error

[moghulvasa]

ssize_t BufferedSerial::write_unbuffered(const char *buf_ptr, size_t length)
{
while (!_txbuf.empty()) {
tx_irq();
}

for (size_t data_written = 0; data_written < length; data_written++) {
    SerialBase::_base_putc(*buf_ptr++);
}

return length;

}