From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Adachi, Kenichi" Subject: RE: Query regarding the linux ACPI Date: Tue, 17 Jun 2003 20:25:11 +0900 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <004401c334c3$1dce6b00$b8d21b2b@ADACHIPC> References: <09c601c334bb$d91226c0$2a0806c0@wiproxcoio3398> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <09c601c334bb$d91226c0$2a0806c0-mtNSFjsC3/e12yEdTghClg@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: 'siva' , 'Derek Broughton' , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi, > That means this option can be programmed in the BIOS and we > can have it as > option in the BIOS. > Am I right ? > Power button override is done at hardware level as Derek pointed out and what you have to look into is the Datasheet of your chipset. For example, ICH4 Datasheet says: 2.10 Power Management Interface Table 2-10. Power Management Interface Signals PWRBTN# : If PWRBTN# is pressed for more than 4 seconds, this causes an unconditional transition (power button override) to the S5 state with only the PWRBTN# available as a wake event. Override occurs even if the system is in the S1-S4 states. This signal has an internal pull-up resistor. Thanks, - Adachi, Kenichi ------------------------------------------------------- This SF.Net email is sponsored by: INetU Attention Web Developers & Consultants: Become An INetU Hosting Partner. Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php