/* Send an unread alert notification to the given category. */
static int ble_svc_ans_unr_alert_notify(uint8_t cat_id)
/* Send an unread alert notification to the given category. */
static int ble_svc_ans_unr_alert_notify(uint8_t cat_id)
{
    ble_svc_ans_unr_alert_stat[0] = cat_id;
    ble_svc_ans_unr_alert_stat[1] = ble_svc_ans_unr_alert_cnt[cat_id];
    return ble_gattc_notify(ble_svc_ans_conn_handle,
                            ble_svc_ans_unr_alert_val_handle);
}