### find ledger usb vendor and product id's
```
$ lsusb
...
Bus 001 Device 018: ID 2c97:0001
...
```

### check if ledger is not yet in correct group "plugdev"
```
$ ls -al /dev/bus/usb/001/018
crw-rw-r-- 1 root root 189, 15 Sep  4 14:30 /dev/bus/usb/001/016
```

### add new udev rule
```
$ sudo vi /etc/udev/rules.d/51-ledger.rules
SUBSYSTEM=="usb", ATTR{idVendor}=="2c97", ATTR{idProduct}=="0001 MODE="0666", GROUP="plugdev"
```

### reload rules
```
$ sudo udevadm control --reload-rules
```

### replug your ledger and your done