On Wed, 2011-02-09 at 00:32 +0100, Felix Fietkau wrote: > When a driver wants to buffer some frames internally without feeding them > back to mac80211, this allows it to still wake up the station > > Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx> > --- > include/net/mac80211.h | 14 ++++++++++++++ > net/mac80211/sta_info.c | 8 ++++++++ > 2 files changed, 22 insertions(+), 0 deletions(-) > > diff --git a/include/net/mac80211.h b/include/net/mac80211.h > index 8fcd169..9a0babe 100644 > --- a/include/net/mac80211.h > +++ b/include/net/mac80211.h > @@ -2194,6 +2194,20 @@ static inline int ieee80211_sta_ps_transition_ni(struct ieee80211_sta *sta, > #define IEEE80211_TX_STATUS_HEADROOM 13 > > /** > + * ieee80211_sta_set_tim - set the TIM bit for a sleeping station > + * > + * If a driver buffers frames for a powersave station instead of passing > + * them back to mac80211 for retransmission, the station needs to be told > + * to wake up using the TIM bitmap in the beacon. > + * > + * This function sets the station's TIM bit - it will be cleared automatically > + * either when the station wakes up (and mac80211 has flushed out its > + * buffered frames), or if all remaining buffered frames in mac80211 have > + * timed out. I'm wondering ... this doesn't seem right. Even if the frames in mac80211 time out, there might be more in the driver still, no? It seems that this should be more of a "I have frames / I no longer have frames" type API? johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
