From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [linux-pm] [RFC] Runtime power management on ipw2100 Date: Wed, 31 Jan 2007 14:44:16 +0100 Message-ID: <20070131134416.GG19643@elf.ucw.cz> References: <20070131075249.GA22115@srcf.ucam.org> <20070131102744.GA24424@srcf.ucam.org> <200701311148.20777.ak@suse.de> <1170244400.6746.31.camel@amit-laptop> <20070131130447.GF19643@elf.ucw.cz> <1170249876.6746.43.camel@amit-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1170249876.6746.43.camel@amit-laptop> Sender: netdev-owner@vger.kernel.org To: Amit Kucheria Cc: ext Andi Kleen , Matthew Garrett , netdev@vger.kernel.org, linux-pm@lists.osdl.org, ipw2100-devel@lists.sourceforge.net List-Id: linux-pm@vger.kernel.org Hi! > > > Yes. Low power states without ability to respond to wakeup interrupts > > > would be broken behaviour generally. > > > > Do you realy expect wifi to save significant ammount of power, while > > still listening for packets on wireless network? > > >From N800 specs (not meant as a shameless plug): > > Continuous WLAN browsing: upto 3.5 hrs > Always Online WLAN (idle but respond to VoIP calls): upto 2 days > Standby time(no WLAN): upto 12 days > > So with the right hardware, yes, you can listen and still save power. Okay, but I'm somehow not sure if ipw2100 can do this kind of tricks. Yes, n800 is likely very nice toy :-). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html