What might be required to be able to use a labjack in OpenBSD? The U3 
device is recognized as USB generic device

ugen0 at uhub1
port 1 "LabJack LabJack U3" rev 1.10/0.00 addr 2

Would it be sufficient to port the available linux library 
(http://www.labjack.com/labjack_u3_downloads.php) to speak with the 
device through read(2) and write(2) or is a driver needed?

"LabJacks are USB/Ethernet based measurement and automation devices 
which provide analog inputs/outputs, digital inputs/outputs, and more. 
They serve as an inexpensive and easy to use interface between computers 
and the physical world." - http://www.labjack.com/

/Markus