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Re: Power consumption of RTL8187 (driver)/recommendations for low-power USB 802.11 adapter?

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Andrea Merello <andreamrl@xxxxxxxxxx> 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
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