diff options
Diffstat (limited to 'cores/arduino/HardwareSerial.cpp')
| -rw-r--r-- | cores/arduino/HardwareSerial.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/cores/arduino/HardwareSerial.cpp b/cores/arduino/HardwareSerial.cpp index 1b1fa71..f40ddee 100644 --- a/cores/arduino/HardwareSerial.cpp +++ b/cores/arduino/HardwareSerial.cpp @@ -46,8 +46,8 @@ struct ring_buffer { unsigned char buffer[SERIAL_BUFFER_SIZE]; - volatile int head; - volatile int tail; + volatile unsigned int head; + volatile unsigned int tail; }; #if defined(USBCON) @@ -398,6 +398,10 @@ size_t HardwareSerial::write(uint8_t c) return 1; } +HardwareSerial::operator bool() { + return true; +} + // Preinstantiate Objects ////////////////////////////////////////////////////// #if defined(UBRRH) && defined(UBRRL) |