Allow access to USB device

I have hid USB relay
/dev/usb/hiddev0

I’m using custom binary usb-hid-relay to control relays, but I have no access to that USB device.
How I can grant access to it?

Same problem
I think it will be usefull to have some tuto to install and use usb-relay-hid on home assist
(GitHub - pavel-a/usb-relay-hid: Software for USB-connected relays with HID interface. See the WIKI for more info.)