From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754496AbZHKM4N (ORCPT ); Tue, 11 Aug 2009 08:56:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750927AbZHKM4H (ORCPT ); Tue, 11 Aug 2009 08:56:07 -0400 Received: from cassiel.sirena.org.uk ([80.68.93.111]:38320 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750855AbZHKM4H (ORCPT ); Tue, 11 Aug 2009 08:56:07 -0400 Date: Tue, 11 Aug 2009 13:56:03 +0100 From: Mark Brown To: Mike Rapoport Cc: me@felipebalbi.com, Liam Girdwood , linux-kernel@vger.kernel.org Subject: Re: Question about userspace-consumer Message-ID: <20090811125603.GH24947@sirena.org.uk> References: <20090810200553.GB4652@gandalf> <20090810215800.GB4528@sirena.org.uk> <20090811054438.GA7176@gandalf> <4A815F64.8000105@compulab.co.il> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A815F64.8000105@compulab.co.il> X-Cookie: BOFH excuse User-Agent: Mutt/1.5.18 (2008-05-17) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: broonie@sirena.org.uk X-SA-Exim-Scanned: No (on cassiel.sirena.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 11, 2009 at 03:09:08PM +0300, Mike Rapoport wrote: > Felipe Balbi wrote: > > that said, power supply framework and regulator framework seem to be > > well enough for implementing the basic support for SBS-enabled charging > > scheme. > As far as I understood SBS scheme, the host has very little impact on the > charging process. Most of the charging is handled by Smart Battery and Smart > Battery Charger without any host intervention. I strongly suspect that in at least some designs the battery charger itself will be at least partially dumb and the battery charger part of the spec done by software running on the host CPU - there's examples in the spec which seem to back that up.