My CI2 app is using the wiredesigns modular layout.
I have a two modules called item and product in a a folder called modules like so:
/application
/modules
/item
/product
In Item I have a controller called item which starts like this.
class Item extends MX_Controller
{
//code here
}
What do I need to do to make my products controller extend my item controller in a different module
My guess is you are trying to keep your code "DRY" (http://en.wikipedia.org/wiki/Don't_repeat_yourself) which in CI means using a common controller like a My_Controller (see: http://ellislab.com/codeigniter/user-guide/general/core_classes.html).
Check out Phil Sturgeon's take: http://philsturgeon.co.uk/blog/2010/02/CodeIgniter-Base-Classes-Keeping-it-DRY.