From mboxrd@z Thu Jan 1 00:00:00 1970 From: Len Brown Subject: Re: [Devel] Regarding ACPI library Date: Fri, 25 Dec 2009 23:03:22 -0500 (EST) Message-ID: References: <6b4365880912231733v58fb8b84wf3bc896113328421@mail.gmail.com> <6b4365880912241306y4769ad85mb8e6564587063d14@mail.gmail.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: Received: from vms173007pub.verizon.net ([206.46.173.7]:55184 "EHLO vms173007pub.verizon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750916AbZLZEDZ (ORCPT ); Fri, 25 Dec 2009 23:03:25 -0500 Received: from localhost.localdomain ([74.104.151.18]) by vms173007.mailsrvcs.net (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008; 32bit)) with ESMTPA id <0KV800DKCR9OLQB1@vms173007.mailsrvcs.net> for linux-acpi@vger.kernel.org; Fri, 25 Dec 2009 22:03:24 -0600 (CST) In-reply-to: <6b4365880912241306y4769ad85mb8e6564587063d14@mail.gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: nisha jain Cc: linux-acpi@vger.kernel.org, devel@acpica.org > Thanks, I have tried using the PowerTop application and modified to see it for dual core but i am not able to get the proper results (c > state information for second core is not proper) also I have found through the PowerTop developers that the application is not suitable > for full load power measurement. I am not quite sure what does the idle mode means though i think it means that no user level > applications are running. I am not able to further use the PowerTop as it doesn't provide mechanism for changing the processor state by > user and I guess there are only few utilities for doing frequency scaling like cpfreq-set utility, I need to develop customized > utility. I would like to know how I can develop my own utility using ACPI if it is feasible? Also if any specific development > environment is required to do so? I don't understand what your goal is, and thus I'm unable to help you reach it. -Len