From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaron Lu Subject: [PATCH 1/3] ACPI / video: add description for brightness_switch_enabled Date: Thu, 20 Jun 2013 15:08:55 +0800 Message-ID: <1371712137-4019-2-git-send-email-aaron.lu@intel.com> References: <1371712137-4019-1-git-send-email-aaron.lu@intel.com> Return-path: Received: from mga02.intel.com ([134.134.136.20]:42935 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752917Ab3FTHIe (ORCPT ); Thu, 20 Jun 2013 03:08:34 -0400 In-Reply-To: <1371712137-4019-1-git-send-email-aaron.lu@intel.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" Cc: Micael Dias , Zhang Rui , linux-acpi@vger.kernel.org, Len Brown Add description for video module's parameter brightness_switch_enabled into kernel-parameters.txt. Signed-off-by: Aaron Lu --- Documentation/kernel-parameters.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 2fe6e76..7f64e0f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3229,6 +3229,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. video= [FB] Frame buffer configuration See Documentation/fb/modedb.txt. + video.brightness_switch_enabled= [0,1] + If set to 1, on receiving an ACPI notify event + generated by hotkey, video driver will adjust brightness + level and then send out the event to user space through + the allocated input device; If set to 0, video driver + will only send out the event without touching backlight + brightness level. + default: 1 + virtio_mmio.device= [VMMIO] Memory mapped virtio (platform) device. -- 1.8.3.3.gfada522