usb_hcd_unmap_urb_setup_for_dma
EXPORT_SYMBOL_GPL(usb_hcd_unmap_urb_setup_for_dma);
usb_hcd_unmap_urb_setup_for_dma(hcd, urb);
extern void usb_hcd_unmap_urb_setup_for_dma(struct usb_hcd *, struct urb *);