QLowEnergyController not working

[avrik]

Hi all!
I'm trying to get services from my device.

void BluetoothService::FindDevices() {
    discoveryAgent = new QBluetoothDeviceDiscoveryAgent();

    connect(discoveryAgent, SIGNAL(deviceDiscovered(const QBluetoothDeviceInfo&)), this, SLOT(foundDevice(const QBluetoothDeviceInfo&)));
    connect(discoveryAgent, SIGNAL(error(QBluetoothDeviceDiscoveryAgent::Error)), this, SLOT(deviceScanError(QBluetoothDeviceDiscoveryAgent::Error)));
    connect(discoveryAgent, SIGNAL(finished()), this, SLOT(scanFinished()));
    connect(discoveryAgent, SIGNAL(canceled()), this, SLOT(scanCanseled()));

    qWarning() << "\nStart searshing for devices!";
    discoveryAgent->start();
}

void BluetoothService::foundDevice(const QBluetoothDeviceInfo &info) {
    qWarning() << "Found device: " << info.address() << " " << info.name();
    
    if (info.coreConfigurations() & QBluetoothDeviceInfo::BaseRateAndLowEnergyCoreConfiguration ) {
        qWarning() << "This device is BLE";
        
        if (info.address().toString() == QString("F8:84:F2:0A:DC:3D")){
            qWarning() << "This is our device!";
            CheckServices(info.address());
        }
    }
}

void BluetoothService::CheckServices(QBluetoothAddress address) {
    qWarning() << "Discovering services from device: " << address;
    
    m_control = new QLowEnergyController(address, this);
    connect(m_control, SIGNAL(serviceDiscovered(QBluetoothUuid)),
            this, SLOT(serviceDiscovered(QBluetoothUuid)));
    connect(m_control, SIGNAL(discoveryFinished()),
            this, SLOT(serviceScanDone()));
    connect(m_control, SIGNAL(error(QLowEnergyController::Error)),
            this, SLOT(controllerError(QLowEnergyController::Error)));
    connect(m_control, SIGNAL(connected()),
            this, SLOT(deviceConnected()));
    connect(m_control, SIGNAL(disconnected()),
            this, SLOT(deviceDisconnected()));
    
    m_control->connectToDevice();
}

void BluetoothService::serviceDiscovered(QBluetoothUuid serviceID) {
    qWarning() << "Found service: " << serviceID;
}

void BluetoothService::serviceScanDone() {
    qWarning() << "Service scan done!";
}

void BluetoothService::controllerError(QLowEnergyController::Error) {
    qWarning() << "Controller error!";
}

void BluetoothService::deviceConnected() {
    qWarning() << "Device connected!";
    m_control->discoverServices();
}


void BluetoothService::deviceDisconnected() {
    qWarning() << "Device disconnected!";
}

And then nothing. Slots doesn't calling.

Console output:

Compiled with Qt Version  5.5.0

Start searshing for devices!
Found device:  "F8:84:F2:0A:DC:3D"   "Test Galaxy S5"
This device is BLE
This is our device!
Discovering services from device:  "F8:84:F2:0A:DC:3D"
Found device:  "6F:EE:DC:16:3E:99"   "6F-EE-DC-16-3E-99"
This device is BLE
Found device:  "90:00:DB:30:FC:38"   "Test Galaxy Tab S "
This device is BLE
Scan finished
Wanna restart? (Y/N): n
root@edison:~# Hub
Compiled with Qt Version  5.5.0

Start searshing for devices!
Found device:  "6F:EE:DC:16:3E:99"   "6F-EE-DC-16-3E-99"
This device is BLE
Found device:  "90:00:DB:30:FC:38"   "Test Galaxy Tab S "
This device is BLE
Found device:  "F8:84:F2:0A:DC:3D"   "Test Galaxy S5"
This device is BLE
This is our device!
Trying connect to device:  "F8:84:F2:0A:DC:3D"

[Bass13200]

@avrik I know this post is 10 months old, anyway it might help:

I have rather the same approach as yours, with a difference, when you write:
m_control = new QLowEnergyController(address, this);

you call QLowEnergyController constructor with a BT address, which you retreived earlier from info.address().

On my side, I call like this:
m_control = new QLowEnergyController( info, this );
passing the whole QBluetoothDeviceInfo instead oh just the address.
It works for me

Hope this can help