Avoid unused parameter compiler warnings

Author: henrygab

cores/arduino/WInterrupts.c

@@ -250,7 +250,7 @@ void detachInterrupt(uint32_t pin)
  * External Interrupt Controller NVIC Interrupt Handler
  */
 #if defined(__SAMD51__)
-void InterruptHandler(uint32_t i)
+void InterruptHandler(__attribute__((unused)) uint32_t i)
 {
   // Calling the routine directly from -here- takes about 1us
   // Depending on where you are in the list it will take longer

libraries/Adafruit_ZeroDMA/examples/zerodma_spi1/zerodma_spi1.ino

@@ -19,6 +19,7 @@ volatile bool transfer_is_done = false; // Done yet?
 
 // Callback for end-of-DMA-transfer
 void dma_callback(Adafruit_ZeroDMA *dma) {
+  (void)dma; // avoid compiler warning about unused parameter
   transfer_is_done = true;
 }
 

libraries/Adafruit_ZeroDMA/examples/zerodma_spi2/zerodma_spi2.ino

@@ -33,6 +33,7 @@ volatile bool transfer_is_done = true; // Done yet?
 
 // Callback for end-of-DMA-transfer
 void dma_callback(Adafruit_ZeroDMA *dma) {
+  (void)dma; // avoid compiler warning about unused parameter
   transfer_is_done = true;
 }
 

libraries/Servo/src/samd/Servo.cpp

@@ -172,7 +172,7 @@ static inline void resetTC (Tc* TCx)
     while (TCx->COUNT16.CTRLA.bit.SWRST);
 }
 
-static void _initISR(Tc *tc, uint8_t channel, uint32_t id, IRQn_Type irqn, uint8_t gcmForTimer, uint8_t intEnableBit)
+static void _initISR(Tc *tc, uint8_t channel, __attribute__((unused)) uint32_t id, IRQn_Type irqn, uint8_t gcmForTimer, uint8_t intEnableBit)
 {
     // Select GCLK0 as timer/counter input clock source
 #if defined(__SAMD51__)
@@ -263,7 +263,7 @@ static void initISR(timer16_Sequence_t timer)
 #endif
 }
 
-static void finISR(timer16_Sequence_t timer)
+static void finISR(__attribute__((unused)) timer16_Sequence_t timer)
 {
 #if defined (_useTimer1)
     // Disable the match channel interrupt request