static int set_light_notifications(struct light_device_t* dev,
            struct light_state_t const* state)
{
    if (state->flashOnMS == 0 && state->flashOffMS == 0)
    return;

    int brightness =  rgb_to_brightness(state);
    int v = 0;
    int ret = 0;
    pthread_mutex_lock(&g_lock);

    if (brightness+state->color == 0 || brightness > 100) {
        if (state->color & 0x00ffffff)
            v = 1;
    } else
        v = 0;

    LOGI("color %u fm %u status %u is lit %u brightness", state->color, state->flashMode, v, (state->color & 0x00ffffff), brightness);
    ret = write_int(LED_FILE, v);
    pthread_mutex_unlock(&g_lock);
    return ret;
}