linux-kernel - Re: [patch] added brightness feature to lcd class.

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]

Date:	Sat, 7 Nov 2009 17:48:30 +0100
From:	Pavel Machek <pavel@....cz>
To:	InKi Dae <daeinki@...il.com>
Cc:	linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, Kyungmin Park <kmpark@...radead.org>
Subject: Re: [patch] added brightness feature to lcd class.

On Sat 2009-11-07 21:43:50, InKi Dae wrote:
> Thank you for your comments.
> 
> using backlight is good way in case of TFT-LCD Panel.
> because TFT-LCD Panel needs backlight device to light up.
> 
> but AMOLED LCD Panel doesn't need backlight device because lighting up itself.

I know. So what?

User wants to set brightness. Why should userspace know/care if it is
TFT or AMOLED?

I have this script:

#!/bin/bash
echo $1 > /sys/class/backlight/*/brightness 

why should I have to rewrite it just because you decided amoled is
special?

Kernel is expected to provide hw abstraction...

									Pavel

									
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/