1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>unregister_framebuffer</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="fbdev.html#idp1113948452" title="Frame Buffer Memory"><link rel="prev" href="API-register-framebuffer.html" title="register_framebuffer"><link rel="next" href="API-fb-set-suspend.html" title="fb_set_suspend"></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">unregister_framebuffer</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-register-framebuffer.html">Prev</a>&#160;</td><th width="60%" align="center">Frame Buffer Memory</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-fb-set-suspend.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-unregister-framebuffer"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>unregister_framebuffer &#8212; 
2     releases a frame buffer device
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">unregister_framebuffer </b>(</code></td><td>struct fb_info * <var class="pdparam">fb_info</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1113961164"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>fb_info</code></em></span></dt><dd><p>
4     frame buffer info structure
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1113962788"></a><h2>Description</h2><p>
6   Unregisters a frame buffer device <em class="parameter"><code>fb_info</code></em>.
7   </p><p>
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9   Returns negative errno on error, or zero for success.
10   </p><p>
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12   This function will also notify the framebuffer console
13   to release the driver.
14   </p><p>
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16   This is meant to be called within a driver's <code class="function">module_exit</code>
17   function. If this is called outside <code class="function">module_exit</code>, ensure
18   that the driver implements <code class="function">fb_open</code> and <code class="function">fb_release</code> to
19   check that no processes are using the device.
20</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-register-framebuffer.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="fbdev.html#idp1113948452">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-fb-set-suspend.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">register_framebuffer</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">fb_set_suspend</span></td></tr></table></div></body></html>
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