ieee80211_tx_status(9) [centos man page]

IEEE80211_TX_STATUS(9)					  The basic mac80211 driver inte				    IEEE80211_TX_STATUS(9)

NAME

       ieee80211_tx_status - transmit status callback

SYNOPSIS

       void ieee80211_tx_status(struct ieee80211_hw * hw, struct sk_buff * skb);

ARGUMENTS

       hw
	   the hardware the frame was transmitted by

       skb
	   the frame that was transmitted, owned by mac80211 after this call

DESCRIPTION

       Call this function for all transmitted frames after they have been transmitted. It is permissible to not call this function for multicast
       frames but this can affect statistics.

       This function may not be called in IRQ context. Calls to this function for a single hardware must be synchronized against each other. Calls
       to this function, ieee80211_tx_status_ni and ieee80211_tx_status_irqsafe may not be mixed for a single hardware. Must not run concurrently
       with ieee80211_rx or ieee80211_rx_ni.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						    IEEE80211_TX_STATUS(9)

IEEE80211_STA_SET_BU(9) 				     Advanced driver interface					   IEEE80211_STA_SET_BU(9)

NAME

       ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames

SYNOPSIS

       void ieee80211_sta_set_buffered(struct ieee80211_sta * sta, u8 tid, bool buffered);

ARGUMENTS

       sta
	   struct ieee80211_sta pointer for the sleeping station

       tid
	   the TID that has buffered frames

       buffered
	   indicates whether or not frames are buffered for this TID

DESCRIPTION

       If a driver buffers frames for a powersave station instead of passing them back to mac80211 for retransmission, the station may still need
       to be told that there are buffered frames via the TIM bit.

       This function informs mac80211 whether or not there are frames that are buffered in the driver for a given TID; mac80211 can then use this
       data to set the TIM bit (NOTE: This may call back into the driver's set_tim call! Beware of the locking!)

       If all frames are released to the station (due to PS-poll or uAPSD) then the driver needs to inform mac80211 that there no longer are
       frames buffered. However, when the station wakes up mac80211 assumes that all buffered frames will be transmitted and clears this data,
       drivers need to make sure they inform mac80211 about all buffered frames on the sleep transition (sta_notify with STA_NOTIFY_SLEEP).

       Note that technically mac80211 only needs to know this per AC, not per TID, but since driver buffering will inevitably happen per TID
       (since it is related to aggregation) it is easier to make mac80211 map the TID to the AC as required instead of keeping track in all
       drivers that use this API.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   IEEE80211_STA_SET_BU(9)