Just in case someone gets stuck setting up static IP on Kamikaze (like me just now).
Angstrom Linux seems to use connman to manage networking. Editing /etc/network/interfaces is a no go. Manually editing connman’s settings is a no-no.
It should be done through connmanctl. You can run it in interactive mode (neat because it has autocomplete).
Then you can do this:
config --ipv4 manual
You can list services with “services”.