Recently a new mechanism to update sensors was introduced in OpenBSD.
Here's a patch that cuts lmtemp(4) over to that new mechanism, such
that it can be used on more platforms. If you own a WRAP board with
an lmtemp(4) sensor, please test the attached patch. You'll need a
very up to date -current tree to be able to build a kernel with this
patch. Please check with "sysctl hw.sensors" whether the sensor value
is still updated correctly.