pmbus_add_sensor_attrs
ret = pmbus_add_sensor_attrs(client, data, "in", voltage_attributes,
ret = pmbus_add_sensor_attrs(client, data, "curr", current_attributes,
ret = pmbus_add_sensor_attrs(client, data, "power", power_attributes,
ret = pmbus_add_sensor_attrs(client, data, "temp", temp_attributes,