dio_tcsetattr Sets terminal attributes and baud rate for a serial port dio_tcsetattr resourcefd arrayoptions The function dio_tcsetattr sets the terminal attributes and baud rate of the open resource. The currently available options are 'baud' - baud rate of the port - can be 38400,19200,9600,4800,2400,1800,1200,600,300,200,150,134,110,75 or 50, default value is 9600 'bits' - data bits - can be 8,7,6 or 5 default value is 8 'stop' - stop bits - can be 1 or 2 default value is 1 'parity' - can be 0,1 or 2 default value is 0 9600, 'bits' => 8, 'stop' =>1, 'parity' => 0 )); while (1) { $data = dio_read($fd,256); if ($data) { echo $data; } } ?> ]]> This function was introduced in PHP 4.3.0.