RE: [PATCH v2] leds: ledtrig-morse: send out morse code

From: David Laight
Date: Thu Jul 05 2018 - 06:55:19 EST


...
> > Well, just like we have LED and LED triggers in the kernel, I think having
> > a generic way to use patterns could be nice and in this case Morse could be
> > one such pattern, but if that means it's limited to userland to configure
> > it then it sadly voids all of its benefits.

I've been involved in a system that used morse for short error messages.
Unless you actually know morse it is completely hopeless.

With two leds next to each other you should be able to generate
a lot of easily identifiable patterns by repeating separate 4-bit
patterns (in sync) on both leds (at about 2Hz update).

David