Fixed HardwareSerial setRXInterrupt argument type

Author: timkoers

cores/esp32/HardwareSerial.cpp

@@ -84,7 +84,7 @@ void HardwareSerial::updateBaudRate(unsigned long baud)
 }
 
 // Make sure that the function that the function pointer is pointing to is inside IRAM
-void HardwareSerial::setRXInterrupt(void (*arg)()){
+void HardwareSerial::setRXInterrupt(void (*arg)(char* c)){
     uartDisableInterrupt(_uart);
     uartEnableInterrupt(_uart, &arg);
 }

cores/esp32/HardwareSerial.h

@@ -58,7 +58,7 @@ class HardwareSerial: public Stream
     void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL);
     void end();
     void updateBaudRate(unsigned long baud);
-    void setRXInterrupt(void (*arg)());
+    void setRXInterrupt(void (*arg)(char* c));
     int available(void);
     int availableForWrite(void);
     int peek(void);