...
<Board><Device>[Number]_IF_Nbr
<Board>
<Board> | Development board name |
...
<Device> | Network device name (or type) |
[Number] |
...
Network device number for each specific instance of device (optional if the development board does not support multiple instances of the specific device) |
For example, the network device interface number variable for the #2 RS9110 wireless device on an Atmel AT91SAM9263-EK should be named AT91SAM9263-EK_RS9110_2_IF_Nbr
.
Network device interface number variables should be initialized to NET_IF_NBR_NONE
at system initialization prior to being configured by their respective devices.
...