From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423083AbXEEPm6 (ORCPT ); Sat, 5 May 2007 11:42:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423214AbXEEPm5 (ORCPT ); Sat, 5 May 2007 11:42:57 -0400 Received: from py-out-1112.google.com ([64.233.166.179]:58228 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423083AbXEEPm4 (ORCPT ); Sat, 5 May 2007 11:42:56 -0400 Date: Sat, 5 May 2007 17:06:03 +0300 From: Paul Sokolovsky X-Priority: 3 (Normal) Message-ID: <1609424106.20070505170603@gmail.com> To: ian CC: Henrique de Moraes Holschuh , kernel-discuss@handhelds.org, Greg KH , , Anton Vorontsov , David Woodhouse , Shem Multinymous Subject: Re: [Kernel-discuss] Re: [PATCH 3/8] Universal power supply class (was: battery class) In-Reply-To: <1178372786.3901.4.camel@wirenth> References: <20070503213139.GC20067@zarina> <41840b750705032155w21d98b5g6236daf9bff66606@mail.gmail.com> <20070505035413.GB21359@khazad-dum.debian.net> <1178372786.3901.4.camel@wirenth> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello ian, Saturday, May 5, 2007, 4:46:26 PM, you wrote: > On Sat, 2007-05-05 at 00:54 -0300, Henrique de Moraes Holschuh wrote: >> Given that USB-power *is* usually also "dumb" (i.e. it doesn't do any >> control signaling over the USB bus for power-control purposes), > it might be dumb, but it is useful to know wether the PDA is charging > from usb or mains power. and some devices allow one to switch on / off > the ability to charge via usb And USB does have power budgetting requirements, etc. (like was already pointed in own of initial review messages). So, USB is definitely not the same thing as "dumb DC". -- Best regards, Paul mailto:pmiscml@gmail.com