public function deviceClose()
    {
        if ($this->_dState !== SERIAL_DEVICE_OPENED) {
            return true;
        }

        if (fclose($this->_dHandle)) {
            $this->_dHandle = null;
            $this->_dState = SERIAL_DEVICE_SET;

            return true;
        }

        trigger_error("Unable to close the device", E_USER_ERROR);

        return false;
    }
public function deviceClose()
    {
        if ($this->_dState !== SERIAL_DEVICE_OPENED) {
            return true;
        }

        if (fclose($this->_dHandle)) {
            $this->_dHandle = null;
            $this->_dState = SERIAL_DEVICE_SET;

            return true;
        }

        trigger_error("Unable to close the device", E_USER_ERROR);

        return false;
    }
public function deviceClose ( ) { if ( $ this -> _dState !== SERIAL_DEVICE_OPENED ) { return true ; } if ( fclose ( $ this -> _dHandle ) ) { $ this -> _dHandle = null ; $ this -> _dState = SERIAL_DEVICE_SET ; return true ; } trigger_error ( "Unable to close the device" , E_USER_ERROR ) ; return false ; }
Closes the device

@return bool
Closes the device