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

[Geert Uytterhoeven]

Hi Willy,

On Wed, Jul 4, 2018 at 4:41 AM Willy Tarreau <w@xxxxxx> wrote:
> On Tue, Jul 03, 2018 at 09:43:06PM +0300, Andy Shevchenko wrote:
> Well, in this case it's even possible to go further and avoid storing
> 36 strings. Indeed, no representation is longer than 5 symbols, so you
> can use 5 bits for the encoding (0=".", 1="-") and 3 bits for the
> length, it gives you a single byte per character instead of a pointer
> to a string plus 6 chars. Then in order to make it readable, 5 macros
> can be provided to emit the code :

And using the scheme from
https://plus.google.com/u/0/117536210417097546339/posts/hvctn17WUZu
you can store up to 7 symbols in a single byte, which you need when going
beyond plain alphanumeric:

-0111111
--011111
---01111
----0111
-----011
------01
-------0

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds