qtt_response_publish</a> *publish)&#160;</td>
          <td class="paramname"><em>publish_response_callback</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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</div><div class="memdoc">

<p>Initializes an MQTT client.This function <em>must</em> be called before any other API function calls. </p>
<dl class="section pre"><dt>Precondition</dt><dd>None.</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="