'\" t
.\"     Title: struct survey_info
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Actions and configuration
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "STRUCT SURVEY_INFO" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Actions and configuration"
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.SH "NAME"
struct_survey_info \- channel survey response
.SH "SYNOPSIS"
.sp
.nf
struct survey_info {
  struct ieee80211_channel * channel;
  u64 time;
  u64 time_busy;
  u64 time_ext_busy;
  u64 time_rx;
  u64 time_tx;
  u64 time_scan;
  u32 filled;
  s8 noise;
};  
.fi
.SH "MEMBERS"
.PP
channel
.RS 4
the channel this survey record reports, may be
\fBNULL\fR
for a single record to report global statistics
.RE
.PP
time
.RS 4
amount of time in ms the radio was turn on (on the channel)
.RE
.PP
time_busy
.RS 4
amount of time the primary channel was sensed busy
.RE
.PP
time_ext_busy
.RS 4
amount of time the extension channel was sensed busy
.RE
.PP
time_rx
.RS 4
amount of time the radio spent receiving data
.RE
.PP
time_tx
.RS 4
amount of time the radio spent transmitting data
.RE
.PP
time_scan
.RS 4
amount of time the radio spent for scanning
.RE
.PP
filled
.RS 4
bitflag of flags from
enum
survey_info_flags
.RE
.PP
noise
.RS 4
channel noise in dBm\&. This and all following fields are optional
.RE
.SH "DESCRIPTION"
.PP
Used by
\fBdump_survey\fR
to report back per\-channel survey information\&.
.PP
This structure can later be expanded with things like channel duty cycle etc\&.
.SH "AUTHOR"
.PP
\fBJohannes Berg\fR <\&johannes@sipsolutions.net\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br