Accessing controller variables in the viewer

[eluser]dedavai[/eluser]
I'm having trouble accessing variables created inside the controller from within the viewer. For example, inside the controller (home.php) I have the following:

Code:

function view() {
...
$sub = false;
$this->load->view('home_view');
}

and inside the view file (home_view.php) I have

Code:

<input type="text" name="cp" value="<?=($sub ? "CP value" : "");?>">

However, the $sub never makes it from the controller to the viewer. Is there a special way to reference the variables ?