⁠J2534 device not detected in GUI selection window⁠

[mordHun]

The application does not detect or list my connected J2534 PassThru interface (TOPDON RLink) in the selection window.
Is there any known fix, workaround, or plugin required to make J2534 / PassThru devices appear and work in this version?

[Maxaubert]

DDT4ALL has no J2534 / PassThru support, so there is nothing to detect. No plugin, setting or workaround exists in this version.

The app talks to the car through an ELM327-style serial adapter (AT commands over a COM port), plus a few USB CAN devices. A J2534 device like the TOPDON RLink is driven through a vendor DLL (PassThruOpen, PassThruConnect and so on), and DDT4ALL never loads or calls any of that. A search of the current source for "j2534" or "passthru" finds nothing, and the README's supported devices list contains only ELM327-style serial adapters and similar serial/USB CAN devices, no J2534 interfaces: https://github.com/cedricp/ddt4all/blob/d05e06087f51b858cf9fd5802a507f2c3f79ddf0/README.md#supported-devices

The maintainer was asked about this earlier and said it is not supported: #146

So you need either an ELM327-compatible adapter (OBDLink SX/EX, Vlinker FS, VGate iCar Pro and similar), or software that speaks J2534, such as the tool your RLink came with.