[Add module to admin/config page] http://drupal.stackexchange.com/questions/1757/how-to-add-module-to-admin-config-page-in-drupal-7 http://drupalst.com/blog/add-menu-block-administrator-configuration-page #d7

any.php

/**
 * Implements hook_menu().
 */
function mymodule_menu() {
  $items = array();
  $items['admin/config/mymodule'] = array(
    'title' => 'My configuration section',
    'description' => 'This is the parent item',
    'position' => 'left',
    'weight' => -100,
    'page callback' => 'system_admin_menu_block_page',
    'access arguments' => array('administer site configuration'),
    'file' => 'system.admin.inc',
    'file path' => drupal_get_path('module', 'system'),
  );
  // Need at least one child item before your section will appear.
  $items['admin/config/mymodule/item'] = array(
    'title' => 'First item',
    'description' => 'This is the first child item in the section',
    'page callback' => 'mymodule_item_callback',
    'access arguments' => array('administer site configuration'),
  );
  return $items;
}