequest.wValue == FEATURE_REMOTE_WAKEUP)
 			  USB_RemoteWakeupEnabled = (USB_ControlRequest.bRequest == REQ_SetFeature);
 			else
 			  return;
-#endif
 			
 			break;			
+#endif
 #if !defined(CONTROL_ONLY_DEVICE)
 		case REQREC_ENDPOINT:
 			if ((uint8_t)USB_ControlRequest.wValue == FEATURE_ENDPOINT_HALT)
@@ -382,6 +383,8 @@ static void USB_Device_ClearSetFeature(void)
 			
 			break;
 #endif
+		default:
+			return;
 	}
 
 	Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);

LUFA/Drivers/USB/LowLevel/Endpoint.c

@@ -207,6 +207,9 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length
 	return ENDPOINT_RWSTREAM_NoError;
 }
 
+/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,
+ * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */
+
 #define  TEMPLATE_FUNC_NAME                        Endpoint_Write_Stream_LE
 #define  TEMPLATE_BUFFER_TYPE                      const void*
 #define  TEMPLATE_CLEAR_ENDPOINT()                 Endpoint_ClearIN()

LUFA/Drivers/USB/LowLevel/Pipe.c

@@ -199,6 +199,9 @@ uint8_t Pipe_Discard_Stream(uint16_t Length
 	return PIPE_RWSTREAM_NoError;
 }
 
+/* The following abuses the C preprocessor in order to copy-past common code with slight alterations,
+ * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */
+
 #define  TEMPLATE_FUNC_NAME                        Pipe_Write_Stream_LE
 #define  TEMPLATE_BUFFER_TYPE                      const void*
 #define  TEMPLATE_TOKEN                            PIPE_TOKEN_OUT