public function index(){
  $this->load->view('home');
}

RewriteEngine on
RewriteCond $1 !^(index\.php|resources|robots\.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L,QSA]

<?php

class Some_controller_name extends CI_Controller {

     public function index(){
        $this->load->view('home');
     }
}

application

application > views > home.php