src/PhpSerial.php
public function deviceSet($device)
    {
        if ($this->_dState !== SERIAL_DEVICE_OPENED) {
            if ($this->_os === "linux") {
                if (preg_match("@^COM(\\d+):?$@i", $device, $matches)) {
                    $device = "/dev/ttyS" . ($matches[1] - 1);
                }

                if ($this->_exec("stty -F " . $device) === 0) {
                    $this->_device = $device;
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            } elseif ($this->_os === "osx") {
                if ($this->_exec("stty -f " . $device) === 0) {
                    $this->_device = $device;
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            } elseif ($this->_os === "windows") {
                if (preg_match("@^COM(\\d+):?$@i", $device, $matches)
                        and $this->_exec(
                            exec("mode " . $device . " xon=on BAUD=9600")
                        ) === 0
                ) {
                    $this->_winDevice = "COM" . $matches[1];
                    $this->_device = "\\.com" . $matches[1];
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            }

            trigger_error("Specified serial port is not valid", E_USER_WARNING);

            return false;
        } else {
            trigger_error("You must close your device before to set an other " .
                          "one", E_USER_WARNING);

            return false;
        }
    }
public function deviceSet($device)
    {
        if ($this->_dState !== SERIAL_DEVICE_OPENED) {
            if ($this->_os === "linux") {
                if (preg_match("@^COM(\\d+):?$@i", $device, $matches)) {
                    $device = "/dev/ttyS" . ($matches[1] - 1);
                }

                if ($this->_exec("stty -F " . $device) === 0) {
                    $this->_device = $device;
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            } elseif ($this->_os === "osx") {
                if ($this->_exec("stty -f " . $device) === 0) {
                    $this->_device = $device;
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            } elseif ($this->_os === "windows") {
                if (preg_match("@^COM(\\d+):?$@i", $device, $matches)
                        and $this->_exec(
                            exec("mode " . $device . " xon=on BAUD=9600")
                        ) === 0
                ) {
                    $this->_winDevice = "COM" . $matches[1];
                    $this->_device = "\\.com" . $matches[1];
                    $this->_dState = SERIAL_DEVICE_SET;

                    return true;
                }
            }

            trigger_error("Specified serial port is not valid", E_USER_WARNING);

            return false;
        } else {
            trigger_error("You must close your device before to set an other " .
                          "one", E_USER_WARNING);

            return false;
        }
    }
public function deviceSet ( $ device ) { if ( $ this -> _dState !== SERIAL_DEVICE_OPENED ) { if ( $ this -> _os === "linux" ) { if ( preg_match ( "@^COM(\\d+):?$@i" , $ device , $ matches ) ) { $ device = "/dev/ttyS" . ( $ matches [ 1 ] - 1 ) ; } if ( $ this -> _exec ( "stty -F " . $ device ) === 0 ) { $ this -> _device = $ device ; $ this -> _dState = SERIAL_DEVICE_SET ; return true ; } } elseif ( $ this -> _os === "osx" ) { if ( $ this -> _exec ( "stty -f " . $ device ) === 0 ) { $ this -> _device = $ device ; $ this -> _dState = SERIAL_DEVICE_SET ; return true ; } } elseif ( $ this -> _os === "windows" ) { if ( preg_match ( "@^COM(\\d+):?$@i" , $ device , $ matches ) and $ this -> _exec ( exec ( "mode " . $ device . " xon=on BAUD=9600" ) ) === 0 ) { $ this -> _winDevice = "COM" . $ matches [ 1 ] ; $ this -> _device = "\\.com" . $ matches [ 1 ] ; $ this -> _dState = SERIAL_DEVICE_SET ; return true ; } } trigger_error ( "Specified serial port is not valid" , E_USER_WARNING ) ; return false ; } else { trigger_error ( "You must close your device before to set an other " . "one" , E_USER_WARNING ) ; return false ; } }
Device set function : used to set the device name/address.
-> linux : use the device address, like /dev/ttyS0
-> osx : use the device address, like /dev/tty.serial
-> windows : use the COMxx device name, like COM1 (can also be used
with linux)

@param  string $device the name of the device to be used
@return bool
Device set function : used to set the device name / address . - > linux : use the device address like / dev / ttyS0 - > osx : use the device address like / dev / tty . serial - > windows : use the COMxx device name like COM1 ( can also be used with linux )