struct ieee80211_rx_status — receive status
struct ieee80211_rx_status {
u64 mactime;
u32 device_timestamp;
u32 ampdu_reference;
u32 flag;
u16 freq;
u8 vht_flag;
u8 rate_idx;
u8 vht_nss;
u8 rx_flags;
u8 band;
u8 antenna;
s8 signal;
u8 chains;
s8 chain_signal[IEEE80211_MAX_CHAINS];
u8 ampdu_delimiter_crc;
}; value in microseconds of the 64-bit Time Synchronization Function (TSF) timer when the first data symbol (MPDU) arrived at the hardware.
arbitrary timestamp for the device, mac80211 doesn't use it but can store it and pass it back to the driver for synchronisation
A-MPDU reference number, must be a different value for each A-MPDU but the same for each subframe within one A-MPDU
RX_FLAG_*
frequency the radio was tuned to when receiving this frame, in MHz
RX_VHT_FLAG_*
index of data rate into band's supported rates or MCS index if
HT or VHT is used (RX_FLAG_HT/RX_FLAG_VHT)
number of streams (VHT only)
internal RX flags for mac80211
the active band when this frame was received
antenna used
signal strength when receiving this frame, either in dBm, in dB or
unspecified depending on the hardware capabilities flags
IEEE80211_HW_SIGNAL_*
bitmask of receive chains for which separate signal strength values were filled.
per-chain signal strength, in dBm (unlike signal, doesn't
support dB or unspecified units)
A-MPDU delimiter CRC