MHS TinyCAN plugin does not work

MHS TinyCAN usb-dongle does not work on Qt6.4.2 (MinGW 11.2.0 64bits)... the plugin is recognized and loaded, but no frames are received/transmitted, even when using the original example provided with Qt6.

The same example works fine when using Qt5.15.2 (MinGW 8.1.0) in both 32 and 64bit versions.

Below are some info reported when launching the application with the QT_DEBUG_PLUGINS env variable set.

       Giampaolo

 

---

 

08:37:02: Debugging C:\Qt\Examples\Qt-6.4.2\serialbus\build-can-Desktop_Qt_6_4_2_MinGW_64_bit-Debug\debug\can.exe ...
qt.core.plugin.factoryloader: checking directory path "C:/Qt/6.4.2/mingw_64/plugins/platforms" ...
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/platforms/qdirect2d.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/platforms/qdirect2d.dll, metadata=

[...]

qt.core.plugin.factoryloader: checking directory path "C:/Qt/Examples/Qt-6.4.2/serialbus/build-can-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/debug/accessible" ...
QLayout: Attempting to add QLayout "" to CanBusDeviceInfoBox "deviceInfoBox", which already has a layout
qt.core.plugin.factoryloader: checking directory path "C:/Qt/6.4.2/mingw_64/plugins/canbus" ...
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtpassthrucanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qtpassthrucanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "passthrucan" }

,
"archlevel": 2,
"className": "PassThruCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtpeakcanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qtpeakcanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "peakcan" }

,
"archlevel": 2,
"className": "PeakCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtsysteccanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qtsysteccanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "systeccan" }

,
"archlevel": 2,
"className": "SystecCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qttinycanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qttinycanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "tinycan" }

,
"archlevel": 2,
"className": "TinyCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtvectorcanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qtvectorcanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "vectorcan" }

,
"archlevel": 2,
"className": "VectorCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: looking at "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtvirtualcanbus.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.4.2/mingw_64/plugins/canbus/qtvirtualcanbus.dll, metadata=
{
"IID": "org.qt-project.Qt.QCanBusFactory",
"MetaData":

{ "Key": "virtualcan" }

,
"archlevel": 2,
"className": "VirtualCanBusPlugin",
"debug": false,
"version": 394240
}

qt.core.plugin.factoryloader: Got keys from plugin meta data QList()
qt.core.plugin.factoryloader: checking directory path "C:/Qt/Examples/Qt-6.4.2/serialbus/build-can-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/debug/canbus" ...
qt.core.library: "C:/Qt/6.4.2/mingw_64/plugins/canbus/qtpassthrucanbus.dll" loaded library
qt.core.library: "C:/Qt/6.4.2/mingw_64/plugins/canbus/qttinycanbus.dll" loaded library
onecore\windows\directx\database\helperlibrary\lib\directxdatabasehelper.cpp(818)\directxdatabasehelper.dll!00007FFD1A870150: (caller: 00007FFD1A86F979) ReturnNt(1) tid(4184) C00000BB Richiesta non supportata.
qt.core.plugin.factoryloader: checking directory path "C:/Qt/6.4.2/mingw_64/plugins/accessiblebridge" ...
qt.core.plugin.factoryloader: checking directory path "C:/Qt/Examples/Qt-6.4.2/serialbus/build-can-Desktop_Qt_6_4_2_MinGW_64_bit-Debug/debug/accessiblebridge" ...
qt.core.library: "mhstcan" loaded library