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kernel-doc-3.11.10-100.fc18.noarch.rpm

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>ieee80211_ctstoself_duration</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="The 802.11 subsystems &#8211; for kernel developers" /><link rel="up" href="bk02pt01ch04s05.html" title="functions/definitions" /><link rel="prev" href="API-ieee80211-ctstoself-get.html" title="ieee80211_ctstoself_get" /><link rel="next" href="API-ieee80211-generic-frame-duration.html" title="ieee80211_generic_frame_duration" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">ieee80211_ctstoself_duration</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ieee80211-ctstoself-get.html">Prev</a>&#160;</td><th width="60%" align="center">functions/definitions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-ieee80211-generic-frame-duration.html">Next</a></td></tr></table><hr /></div><div class="refentry"><a id="API-ieee80211-ctstoself-duration"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ieee80211_ctstoself_duration &#8212; 
  Get the duration field for a CTS-to-self frame
 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">__le16 <strong class="fsfunc">ieee80211_ctstoself_duration </strong>(</code></td><td>struct ieee80211_hw * <var class="pdparam">hw</var>, </td></tr><tr><td>&#160;</td><td>struct ieee80211_vif * <var class="pdparam">vif</var>, </td></tr><tr><td>&#160;</td><td>size_t <var class="pdparam">frame_len</var>, </td></tr><tr><td>&#160;</td><td>const struct ieee80211_tx_info * <var class="pdparam">frame_txctl</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a id="idm139754517465488"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>hw</code></em></span></dt><dd><p>
     pointer obtained from <code class="function">ieee80211_alloc_hw</code>.
    </p></dd><dt><span class="term"><em class="parameter"><code>vif</code></em></span></dt><dd><p>
     <span class="structname">struct ieee80211_vif</span> pointer from the add_interface callback.
    </p></dd><dt><span class="term"><em class="parameter"><code>frame_len</code></em></span></dt><dd><p>
     the length of the frame that is going to be protected by the CTS-to-self.
    </p></dd><dt><span class="term"><em class="parameter"><code>frame_txctl</code></em></span></dt><dd><p>
     <span class="structname">struct ieee80211_tx_info</span> of the frame.
    </p></dd></dl></div></div><div class="refsect1"><a id="idm139754517454688"></a><h2>Description</h2><p>
   If the CTS-to-self is generated in firmware, but the host system must provide
   the duration field, the low-level driver uses this function to receive
   the duration field value in little-endian byteorder.
</p></div><div class="refsect1"><a id="idm139754517453280"></a><h2>Return</h2><p>
   The duration.
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