XML-RPC Server functions delegation

[eluser]eMSi_113[/eluser]
Hello Everyone,

I'm experiencing problems with setting up the xmlrpc server.
Here's my config:

Code:

$config['functions']['my_class.my_method'] = array('function' => 'my_class.my_method');
$config['object'] = $this;
$this->xmlrpcs->initialize($config);

Now. I have tried creating a controller in controllers folder:

Code:

class challenges extends Controller
{
    function my_method($request) { /* code */ }
}

and library in libraries folder similarily but it looks like CodeIgniter's XMLRPC Server library doesn't delegate the call. From what I looked up in Xmlrpcs.php source code it just does is_callable(array('my_class','my_method') and of course this won't work because my_class isn't loaded while in manual it does say:

your server will load the my_class class and call the my_method function.

Any ideas what I'm doing wrong? Should I autoload the library/controller (and I don't like this idea)?