DEV_GET_BY_INDEX(9) Network device support DEV_GET_BY_INDEX(9)
NAME dev_get_by_index - find a device by its ifindex
SYNOPSIS struct net_device * dev_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.
COPYRIGHT Kernel Hackers Manual 2.6. November 2013 DEV_GET_BY_INDEX(9)