The FreeBSD DAQ project develops open-source drivers, tools, and libraries for data acquisition.
PBMaster is a software implementation of Profibus. The objective is to spread the use of the standard also in low-cost applications by using common hardware and open-source software. Please visit http://www.pbmaster.org for more information.
It is Drivers, utils and tools for Open Hardware Project watchdog timer by www.openhardware.ru.