adtfsm(4) on OpenBSD

The text dc0ff5d7daf5, as OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4 shipped it.

Analog Devices ADT7462 temperature, voltage, and fan sensor