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  1. Qt
  2. QTBUG-74513

Cannot flush QBluetoothSocket or specify message length in RFCOMM

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    • Platform/s:
      All
    • Commits:
      545b282d6d4a3c66e00c41ffd83c1a69f6fd0ad2 (qt/qtconnectivity/5.12)

      Description

      I'm developing a Qt application on Linux that uses a classical Bluetooth server via RFCOMM to communicate with an Android 5.1 device.

      As it turns out, this specific Android 5.1 device has a bug in the RFCOMM parser which makes it impossible to decode messages longer than 127 bytes.

      Therefore, I wish that I could specify in Qt a maximal message length of 127 bytes or have the option to flush the QBluetoothSocket and implement the buffer myself.

      As far as I know, this is not possible right now:

      1. There is of course no flush in QIODevice
      2. The buffer size in qbluetoothsocket_bluez.cpp is currently hard-coded to be 1024 bytes.
      3. QBluetoothServer just provides an instantiated QBluetoohSocket and there is no way to open the connection as QIODevice::Unbuffered.

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            Assignee:
            ablasche Alex Blasche
            Reporter:
            stabbles Harmen Stoppels
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              Updated:
              Resolved:

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