linux-kernel - Re: Future handling of complex RGB devices on Linux v2

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Message-ID: <ZdZ2kMASawJ9wdZj@duo.ucw.cz>
Date: Wed, 21 Feb 2024 23:17:52 +0100
From: Pavel Machek <pavel@....cz>
To: Werner Sembach <wse@...edocomputers.com>
Cc: Hans de Goede <hdegoede@...hat.com>, Lee Jones <lee@...nel.org>,
	jikos@...nel.org, linux-kernel@...r.kernel.org,
	Jelle van der Waa <jelle@...aa.nl>,
	Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	linux-input@...r.kernel.org, ojeda@...nel.org,
	linux-leds@...r.kernel.org
Subject: Re: Future handling of complex RGB devices on Linux v2

Hi!

> so after more feedback from the OpenRGB maintainers I came up with an even
> more generic proposal:
> https://gitlab.com/CalcProgrammer1/OpenRGB/-/issues/3916#note_1753072869

> >evaluate-set-command ioctl taking:
> >{
> >    enum command                /* one of supported_commands */
> >    union data
> >    {
> >        char raw[3072],
> >        {
> >            <input struct for command 0>
> >        },

Yeah, so ... this is not a interface. This is a backdoor to pass
arbitrary data. That's not going to fly.

For keyboards, we don't need complete new interface; we reasonable
extensions over existing display APIs -- keyboards are clearly 2D.

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

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