From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Calviani Subject: Re: Information regarding C3 cpu state and bus mastering activity Date: Mon, 12 Dec 2005 17:10:38 +0100 Message-ID: References: <439CC549.5060500@tzi.de> <439D726E.4020704@tzi.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <439D726E.4020704-cGBD8117FJM@public.gmane.org> Content-Disposition: inline Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi again, > 2. Disable the busmaster. The kernel looks at the current busmaster > activity and then chooses if it wants to disable busmaster and enter C3. Maybe i'm completely out of target but what about, as said here by Nate Lawson http://lists.freebsd.org/pipermail/freebsd-acpi/2004-November/0= 00835.html , to "power down the USB host controller when idle"? Regards, Marco Calviani ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click