Tested by: Andreas Artz on FreeBSD 13 with Logitch G213
g810-led --list-keyboards
```
Device: Logitech - Gaming Keyboard G213
Vendor ID: 046d
Product ID: c336
Serial Number: 178139583932
```
Poudriere: Builds OK on FreeBSD 12.2-Release & FreeBSD 13RC5 (with a harmless warning) (Warning: Bad symlink '/usr/local/bin/g413-led' pointing to an absolute pathname '/usr/local/bin/g810-led')