@MrShawn said in Cannot load library libsocketcan, some functionality will not be available:

Did you try read/write on the canbus? I remember seeing this issue and it still worked and was able to do everything I wanted to on the CANbus.

Read/write OK. Worked.

@rejuce

Libsocketcan is still optional, but gives additional functions, as stated here: https://doc.qt.io/qt-5/qtserialbus-socketcan-overview.html

If you don't use that, you can safely ignore the warning. But if you install the libsocketcan library, that's fine too.

Regards

@J-Hilk

A colleague of mine tried the 5.12.4, but the error is still there. I'll try with the QQuickPaintedItem or I'll switch to the 5.14.

Thanks for your time.

@Saman19 said in Qt on MarsBoard, Cross compile error, Socket can fd:

Note: QtSerialBus: Newer kernel needed for flexible data-rate frame support (canfd_frame).

It does not seem to me a problem but an informative note.

If you do not use CAN, check:

Is Kernel Network CAN enabled? Something like: Networking support ---> <M> CAN bus subsystem support ---> --- CAN bus subsystem support <M> Raw CAN Protocol (raw access with CAN-ID filtering) <M> Broadcast Manager CAN Protocol (with content filtering) CAN Device Drivers ---> <M> Virtual Local CAN Interface (vcan) <M> Platform CAN drivers with Netlink support

Mandatory, because under the kernel is the SocketCAN that handles this.

Install the can-utils package

It is necessary to include / install QtSerialPort, not for CAN but for ModBus that is part of QtSerialBus.

Cleiton Bueno

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