From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: So, what's the status on the recent patches here? Date: Fri, 25 Aug 2006 23:27:12 +0200 Message-ID: <20060825212712.GG9568@elf.ucw.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.osdl.org Errors-To: linux-pm-bounces@lists.osdl.org To: Alan Stern Cc: linux-pm@lists.osdl.org List-Id: linux-pm@vger.kernel.org Hi! > > The frequency of entering this state should not interfere with my active > > use case. > > = > > -B- After I've put down the USB device, I now can program the internal > > SOC bus wrapper for the USB to allow idling of the interconnect. I also > > need to associate the USB remote wake interrupt with a wake up interrupt > > to restart my interconnect. All devices on that interconnect must be in > > the same state for the big savings to happen. > > = > > Certainly for this embedded system, not coordinating the device states > > means I can't get the big power savings. > = > Part of this programming has to be done in the architecture-specific > driver for the interconnect. There already is code being developed to > suspend USB buses when they aren't in use (although determining _when_ > they aren't in use has not yet been implemented). However this code > stops Are there some patches to test? I'd like to power down USB bus, even when it has device connected (I do not user fingerprint scanner that much). Pavel -- = (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html