usky-website/web/application/controllers/admin/main.php

<?php
!defined('BASEPATH') && exit('No direct script access allowed');

class Main extends MY_Admin_Controller
{
    protected $check_access = false;

    public function __construct()
    {
        parent::__construct();

        $this->load->model('admin_model','admin');
        $this->load->model('homepage_model','homepage');
    }

    public function index()
    {
        if(!$this->checkAdminLogin())
        {
            $this->load->view('adminLoginView');    
        } else {
            $items = $this->homepage->all();
            $data['items'] = $items;
            $this->load->view('indexView' , $data);     
        }
    }

    public function add()
    {
        echo 1;
    }

}