"Jan-Rixt Van Hoye" <janvanhoye@xxxxxxxxxx> wrote: > Yes I've searched all along the net to make it possible, but I didn't > find > anything. I know now that it would be better to write a device driver > for > the fan and then make a little program that uses this driver. It is > not > easy for a newbie, but I'm happy that the community helps. I only partially agree with Michael here: of course, the clean solution is to use a kernel driver - that will guarantee you compatibility with future versions of the BeOS. *But* for testing purposes, and for the initial development stage (proof-of-concept, etc.) it's great to be able to do that stuff in a userland application. Bye, Axel.