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dio_tcsetattr

PHP function Edit on GitHub ✎

(PHP 4 >= 4.3.0, PHP 5 < 5.1.0)

Sets terminal attributes and baud rate for a serial port

Description

dio_tcsetattr(resource $fd, array $options): bool

dio_tcsetattr() sets the terminal attributes and baud rate of the open fd.

Parameters

fd

The file descriptor returned by dio_open().

options

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.

Return Values

Void

Examples

Setting the baud rate on a serial port

php
<?php

$fd = dio_open('/dev/ttyS0', O_RDWR | O_NOCTTY | O_NONBLOCK);

dio_fcntl($fd, F_SETFL, O_SYNC);

dio_tcsetattr($fd, array(
    'baud' => 9600,
    'bits' => 8,
    'stop'  => 1,
    'parity' => 0
)); 

while (true) {
    $data = dio_read($fd, 256);
    if ($data !== null && $data !== '') {
        echo $data;
    }
} 

?>

Notes No-windows

Source: reference/dio/functions/dio-tcsetattr.xml · from the official PHP manual (php/doc-en)