forum.pistar.uk

Check out this article from DH4FR posted on his Blog Klop.Solutions

https://klop.solutions/terminal-mode-with-icom-ic-705-and-pi-star/

SSH into the PiStar and put the Pi into Read/Write mode.
rpi-rw
Use your favorite editor to modify the UDEV rules as specified in the article.
There are some ...

Make sure your radio is on and the Icom serial cable plugged in to the data port and the USB into the Rpi. Power down the Rpi and when it comes back up you should now be able to chose the Icom terminal mode modem.
73
Ed
AK7AN

This is exactly what I am doing. I have tried it with multiple rpi and ...

I have tried all of the suggestions with no luck. I wonder if anyone has this working with an Icom IC-705.