netdev - Re: [linux-pm] [RFC] Runtime power management on ipw2100

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Date:	Wed, 31 Jan 2007 15:24:36 +0200
From:	Amit Kucheria <amit.kucheria@...ia.com>
To:	ext Pavel Machek <pavel@...e.cz>
Cc:	ext Andi Kleen <ak@...e.de>, Matthew Garrett <mjg59@...f.ucam.org>,
	netdev@...r.kernel.org, linux-pm@...ts.osdl.org,
	ipw2100-devel@...ts.sourceforge.net
Subject: Re: [linux-pm] [RFC] Runtime power management on	ipw2100

On Wed, 2007-01-31 at 14:04 +0100, ext Pavel Machek wrote:
> On Wed 2007-01-31 13:53:20, Amit Kucheria wrote:
> > 
> > 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?
> 									Pavel

>>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.

Regards,
Amit
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