From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755985AbYDGFm4 (ORCPT ); Mon, 7 Apr 2008 01:42:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751088AbYDGFmr (ORCPT ); Mon, 7 Apr 2008 01:42:47 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:35364 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751082AbYDGFmr (ORCPT ); Mon, 7 Apr 2008 01:42:47 -0400 Date: Sun, 6 Apr 2008 22:48:32 -0700 From: Greg KH To: Xavier Bestel Cc: linux-kernel@vger.kernel.org Subject: Re: power off USB port Message-ID: <20080407054832.GA11216@kroah.com> References: <1207477224.3785.10.camel@bip.parateam.prv> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1207477224.3785.10.camel@bip.parateam.prv> User-Agent: Mutt/1.5.16 (2007-06-09) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 06, 2008 at 12:20:24PM +0200, Xavier Bestel wrote: > Hi, > > I'd like to power off some usb ports (to make ejected usb flash drives > power off their little "don't remove me yet" led), but I can't find how > to do it with a 2.6.24 kernel: > - eject /dev/sd? doesn't work anymore > - /sys/bus/usb/devices/*/power/state doesn't exist anymore > - hub-ctrl-2.c [1] fails with a "Broken pipe" error > > Does anyone know how to achieve that ? You can not, sorry. Please see the archives of this list, and the linux-usb list for the many many many times this keeps coming up. thanks, greg k-h