On Thu, Feb 29, 2024 at 12:48:46PM +0000, mohamed.rayan@xxxxxxxxxxx wrote: > Hello Mike, > > Thanks for your reply, > > Yes, I see a problem in my case, because When " tb_cfg_get_upstream_port", " upstream_port" variable gets updated with wrong value not the actual "upstream port" corresponding value in the Router configuration space of the USB4 host controller. Can you share full dmesg with thunderbolt.dyndbg=+p in the command line so we can take a look?