1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>drm_edid_to_speaker_allocation</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#idp1126417260" title="EDID Helper Functions Reference"><link rel="prev" href="API-drm-edid-to-sad.html" title="drm_edid_to_sad"><link rel="next" href="API-drm-av-sync-delay.html" title="drm_av_sync_delay"></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">drm_edid_to_speaker_allocation</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-drm-edid-to-sad.html">Prev</a>&#160;</td><th width="60%" align="center">EDID Helper Functions Reference</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-drm-av-sync-delay.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-drm-edid-to-speaker-allocation"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>drm_edid_to_speaker_allocation &#8212; 
2     extracts Speaker Allocation Data Blocks from EDID
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">drm_edid_to_speaker_allocation </b>(</code></td><td>struct edid * <var class="pdparam">edid</var>, </td></tr><tr><td>&#160;</td><td>u8 ** <var class="pdparam">sadb</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1126517212"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>edid</code></em></span></dt><dd><p>
4     EDID to parse
5    </p></dd><dt><span class="term"><em class="parameter"><code>sadb</code></em></span></dt><dd><p>
6     pointer to the speaker block
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1126519852"></a><h2>Description</h2><p>
8   Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
9</p></div><div class="refsect1"><a name="idp1126520540"></a><h2>Note</h2><p>
10   The returned pointer needs to be freed using <code class="function">kfree</code>.
11</p></div><div class="refsect1"><a name="idp1126521532"></a><h2>Return</h2><p>
12   The number of found Speaker Allocation Blocks or negative number on
13   error.
14</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-drm-edid-to-sad.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="ch02s05.html#idp1126417260">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-drm-av-sync-delay.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">drm_edid_to_sad</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_av_sync_delay</span></td></tr></table></div></body></html>
15