uhd

        val = SUBDEV_CONN_COMPLEX_IQ;

        return;

    case SUBDEV_PROP_USE_LO_OFFSET:

        val = false;

        return;

    case SUBDEV_PROP_GAIN:

        this->set_gain(val.as<float>(), key.name);

        return;

    case SUBDEV_PROP_FREQ:

        this->set_freq(val.as<double>());

        return;

    default: UHD_THROW_PROP_SET_ERROR();

    }

}