From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Subject: Re: [linux-pm] ehci_hcd related S3 lockup on ASUS laptops, again Date: Wed, 18 Apr 2012 14:11:40 -0400 Message-ID: <1334772700.28106.48.camel@gandalf.stny.rr.com> References: <1334769847.28106.47.camel@gandalf.stny.rr.com> <20120418174610.GA10142@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120418174610.GA10142-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Brown Cc: Alan Stern , jrnieder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, Andrey Rahmatullin , linux-pm-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, USB list List-Id: linux-pm@vger.kernel.org On Wed, 2012-04-18 at 18:46 +0100, Mark Brown wrote: > On Wed, Apr 18, 2012 at 01:24:07PM -0400, Steven Rostedt wrote: > > > Hmm, if the system is going down into suspend, what's the purpose of > > putting the individual devices into low-power states. The entire system > > will become a low-power state once it hits suspend, wont it? > > Embedded platforms tend to rely on drivers doing this, either because > the system suspend just suspends a portion of the system or because > suspending the core on the system relies on the devices having being > quiesced (or a combination of both). I guess this explains why MS has a separate OS for embedded devices. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html