usb_free_urb
Name
usb_free_urb -- frees the memory used by a urb
Synopsis
void usb_free_urb (struct urb* urb);
Arguments
urb pointer to the urb to free
Description
If an urb is created with a call to usb_create_urb it should be
cleaned up with a call to usb_free_urb when the driver is finished
with it.