1 files changed, 2 insertions, 1 deletions
diff --git a/cores/arduino/wiring.h b/cores/arduino/wiring.h
index d0ce1c3..6f61293 100755
--- a/cores/arduino/wiring.h
+++ b/cores/arduino/wiring.h
@@ -117,7 +117,8 @@ void delay(unsigned long);
 void delayMicroseconds(unsigned int us);
 unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);
 
-void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, byte val);
+void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
+uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder);
 
 void attachInterrupt(uint8_t, void (*)(void), int mode);
 void detachInterrupt(uint8_t);