I'm familiar with how to set a static IP address for my Raspberry Pi's ethernet connection, as described here.
But I want to use a wi-pi wifi dongle, not ethernet.
If I edit etc/network/interfaces so that the entry for the wifi device has a static IP address, then reboot, it doesn't work: the wifi doesn't appear at the address that I specify.
Any ideas of what's going wrong, or how I can fix it, please?
