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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>struct survey_info</title><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /><link rel="home" href="index.html" title="The 802.11 subsystems – for kernel developers" /><link rel="up" href="bk01ch02.html" title="Chapter 2. Actions and configuration" /><link rel="prev" href="API-enum-survey-info-flags.html" title="enum survey_info_flags" /><link rel="next" href="API-struct-beacon-parameters.html" title="struct beacon_parameters" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>struct survey_info</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-enum-survey-info-flags.html">Prev</a> </td><th width="60%" align="center">Chapter 2. Actions and configuration</th><td width="20%" align="right"> <a accesskey="n" href="API-struct-beacon-parameters.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="struct survey_info"><a id="API-struct-survey-info"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct survey_info —
channel survey response
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><pre class="programlisting">
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;
}; </pre></div><div class="refsect1" title="Members"><a id="id3032069"></a><h2>Members</h2><div class="variablelist"><dl><dt><span class="term">channel</span></dt><dd><p>
the channel this survey record reports, mandatory
</p></dd><dt><span class="term">channel_time</span></dt><dd><p>
amount of time in ms the radio spent on the channel
</p></dd><dt><span class="term">channel_time_busy</span></dt><dd><p>
amount of time the primary channel was sensed busy
</p></dd><dt><span class="term">channel_time_ext_busy</span></dt><dd><p>
amount of time the extension channel was sensed busy
</p></dd><dt><span class="term">channel_time_rx</span></dt><dd><p>
amount of time the radio spent receiving data
</p></dd><dt><span class="term">channel_time_tx</span></dt><dd><p>
amount of time the radio spent transmitting data
</p></dd><dt><span class="term">filled</span></dt><dd><p>
bitflag of flags from <span class="structname">enum</span> survey_info_flags
</p></dd><dt><span class="term">noise</span></dt><dd><p>
channel noise in dBm. This and all following fields are
optional
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id3032175"></a><h2>Description</h2><p>
Used by <code class="function">dump_survey</code> to report back per-channel survey information.
</p><p>
This structure can later be expanded with things like
channel duty cycle etc.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-enum-survey-info-flags.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bk01ch02.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-struct-beacon-parameters.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>enum survey_info_flags</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>struct beacon_parameters</span></td></tr></table></div></body></html>
