*  \code
  *      // Initialize the board LED driver before first use
  *      LEDs_Init();
- *      
+ *
  *      // Turn on each of the four LEDs in turn
  *      LEDs_SetAllLEDs(LEDS_LED1);
  *      Delay_MS(500);
  *      Delay_MS(500);
  *      LEDs_SetAllLEDs(LEDS_LED4);
  *      Delay_MS(500);
- *      
+ *
  *      // Turn on all LEDs
  *      LEDs_SetAllLEDs(LEDS_ALL_LEDS);
  *      Delay_MS(1000);
- *      
+ *
  *      // Turn on LED 1, turn off LED 2, leaving LEDs 3 and 4 in their current state
  *      LEDs_ChangeLEDs((LEDS_LED1 | LEDS_LED2), LEDS_LED1);
  *  \endcode
 
        /* Preprocessor Checks: */
                #if !defined(__DOXYGEN__)
+                       #if !defined(LEDS_NO_LEDS)
+                               #define LEDS_NO_LEDS   0
+                       #endif
+
+                       #if !defined(LEDS_ALL_LEDS)
+                               #define LEDS_ALL_LEDS  (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4)
+                       #endif
+
                        #if !defined(LEDS_LED1)
                                #define LEDS_LED1      0
                        #endif