4 void NullSerial::begin(uint16_t baud_count)
8 void NullSerial::end(void)
12 void NullSerial::accept(void)
16 int NullSerial::available(void)
21 int NullSerial::peek(void)
26 int NullSerial::read(void)
31 void NullSerial::flush(void)
35 size_t NullSerial::write(uint8_t c)
40 NullSerial::operator bool() {