write_serial — Write to a serial connection.
write_serial( : : SerialHandle, Data : )
write_serial writes the characters given in Data to
the serial device given by SerialHandle. The data to be
written is passed as a tuple of integers. This allows to write NUL
characters, which would otherwise be interpreted as the end of a
string. write_serial always waits until all data has been
transmitted, i.e., a timeout for writing cannot be set.
SerialHandle (input_control) serial → (handle)
Serial interface handle.
Data (input_control) integer(-array) → (integer)
Characters to write (as tuple of integers).
If the parameters are correct and the write to the device was
successful, the operator write_serial returns the value 2 (H_MSG_TRUE).
Otherwise an exception is raised.
Foundation