From: Kalle Valo <kalle.valo@iki.fi>
To: andreamrl@tiscali.it
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
Florian Zumbiehl <florz@florz.de>,
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: Sun, 20 Dec 2009 20:43:56 +0200 [thread overview]
Message-ID: <878wcxzdsj.fsf@purkki.valot.fi> (raw)
In-Reply-To: <c68f135e0912181615p7cd36bd0n7054b43f2b453599@mail.gmail.com> (Andrea Merello's message of "Sat\, 19 Dec 2009 01\:15\:15 +0100")
Andrea Merello <andreamrl@tiscali.it> writes:
> Even if potentially the 802.11 protocol can probably work even without
> beacons (even it might seems a contraddiction, I think it is true if
> you are NOT using powersave functionality), currently I suspect the
> mac80211 wants them in order to calculate network quality (missed
> beacon rate) and it might even send more probes (TX is other power
> burnt out) if it cannot detect beacons.
mac80211 does support beacon filtering, see IEEE80211_HW_BEACON_FILTER
for more.
> Even worse, even if one will modify the mac80211 in order to live
> without beacons, I think it can't be told to the rtl8187 to filter out
> beacons. The HW can filter out all management frames, but not only
> beacons.
Yeah, HW support is needed for this feature.
--
Kalle Valo
next prev parent reply other threads:[~2009-12-20 18:44 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
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 [this message]
2009-12-19 0:37 ` Florian Zumbiehl
2009-12-19 10:19 ` Andrea Merello
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