From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mohamed Ikbel Boulabiar Subject: Re: Low-Level and Long-Term Battery Control Date: Thu, 22 Apr 2010 11:25:01 +0200 Message-ID: References: <20100415180200.GA1443@ucw.cz> <20100416041509.GB1552@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from mail-bw0-f225.google.com ([209.85.218.225]:48290 "EHLO mail-bw0-f225.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752862Ab0DVJZZ (ORCPT ); Thu, 22 Apr 2010 05:25:25 -0400 In-Reply-To: <20100416041509.GB1552@elf.ucw.cz> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Pavel Machek Cc: David Rees , linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org > Anyway, this is done by smartbattery, not by OS. I've found this for IBM laptops : http://www.thinkwiki.org/wiki/Tp_smapi#Battery_charge_control_features The features exist in windows for Sony Vaio laptops as the users say here http://forum.notebookreview.com/showthread.php?t=288638 http://ubuntuforums.org/showthread.php?t=1225557 And it seems the same for Acer. But it is very strange that only some companies exposes such features. We can't find a way to do that by some reverse engineering ? How does the lm_sensors guys discovering sensors in laptops ? http://www.lm-sensors.org/ Any way, I always think that it can be controlled in some way, but we don't have a public api explained for that. M-I