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By: a guest on May 6th, 2010  |  syntax: None  |  size: 1.06 KB  |  views: 143  |  expires: Never
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  1. case USB_INSERTED:
  2.                 /* inject an event into the button queue so the main thread
  3.                  * will run the USB-UI code and return after the desired
  4.                  * drivers are enabled */
  5.                 queue_send(&button_queue, SYS_USB_ATTACHED, NULL);
  6.                 usb_state = USB_POWERED;
  7. #ifdef HAVE_USBSTACK
  8.                 /* Check any drivers enabled at this point for exclusive storage
  9.                  * access requirements. */
  10.                 exclusive_storage_access = usb_core_any_exclusive_storage();
  11.  
  12.                 if(!exclusive_storage_access)
  13.                 {
  14.                     usb_attach();
  15.                     break;
  16.                 }
  17. #endif /* HAVE_USBSTACK */
  18.                 /* Tell all threads that they have to back off the storage.
  19.                    We subtract one for our own thread. */
  20.                 num_acks_to_expect = queue_broadcast(SYS_USB_CONNECTED, 0) - 1;
  21.                 DEBUGF("USB inserted. Waiting for ack from %d threads...\n",
  22.                        num_acks_to_expect);
  23.                 break;
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