From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [patch] added brightness feature to lcd class. Date: Thu, 5 Nov 2009 20:27:25 +0100 Message-ID: <20091105192725.GE1392@ucw.cz> References: <90b950fc0911020050q3bc3fae8j954ec6ed73d79b5@mail.gmail.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <90b950fc0911020050q3bc3fae8j954ec6ed73d79b5@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: InKi Dae Cc: linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Kyungmin Park On Mon 2009-11-02 17:50:02, InKi Dae wrote: > This patch adds brightness feature to lcd class. > (kernel/driver/video/backlight/lcd.c) > > In the past, most of the lcd panels for embedded system was TFT-LCD > Panel needing backlight device. > But now AMOLED LCD Panel appeared so we should consider brightness > control for AMOLED Panel. > > For the time being, I used backlight fake driver for brightness > control of AMOLED LCD Panel. > But this way is not good, so I propose to add brightness feature to lcd class. > Why is it 'not good'? Using backlight driver seems like way to go to me. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html