ieee80211_rts_duration — Get the duration field for an RTS frame
__le16 ieee80211_rts_duration
(struct ieee80211_hw * hw, struct ieee80211_vif * vif, size_t frame_len, const struct ieee80211_tx_control * frame_txctl);
pointer obtained from ieee80211_alloc_hw.
struct ieee80211_vif pointer from struct ieee80211_if_init_conf.
the length of the frame that is going to be protected by the RTS.
struct ieee80211_tx_control of the frame.
If the RTS 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.