Re-enable cppcheck static analysis unused function checks after adding in special-case suppressions to the event stub functions. Add missing function prototypes to the AudioInput and AudioOutput class driver device demos.

LUFA/DoxygenPages/LUFAPoweredProjects.txt

@@ -36,7 +36,6 @@
  *  The following are known hobbyist projects using LUFA. Most are open source, and show off interesting ways that the LUFA library
  *  can be incorporated into many different applications.
  *
- *  - Accelerometer Game Joystick: http://www.crictor.co.il/he/episodes/joystick/
  *  - Arcade Controller: http://fletchtronics.net/arcade-controller-made-petunia
  *  - Arcade Joystick: http://jamie.lentin.co.uk/embedded/arcade-joystick/
  *  - AttoBasic AVR BASIC interpreter: http://www.cappels.org/dproj/AttoBasic2_1/AttoBasic_2.1_with_USB_and_Arduino_support.html

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

@@ -211,6 +211,7 @@ bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* const AudioIn
 	return true;
 }
 
+// cppcheck-suppress unusedFunction
 void Audio_Device_Event_Stub(void)
 {
 

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

@@ -352,6 +352,7 @@ static int CDC_Device_getchar_Blocking(FILE* Stream)
 }
 #endif
 
+// cppcheck-suppress unusedFunction
 void CDC_Device_Event_Stub(void)
 {
 

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

@@ -504,6 +504,7 @@ static int CDC_Host_getchar_Blocking(FILE* Stream)
 }
 #endif
 
+// cppcheck-suppress unusedFunction
 void CDC_Host_Event_Stub(void)
 {
 

LUFA/Drivers/USB/Core/Events.c

@@ -32,6 +32,7 @@
 #define  __INCLUDE_FROM_USB_DRIVER
 #include "Events.h"
 
+// cppcheck-suppress unusedFunction
 void USB_Event_Stub(void)
 {