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Date: Mon, 19 Feb 2024 16:34:51 +0100
From: Pavel Machek <pavel@ucw.cz>
To: Chris Packham <Chris.Packham@alliedtelesis.co.nz>
Cc: "lee@kernel.org" <lee@kernel.org>,
	"linux-leds@vger.kernel.org" <linux-leds@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Linux support for a 7 segment LED display
Message-ID: <ZdN1G6PfCK9/vUol@duo.ucw.cz>
References: <1f598a72-dd9f-4c6c-af7f-29751f84bd23@alliedtelesis.co.nz>
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Hi!

> I'm looking for something that I figured must exists but maybe it's so=20
> niche that no-one has bothered to upstream a driver for it.
>=20
> I have a requirement to support a 7-segment LED display[1] (one that can=
=20
> display a single digit from 0-9). Hardware wise it's just a bunch of=20
> individual GPIOs connected to each segment (plus an extra one for a=20
> dot). I can't see anything obvious in drivers/leds but maybe I'm looking=
=20
> in the wrong place. Or maybe it's the kind of thing on PC hardware that=
=20
> 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
--=20
People of Russia, stop Putin before his war on Ukraine escalates.

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