Name
dev_get_by_index — 
     find a device by its ifindex
 
Synopsis
| struct net_device * fsfuncdev_get_by_index ( | struct net * net, | 
|  | int ifindex ); | 
 
Arguments
- net
- 
     the applicable net namespace
     
- ifindex
- 
     index of device
     
Description
   Search for an interface by index. Returns NULL if the device
   is not found or a pointer to the device. The device returned has
   had a reference added and the pointer is safe until the user calls
   dev_put to indicate they have finished with it.