[eluser]ortwin.van.vessem[/eluser]
Ensure you have loaded the helper class in the autload.php or in the controller and use it like below in your controller.
Code:
$string = "Line 1 \nLine2";
$data['string'] = $this->typography->auto_typography($string);
$this->load->view('view', $data);
In the view you can use the variable $string.