title: Will sdio_register_driver() creatre a device name?
body: <p>I read code like below. Is a device name "my_sdio" created in /dev after sdio_register_driver() or after my_sdio_probe() is called? If neither of them, when is the device name created? </p>
  
  <pre><code>static struct sdio_driver my_sdio_driver = {
     .name    = "my_sdio",
     .id_table = my_sdio_ids,
     .probe   = my_sdio_probe,
     .remove  = my_sdio_remove,
  };
  
  sdio_register_driver(&amp;my_sdio_driver);
  </code></pre>