From patchwork Fri Aug 28 12:56:43 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin Chary X-Patchwork-Id: 44497 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n7SD3j23008656 for ; Fri, 28 Aug 2009 13:03:59 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751160AbZH1NDz (ORCPT ); Fri, 28 Aug 2009 09:03:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751090AbZH1NDz (ORCPT ); Fri, 28 Aug 2009 09:03:55 -0400 Received: from smtp22.services.sfr.fr ([93.17.128.12]:61345 "EHLO smtp22.services.sfr.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751166AbZH1NDm (ORCPT ); Fri, 28 Aug 2009 09:03:42 -0400 Received: from smtp22.services.sfr.fr (msfrf2206 [10.18.26.20]) by msfrf2210.sfr.fr (SMTP Server) with ESMTP id 1EB4B7002538 for ; Fri, 28 Aug 2009 15:03:43 +0200 (CEST) Received: from filter.sfr.fr (localhost [127.0.0.1]) by msfrf2206.sfr.fr (SMTP Server) with ESMTP id DF276700009D; Fri, 28 Aug 2009 14:57:44 +0200 (CEST) Received: from localhost.localdomain (224.96.81-79.rev.gaoland.net [79.81.96.224]) by msfrf2206.sfr.fr (SMTP Server) with ESMTP id 717D8700008E; Fri, 28 Aug 2009 14:57:44 +0200 (CEST) X-SFR-UUID: 20090828125744464.717D8700008E@msfrf2206.sfr.fr From: Corentin Chary To: lenb@kernel.org Cc: linux-acpi@vger.kernel.org, alan-jenkins@tuffmail.co.uk, Corentin Chary Subject: [PATCH 12/24] video/backlight: document sysfs interface Date: Fri, 28 Aug 2009 14:56:43 +0200 Message-Id: <1251464215-6540-13-git-send-email-corentincj@iksaif.net> X-Mailer: git-send-email 1.6.4 In-Reply-To: <1251464215-6540-12-git-send-email-corentincj@iksaif.net> References: <1251464215-6540-1-git-send-email-corentincj@iksaif.net> <1251464215-6540-2-git-send-email-corentincj@iksaif.net> <1251464215-6540-3-git-send-email-corentincj@iksaif.net> <1251464215-6540-4-git-send-email-corentincj@iksaif.net> <1251464215-6540-5-git-send-email-corentincj@iksaif.net> <1251464215-6540-6-git-send-email-corentincj@iksaif.net> <1251464215-6540-7-git-send-email-corentincj@iksaif.net> <1251464215-6540-8-git-send-email-corentincj@iksaif.net> <1251464215-6540-9-git-send-email-corentincj@iksaif.net> <1251464215-6540-10-git-send-email-corentincj@iksaif.net> <1251464215-6540-11-git-send-email-corentincj@iksaif.net> <1251464215-6540-12-git-send-email-corentincj@iksaif.net> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Date and KernelVersion may be wrong because the backlight interface was introduced before git initial import. Cc:Richard Purdie Signed-off-by: Corentin Chary --- Documentation/ABI/stable/sysfs-class-backlight | 36 ++++++++++++++++++++++++ 1 files changed, 36 insertions(+), 0 deletions(-) create mode 100644 Documentation/ABI/stable/sysfs-class-backlight diff --git a/Documentation/ABI/stable/sysfs-class-backlight b/Documentation/ABI/stable/sysfs-class-backlight new file mode 100644 index 0000000..4d637e1 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-backlight @@ -0,0 +1,36 @@ +What: /sys/class/backlight//bl_power +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie +Description: + Control BACKLIGHT power, values are FB_BLANK_* from fb.h + - FB_BLANK_UNBLANK (0) : power on. + - FB_BLANK_POWERDOWN (4) : power off +Users: HAL + +What: /sys/class/backlight//brightness +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie +Description: + Control the brightness for this . Values + are between 0 and max_brightness. This file will also + show the brightness level stored in the driver, which + may not be the actual brightness (see actual_brightness). +Users: HAL + +What: /sys/class/backlight//actual_brightness +Date: March 2006 +KernelVersion: 2.6.17 +Contact: Richard Purdie +Description: + Show the actual brightness by querying the hardware. +Users: HAL + +What: /sys/class/backlight//max_brightness +Date: April 2005 +KernelVersion: 2.6.12 +Contact: Richard Purdie +Description: + Maximum brightness for . +Users: HAL