Received-SPF: pass (google.com: domain of linux-kernel+bounces-77017-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
Date: Thu, 22 Feb 2024 18:52:40 +0100
From: Pavel Machek <pavel@ucw.cz>
To: Hans de Goede <hdegoede@redhat.com>
Cc: Gregor Riepl <onitake@gmail.com>,
	Werner Sembach <wse@tuxedocomputers.com>,
	Lee Jones <lee@kernel.org>, jikos@kernel.org,
	linux-kernel@vger.kernel.org, Jelle van der Waa <jelle@vdwaa.nl>,
	Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	"dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>,
	linux-input@vger.kernel.org, ojeda@kernel.org,
	linux-leds@vger.kernel.org
Subject: Re: Future handling of complex RGB devices on Linux v2
Message-ID: <ZdeJ6OV6iXTLSfzt@duo.ucw.cz>
References: <9851a06d-956e-4b57-be63-e10ff1fce8b4@tuxedocomputers.com>
 <1bc6d6f0-a13d-4148-80cb-9c13dec7ed32@redhat.com>
 <b70b2ea8-abfd-4d41-b336-3e34e5bdb8c6@tuxedocomputers.com>
 <477d30ee-247e-47e6-bc74-515fd87fdc13@redhat.com>
 <e21a7d87-3059-4a51-af04-1062dac977d2@tuxedocomputers.com>
 <247b5dcd-fda8-45a7-9896-eabc46568281@tuxedocomputers.com>
 <ZdZ2kMASawJ9wdZj@duo.ucw.cz>
 <b6d79727-ae94-44b1-aa88-069416435c14@redhat.com>
 <a21f6c49-2c05-4496-965c-a7524ed38634@gmail.com>
 <825129ea-d389-4c6c-8a23-39f05572e4b4@redhat.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="cyyKuWjF0GZgvTwP"
Content-Disposition: inline
In-Reply-To: <825129ea-d389-4c6c-8a23-39f05572e4b4@redhat.com>


--cyyKuWjF0GZgvTwP
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

Hi!

> For all these reasons the display analogy really is a bit fit for these k=
eyboards
> we tried to come up with a universal coordinate system for these at the b=
eginning
> of the thread and we failed ...

I quite liked the coordinate system proposal. I can propose this:

Vendor maps the keyboard lights to a grid. That would be something
16x8 for thinkpad X220. Then we provide functionality to query "is a
working pixel there" and "what kind of key is at this pixel" -- I
guess we can use input keycodes for that. Multiple pixels can map to
one keycode.

(And then we make best effort to map normal keyboards into similar
grids).

Best regards,
								Pavel
--=20
People of Russia, stop Putin before his war on Ukraine escalates.

--cyyKuWjF0GZgvTwP
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCZdeJ6AAKCRAw5/Bqldv6
8swPAJ0eTXg7THv3YqztC+ECLpHU9tSEOQCghojVjFEBaej133t9yKUV1+jTrdE=
=g5GA
-----END PGP SIGNATURE-----

--cyyKuWjF0GZgvTwP--