> > So, would it be meaningfull to change all the others to NODEV too ? You are beeing anal or what ? :) Who cares about that legacy driver in 2.4 anyway :) If you really want, I suppose the failure on request_region could return -EBUSY, not sure about the best error to return from failures on request_irq... Nobody really cares about those codes though. At least not in this driver. Ben.