enum mac80211_tx_control_flags — flags to describe transmit control
enum mac80211_tx_control_flags { IEEE80211_TX_CTRL_PORT_CTRL_PROTO, IEEE80211_TX_CTRL_PS_RESPONSE, IEEE80211_TX_CTRL_RATE_INJECT, IEEE80211_TX_CTRL_AMSDU, IEEE80211_TX_CTRL_FAST_XMIT };
this frame is a port control protocol frame (e.g. EAP)
This frame is a response to a poll frame (PS-Poll or uAPSD).
This frame is injected with rate information
This frame is an A-MSDU frame
This frame is going through the fast_xmit path