Re: Linux support for a 7 segment LED display

From: Pavel Machek
Date: Mon Feb 19 2024 - 10:35:09 EST


Hi!

> I'm looking for something that I figured must exists but maybe it's so
> niche that no-one has bothered to upstream a driver for it.
>
> I have a requirement to support a 7-segment LED display[1] (one that can
> display a single digit from 0-9). Hardware wise it's just a bunch of
> individual GPIOs connected to each segment (plus an extra one for a
> dot). I can't see anything obvious in drivers/leds but maybe I'm looking
> in the wrong place. Or maybe it's the kind of thing on PC hardware that
> is just driven by the BIOS without the operating system knowing about it.

Look at drivers/auxdisplay. I believe we have segment displays there.

Best regards,
Pavel
--
People of Russia, stop Putin before his war on Ukraine escalates.

Attachment: signature.asc
Description: PGP signature