2 ms·

Nifty, but my laptop already has LEDs that I don't use, namely numlock and scroll lock. There are many Linux utilities that can blink these and turn these on.

• seabee 16y ago
  In the case of numlock on a laptop you need to be smarter than just toggling the light; many laptops overlay a numpad over the keys, so with numlock enabled hitting 'I' will send 5 instead.
  • joezydeco 16y ago
    You can toggle the lights without changing the actual state of the keyboard or driver. They're not hardwired together.
    • seabee 16y ago
      That's interesting - I tried to do this some years ago on Windows but found no way to toggle the lights independently of the actual state. Turns out you can, though: http://geekhack.org/showwiki.php?title=Island:7031 http://geekhack.org/showwiki.php?title=Island:7031
      • joezydeco 16y ago
        Back in the day I had some kind of plugin that toggled the caps and scroll lights based on ethernet Rx and Tx traffic. Nifty hack, but got distracting real fast.