device.py 文件源码

def bus_type(self):
        """
        :class:`nidaqmx.constants.BusType`: Indicates the bus type of
            the device.
        """
        val = ctypes.c_int()

        cfunc = lib_importer.windll.DAQmxGetDevBusType
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [
                        ctypes_byte_str, ctypes.POINTER(ctypes.c_int)]

        error_code = cfunc(
            self._name, ctypes.byref(val))
        check_for_error(error_code)

        return BusType(val.value)