SetControlLineState
SetControlLineState(newControl);
SetControlLineState(fControlOut);
virtual status_t SetControlLineState(uint16 state);
virtual status_t SetControlLineState(uint16 state);
SetControlLineState(fControlOut);
SetControlLineState(fControlOut);
SetControlLineState(fControlOut);
virtual status_t SetControlLineState(uint16 state);
virtual status_t SetControlLineState(uint16 state);
virtual status_t SetControlLineState(uint16 state);