struct_survey_info(9) [centos man page]

STRUCT 
SURVEY_INFO(9)					     Actions and configuration					     STRUCT SURVEY_INFO(9)

NAME

       struct_survey_info - channel survey response

SYNOPSIS

       struct survey_info {
	 struct ieee80211_channel * channel;
	 u64 channel_time;
	 u64 channel_time_busy;
	 u64 channel_time_ext_busy;
	 u64 channel_time_rx;
	 u64 channel_time_tx;
	 u32 filled;
	 s8 noise;
       };

MEMBERS

       channel
	   the channel this survey record reports, mandatory

       channel_time
	   amount of time in ms the radio spent on the channel

       channel_time_busy
	   amount of time the primary channel was sensed busy

       channel_time_ext_busy
	   amount of time the extension channel was sensed busy

       channel_time_rx
	   amount of time the radio spent receiving data

       channel_time_tx
	   amount of time the radio spent transmitting data

       filled
	   bitflag of flags from enum survey_info_flags

       noise
	   channel noise in dBm. This and all following fields are optional

DESCRIPTION

       Used by dump_survey to report back per-channel survey information.

       This structure can later be expanded with things like channel duty cycle etc.

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						     STRUCT SURVEY_INFO(9)

STRUCT 
IEEE80211_RX_(9) 				  The basic mac80211 driver inte				   STRUCT IEEE80211_RX_(9)

NAME

       struct_ieee80211_rx_status - receive status

SYNOPSIS

       struct ieee80211_rx_status {
	 u64 mactime;
	 enum ieee80211_band band;
	 int freq;
	 int signal;
	 int noise;
	 int antenna;
	 int rate_idx;
	 int flag;
       };

MEMBERS

       mactime
	   value in microseconds of the 64-bit Time Synchronization Function (TSF) timer when the first data symbol (MPDU) arrived at the
	   hardware.

       band
	   the active band when this frame was received

       freq
	   frequency the radio was tuned to when receiving this frame, in MHz

       signal
	   signal strength when receiving this frame, either in dBm, in dB or unspecified depending on the hardware capabilities flags
	   IEEE80211_HW_SIGNAL_*

       noise
	   noise when receiving this frame, in dBm.

       antenna
	   antenna used

       rate_idx
	   index of data rate into band's supported rates or MCS index if HT rates are use (RX_FLAG_HT)

       flag

	   RX_FLAG_*

DESCRIPTION

       The low-level driver should provide this information (the subset supported by hardware) to the 802.11 code with each received frame, in the
       skb's control buffer (cb).

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   STRUCT IEEE80211_RX_(9)