Identififing usb ports in use by digirig - linux mint

Hi

I’m a returning amateur after a 41 year absence, so please be gentle with me! Less than brilliant hearing and a lot of QRM has pushed me towards exploring digital modes.

So…

  • Icom ic725
  • brand new digirig mobile and rig specific cables
  • usb lead that has data functionality
  • thinpad x240 running linux mint 22.3 cinnamon
  • wsjt-x

My (first?) problem is that I cannot identify the usb ports in use by digirig: I cannot see an unambiguous match between what linux reports, and the options in wsjt-x settings for the ports.

From the above I can see that the laptop finds digirig, but how does this relate to the port options in wsjt-x? Don’t let the above fool you into thinking I am good with terminal. I just type what I am told to!