Mr. Bihlmaier mentioned that there is no support for the sensors on the Jetway J7F2 boards. I have written a driver for the Fintek F71805F found on some of those boards. It is a modification of the LM78 driver (lm78.c) <a href="http://www.oat.com/fintek">here</a>. Several people have used it in 4.2. Since lm78.c hasn't changed for 4.3, this shouldn't need to either.
I do not assert that the code is in a format acceptable to the OpenBSD team. It appears to work and have no significant failings beyond those already present in lm78.c