title: undefined reference to `printk'
body: <p>I want to use <code>printk</code> function in my userspace code, but I don't want to write kernel module. Is it any possibility to do that?</p>
  
  <p>I tried use <code>linux/kernel.h</code> header and <code>linux/module.h</code> but it doesn't work</p>
  
  <pre><code>printk("&lt;1&gt;some text");
  </code></pre>