title: Bulk message transfer USB Linux
body: <p>I am at the very beginning to write my own Linux Driver for a dds generator.</p>
  
  <p>I want to write 2 bulk messgages to the generator when der Kernel call the probe function. But I dont know how to call the usb_bulk_msg function. I hope you could me.</p>
  
  <p>hsync</p>
  
  <pre><code>static int dds_probe(struct usb_interface *interface, const struct usb_device_id *id)
  {
  int retval = 0;
  
  retval = usb_bulk_msg();
  
  dev_info(&amp;interface-&gt;dev, "DDS generator is now attached\n");
  return 0;
  }
  </code></pre>