Function ulDaqDeviceConnectionCode 

pub unsafe extern "C" fn ulDaqDeviceConnectionCode(
    daqDeviceHandle: DaqDeviceHandle,
    code: c_longlong,
) -> UlError

Specifies connection code of a DAQ device. This function must be invoked before ulConnectDaqDevice(). @param daqDeviceHandle the handle to the DAQ device @param code the connection code @return The UL error code.