1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>hdmi_infoframe_unpack</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux DRM Developer's Guide"><link rel="up" href="ch02s05.html#idp1126875156" title="HDMI Infoframes Helper Reference"><link rel="prev" href="API-hdmi-infoframe-log.html" title="hdmi_infoframe_log"><link rel="next" href="API-drm-plane-helper-check-update.html" title="drm_plane_helper_check_update"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">hdmi_infoframe_unpack</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-hdmi-infoframe-log.html">Prev</a>&#160;</td><th width="60%" align="center">HDMI Infoframes Helper Reference</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-drm-plane-helper-check-update.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-hdmi-infoframe-unpack"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>hdmi_infoframe_unpack &#8212; 
2     unpack binary buffer to a HDMI infoframe
3 </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">int <b class="fsfunc">hdmi_infoframe_unpack </b>(</code></td><td>union hdmi_infoframe * <var class="pdparam">frame</var>, </td></tr><tr><td>&#160;</td><td>void * <var class="pdparam">buffer</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1126985164"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>frame</code></em></span></dt><dd><p>
4     HDMI infoframe
5    </p></dd><dt><span class="term"><em class="parameter"><code>buffer</code></em></span></dt><dd><p>
6     source buffer
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1126987788"></a><h2>Description</h2><p>
8   Unpacks the information contained in binary buffer <em class="parameter"><code>buffer</code></em> into a structured
9   <em class="parameter"><code>frame</code></em> of a HDMI infoframe.
10   Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
11   specification.
12   </p><p>
13
14   Returns 0 on success or a negative error code on failure.
15</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-hdmi-infoframe-log.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="ch02s05.html#idp1126875156">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-drm-plane-helper-check-update.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">hdmi_infoframe_log</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">drm_plane_helper_check_update</span></td></tr></table></div></body></html>
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