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From:   Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Date:   Mon, 23 Oct 2023 13:44:46 +0200
Message-ID: <CANiq72kvZcNp2ocXoqBae9q2UW+RPQy3dXUr+QS-izKpM1yyoA@mail.gmail.com>
Subject: Re: Implement per-key keyboard backlight as auxdisplay?
To:     Jani Nikula <jani.nikula@linux.intel.com>
Cc:     Pavel Machek <pavel@ucw.cz>, Lee Jones <lee@kernel.org>,
        linux-kernel@vger.kernel.org,
        Werner Sembach <wse@tuxedocomputers.com>,
        "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>,
        linux-input@vger.kernel.org, ojeda@kernel.org,
        linux-leds@vger.kernel.org
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On Mon, Oct 23, 2023 at 1:40=E2=80=AFPM Jani Nikula <jani.nikula@linux.inte=
l.com> wrote:
>
> One could also reasonably make the argument that controlling the
> individual keyboard key backlights should be part of the input
> subsystem. It's not a display per se. (Unless you actually have small
> displays on the keycaps, and I think that's a thing too.)
>
> There's force feedback, there could be light feedback? There's also
> drivers/input/input-leds.c for the keycaps that have leds, like caps
> lock, num lock, etc.
>
> Anyway, just throwing ideas around, no strong opinions, really.

Yeah, sounds quite reasonable too, in fact it may make more sense
there given the LEDs are associated per-key rather than being an
uniform matrix in a rectangle if I understand correctly. If the input
subsystem wants to take it, that would be great.

Cheers,
Miguel