Man page 9 : ieee80211_ctstoself_duration

ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame

__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *  hw , struct ieee80211_vif *  vif , size_t  frame_len , const struct ieee80211_tx_info *  frame_txctl );

hw
    pointer obtained from ieee80211_alloc_hw.

vif
     struct ieee80211_vif pointer from the add_interface callback.

frame_len
    the length of the frame that is going to be protected by the CTS-to-self.

frame_txctl
     struct ieee80211_tx_info of the frame.

If the CTS-to-self is generated in firmware, but the host system must provide the duration field, the low-level driver uses this function to receive the duration field value in little-endian byteorder.

The duration.

Johannes Berg <>
    Author.