RE: Distinguish, which of the Services triggered the BLE event "Notification enabled"

Patrik — Thu, 16 May 2019 09:46:50 GMT

Could you please give me some hint? It is easy to distinquish which characteristic triggered the BLE event using:

static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
    uint32_t err_code;
    ble_nus_t * p_nus = (ble_nus_t *)p_context;

    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GATTS_EVT_WRITE:
        {
            if(p_ble_evt->evt.gatts_evt.params.write.uuid.uuid == 0x0002)
            {
                //0x0002 is UUID for NUS UART characteristic, so fine it is 
                //filtered
                
                ....some action....
            }break;
    }
}

But in the case of writing to CCCD descriptor, which has the SIG defined UUID = 0x2902, I dont know how to filter from which service was enabled notification.