On Tue, 2020-12-15 at 22:20 +0100, Marc Kleine-Budde wrote:
> You can sniff the USB traffic with wireshark...
> 
> https://wiki.wireshark.org/CaptureSetup/USB

Yeah. The mentioned last can_frame is never sent. I am not that aware
of the usb protocol and I am currently not able to parse what is
actually happening after frame No. 259 in the attached pcap.
Nevertheless, it never sends the "25 FF".

Stefan