Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Construct and open a serial_port.

serial_port(
    boost::asio::io_context & io_context,
    const char * device);

This constructor creates and opens a serial port for the specified device name.

io_context: The io_context object that the serial port will use to dispatch handlers for any asynchronous operations performed on the port.
device: The platform-specific device name for this serial port.