Hello, The udev rules file starts with the following: # skip actual unified devices, only consider the receiver DRIVERS=="logitech-djdevice", GOTO="not_unify_recv" For what I understand only the permissions of reciver should be modified But for what I can see, the permissions of the hidraw device of my mouse are also modified: $ ls -la /dev/hidraw* [...] crw-rw----+ 1 root root 248, 3 13 avr 10:15 /dev/hidraw3 crw-rw----+ 1 root root 248, 4 13 avr 10:15 /dev/hidraw4 [259919.846547] logitech-djreceiver 0003:046D:C52B.0034: hiddev0,hidraw3: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:14.0-1.1.4/input2 [259919.976009] logitech-hidpp-device 0003:046D:101A.0035: input,hidraw4: USB HID v1.11 Mouse [Logitech Performance MX] on usb-0000:00:14.0-1.1.4/input2:2 So that doesn't seem to be right. When running udevadm info on the two devices, I don't see the driver being displayed, so I think that the matching based on the driver is not working. Kind regards, Laurent Bigonville