hostapd listen interval = zero?

Jouni Malinen j at w1.fi
Sun Nov 23 08:40:37 EST 2008


On Sat, Nov 22, 2008 at 09:32:42PM +0100, Stefan Steuerwald wrote:

> I'm seeing something I described here:
> http://marc.info/?l=linux-wireless&m=122727674810057&w=2
> 
> In short: there's "traffic for you" beacons (TIM bit set), the client
> wakes up, but no data is sent by the AP, and the client goes to sleep
> again. I hoped this would maybe behave properly with your latest
> patch.

If the AP was timing out the buffered frames, it should really clear the
TIM bit, too, at the same time..

> Which piece of code is responsible for sending the buffered data after
> a client wakes up? Would this be in hostapd or in the driver? Where to
> look? I'm using the nl80211 driver.

mac80211 (see net/mac80211/rx.c and ap_sta_ps_end())

-- 
Jouni Malinen                                            PGP id EFC895FA


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