From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: Runtime resume of children Date: Thu, 26 Nov 2009 17:47:08 +0100 Message-ID: <200911261747.09019.oliver@neukum.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Alan Stern Cc: linux-pm@lists.linux-foundation.org List-Id: linux-pm@vger.kernel.org Am Mittwoch, 25. November 2009 21:46:14 schrieb Alan Stern: > On Wed, 25 Nov 2009, Oliver Neukum wrote: > > Am Montag, 23. November 2009 21:59:12 schrieb Alan Stern: > > > Correct. It's a specific case that I need to handle for USB. > > > > Hm. In which way is this different from a system where devices > > share clock lines? It seems to me that groups of devices that > > can be suspended only together are not rare. That in USB these > > devices happen to be all a device's interfaces does not really > > matter. > > That's not a good example because there's nothing wrong with suspending > some of the devices while leaving the clock and the others running. > You'll have to search harder to find a group of devices which really do > need to be suspended all together. True, so think about a shared switchable power line. But that's the way of the future. Regards Oliver