/**
* Enqueue a transfer descriptor.
*/
-u8 hcdi_enqueue(const usb_transfer_descriptor *td);
+u8 hcdi_enqueue(const struct usb_transfer_descriptor *td);
/**
* Remove an transfer descriptor from transfer queue.
*/
-u8 hcdi_dequeue(usb_transfer_descriptor *td);
+u8 hcdi_dequeue(struct usb_transfer_descriptor *td);
void hcdi_fire(void);