linux-kernel - Re: [PATCH] leds: rgb: Implement per-key keyboard backlight for several TUXEDO devices

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Message-ID: <ZSk16iTBmZ2fLHZ0@duo.ucw.cz>
Date:   Fri, 13 Oct 2023 14:19:54 +0200
From:   Pavel Machek <pavel@....cz>
To:     Werner Sembach <wse@...edocomputers.com>
Cc:     Lee Jones <lee@...nel.org>, linux-kernel@...r.kernel.org,
        linux-leds@...r.kernel.org
Subject: Re: [PATCH] leds: rgb: Implement per-key keyboard backlight for
 several TUXEDO devices

Hi!

> Every multi_zone_* mode could also output a zones_image. That is a greyscale
> bitmap or even a svg containing the information where each zone is located
> and which outline it has. For the bitmap the information would be encoded in
> the grey value, aka 0 = zone 0 etc with 0xff = no zone (i.e. space between
> the keys). For the svg, the name of the paths would indicate the
> zone they

This is not really suitable for kernel.

> > It would go to drivers/auxdisplay, most probably.
> 
> Looking into it, thanks for the direction. But this would come with the
> downside that upowers kbd_brightness no longer controls the keyboard.

Yep. We could add some kind of kludge to fix that.

Perhaps first question is to ask auxdisplay people if treating
keyboard as a weird display is okay? cc: lkml, leds, drm, input at
least.

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

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