Name
rio_unregister_driver — 
     unregister a RIO driver
 
Synopsis
| void rio_unregister_driver ( | struct rio_driver * rdrv ); | 
 
Arguments
- rdrv
- 
     the RIO driver structure to unregister
     
Description
   Deletes the struct rio_driver from the list of registered RIO
   drivers, gives it a chance to clean up by calling its remove
   function for each device it was responsible for, and marks those
   devices as driverless.