pub unsafe extern "C" fn DAQmxWriteCtrFreq(
    taskHandle: TaskHandle,
    numSampsPerChan: int32,
    autoStart: bool32,
    timeout: float64,
    dataLayout: bool32,
    frequency: *const float64,
    dutyCycle: *const float64,
    numSampsPerChanWritten: *mut int32,
    reserved: *mut bool32
) -> int32