How do I allow automatic non root access to my non standard USB device ?

[Muayyad AlSadi]

in the past it was something in /etc/udev/rules.d/

but I don't now know what does that

if it's like in the past a file with
SYSFS{idVendor}=="XXXX", SYSFS{idProduct}=="YYYY", MODE="666", GROUP="mygroup"

don't do that, I don't know what it will do
I'm just shed some light into some dark corner