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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <28af2d0a-191d-4496-95de-b4243adc9112@tuxedocomputers.com>
Date:   Fri, 13 Oct 2023 16:38:54 +0200
From:   Werner Sembach <wse@...edocomputers.com>
To:     Pavel Machek <pavel@....cz>
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,

Am 13.10.23 um 14:19 schrieb Pavel Machek:
> 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.
Yeah thought as much
>
>>> 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.

On it

But i don't know how to implement the different hardware effect modes then.

>
> Best regards,
> 								Pavel