POWER_METER_TRIP_AVERAGE_MAX_IDX
ret = set_trip(res, POWER_METER_TRIP_AVERAGE_MAX_IDX, trip);
if (res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] < 0)
res->trip[POWER_METER_TRIP_AVERAGE_MAX_IDX] * 1000);