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problem with QSound : can't find audio device

  • HI,
    I cross-compiled qt5.4 to use it with my a10-olinuxino-lime board.
    I'm trying to run this example that uses QAudioDeviceInfo at my a10-olinuxino-lime board :

    foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput))
        qDebug() << "is null : " << deviceInfo.isNull();
        qDebug() << "device name : " << deviceInfo.deviceName();

    But it shows nothing . it means that the the app can't recognize my sound device, although, the sound is working on the board when I use "speaker-test -t wav -c 2".

    Please, can any one help me ?

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