From: Larry Finger <Larry.Finger@lwfinger.net>
To: Florian Zumbiehl <florz@florz.de>
Cc: andreamrl@tiscali.it, herton@mandriva.com.br,
htl10@users.sourceforge.net, linux-wireless@vger.kernel.org
Subject: Re: Power consumption of RTL8187 (driver)/recommendations for low-power USB 802.11 adapter?
Date: Fri, 18 Dec 2009 17:28:10 -0600 [thread overview]
Message-ID: <4B2C100A.9000507@lwfinger.net> (raw)
In-Reply-To: <20091218185916.GE2512@florz.florz.dyndns.org>
On 12/18/2009 12:59 PM, Florian Zumbiehl wrote:
>
> Well, yeah, I meant "payload I care about", of course :-)
>
> For comparison, if I plug in and configure my prism2 card to connect
> to the same AP, power consumption goes up by ~ 2 Watts while idling.
> Given that it seems to be possible to build a wifi interface (plus driver)
> that does manage to stay connected on a budget of ~ 2 Watts, I would hope
> that there is such a thing for USB, too. b-only would be fine, too - it's
> USB 1.1 only, anyhow.
I have no idea what the relative power consumption is for USB and PCI.
Certainly, a PCI card can assume a cleaner power source - the USB is
going to have to do heavier regulation.
One other thing to try is to turn off the LED. Unset
CONFIG_MAC80211_LEDS in your .config. That should save some power.
next prev parent reply other threads:[~2009-12-18 23:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-18 18:02 Power consumption of RTL8187 (driver)/recommendations for low-power USB 802.11 adapter? Florian Zumbiehl
2009-12-18 18:20 ` Larry Finger
2009-12-18 18:59 ` Florian Zumbiehl
2009-12-18 23:28 ` Larry Finger [this message]
2009-12-19 0:15 ` Andrea Merello
2009-12-19 1:13 ` Florian Zumbiehl
2009-12-19 10:30 ` Andrea Merello
2009-12-19 15:32 ` Hin-Tak Leung
2009-12-19 18:44 ` Florian Zumbiehl
2009-12-19 23:31 ` Hin-Tak Leung
2009-12-21 21:27 ` Florian Zumbiehl
2009-12-20 18:43 ` Kalle Valo
2009-12-19 0:37 ` Florian Zumbiehl
2009-12-19 10:19 ` Andrea Merello
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