Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759325AbXIXNZR (ORCPT ); Mon, 24 Sep 2007 09:25:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757463AbXIXNZF (ORCPT ); Mon, 24 Sep 2007 09:25:05 -0400 Received: from smtp-out001.kontent.com ([81.88.40.215]:39551 "EHLO smtp-out.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757338AbXIXNZE (ORCPT ); Mon, 24 Sep 2007 09:25:04 -0400 From: Oliver Neukum To: Hans de Goede Subject: Re: USB autosuspend and turning of usb pendrive leds Date: Mon, 24 Sep 2007 15:25:50 +0200 User-Agent: KMail/1.9.6 (enterprise 20070731.694771) Cc: Jiri Kosina , linux-kernel , linux-usb-devel@lists.sourceforge.net References: <46F3C704.5000203@hhs.nl> <200709241236.37406.oliver@neukum.org> <46F7A1CF.4010509@hhs.nl> In-Reply-To: <46F7A1CF.4010509@hhs.nl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200709241525.51187.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1367 Lines: 32 Am Montag 24 September 2007 schrieb Hans de Goede: > Oliver Neukum wrote: > > Am Freitag 21 September 2007 schrieb Jiri Kosina: > >> On Fri, 21 Sep 2007, Hans de Goede wrote: > >> > >>> Thats not what I had in mind, autosuspend doesn't work (presumably > >>> because hal keeps polling for media change) maybe I should fix hal to > >>> not keep polling for devices which don't have removable media? > >> Hi Hans, > >> > >> I think the correct solution is that HAL stops polling the device as soon > >> as it sees that it got autosuspended. > > > > And how would we notice a medium change then? If there's an alternative > > way to notice it or we know it cannot happen there's no reason to poll at all. > > > > It looks like hal is currently polling device of which it knows the medium is > not removable, like USB-pens. It doesn't, which is the point. The overwhelming number of USB devices don't bother to correctly declare themselves not removable SCSI devices. The discrimination will have to happen on a product:vendor basis, which means that a large database has to be built and maintained. Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/