A specification does exist, see https://launchpad.net/distros/ubuntu/+spec/fingerprint-authentication and https://wiki.ubuntu.com/FingerprintAuthentication .
-- Edgy should include 'bioapi' to support fingerprint readers https://launchpad.net/bugs/54816 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs