If you are debugging a board using the Atmel ICE debugger with OpenOCD, you may want a udev rule so you don’t have to run commands as root.
This was the incantation that worked for me. I added the file /etc/udev/rules.d/42-openocd.rules
with the following contents:
ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2141", ACTION=="add", MODE="0666", GROUP="plugdev" KERNEL=="hidraw*", ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2111", MODE="666", GROUP="plugdev"
Then, reload your rules with:
sudo udevadm control --reload-rules
Unplug and plug back in the debugger and you should be able to enjoy non-root debugging.