From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: [PATCH 03/10] Acer-WMI: fingers off backlight if video.ko is serving this functionality Date: Sat, 08 Nov 2008 01:14:22 -0500 Message-ID: <1226124869-1878-4-git-send-email-lenb@kernel.org> References: <1226124869-1878-1-git-send-email-lenb@kernel.org> Return-path: Received: from vms042pub.verizon.net ([206.46.252.42]:52766 "EHLO vms042pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751412AbYKHGOh (ORCPT ); Sat, 8 Nov 2008 01:14:37 -0500 Received: from localhost.localdomain ([96.237.168.40]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0KA0002FG40BRGP4@vms042.mailsrvcs.net> for linux-acpi@vger.kernel.org; Sat, 08 Nov 2008 00:14:36 -0600 (CST) In-reply-to: <1226124869-1878-1-git-send-email-lenb@kernel.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: Thomas Renninger , Andi Kleen , Len Brown From: Thomas Renninger Signed-off-by: Thomas Renninger Acked-by: Zhang Rui Signed-off-by: Andi Kleen Acked-by: Carlos Corbacho Signed-off-by: Len Brown --- drivers/misc/acer-wmi.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c index 0532a2d..94c9f91 100644 --- a/drivers/misc/acer-wmi.c +++ b/drivers/misc/acer-wmi.c @@ -1297,6 +1297,12 @@ static int __init acer_wmi_init(void) set_quirks(); + if (!acpi_video_backlight_support() && has_cap(ACER_CAP_BRIGHTNESS)) { + interface->capability &= ~ACER_CAP_BRIGHTNESS; + printk(ACER_INFO "Brightness must be controlled by " + "generic video driver\n"); + } + if (platform_driver_register(&acer_platform_driver)) { printk(ACER_ERR "Unable to register platform driver.\n"); goto error_platform_register; -- 1.6.0.3.640.g6331a