basic_serial_port on an existing
native serial port.
basic_serial_port( const executor_type & ex, const native_handle_type & native_serial_port);
This constructor creates a serial port object to hold an existing native serial port.
The I/O executor that the serial port will use, by default, to dispatch handlers for any asynchronous operations performed on the serial port.
A native serial port.
Thrown on failure.