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authorDavid Herrmann <dh.herrmann@googlemail.com>2012-09-28 23:44:19 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2013-01-09 16:17:03 -0800
commit6b7e45c7516b7fdfe85e7792f82624458dcb2ac6 (patch)
tree6c802a2a375c77b0babbf83487f7abee70db6deb /man/drmHandleEvent.xml
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man: convert manpages to XML instead of plain troff
If we want to use the manpages in external documentation other than normal manpages, we should rather use XML. Furthermore, almost no-one knows troff today, anyway, and XML allows others to easily add more pages without having to learn troff. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
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+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+ Written 2012 by David Herrmann <dh.herrmann@googlemail.com>
+ Dedicated to the Public Domain
+-->
+
+<refentry id="drmHandleEvent">
+ <refentryinfo>
+ <title>Direct Rendering Manager</title>
+ <productname>libdrm</productname>
+ <date>September 2012</date>
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>David</firstname>
+ <surname>Herrmann</surname>
+ <email>dh.herrmann@googlemail.com</email>
+ </author>
+ </authorgroup>
+ </refentryinfo>
+
+ <refmeta>
+ <refentrytitle>drmHandleEvent</refentrytitle>
+ <manvolnum>3</manvolnum>
+ </refmeta>
+
+ <refnamediv>
+ <refname>drmHandleEvent</refname>
+ <refpurpose>read and process pending DRM events</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+
+ <funcsynopsis>
+ <funcsynopsisinfo>#include &lt;xf86drm.h&gt;</funcsynopsisinfo>
+
+ <funcprototype>
+ <funcdef>int <function>drmHandleEvent</function></funcdef>
+ <paramdef>int <parameter>fd</parameter></paramdef>
+ <paramdef>drmEventContextPtr <parameter>evctx</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+
+ </refsynopsisdiv>
+
+ <refsect1>
+ <title>Description</title>
+ <para><function>drmHandleEvent</function> processes outstanding DRM events
+ on the DRM file-descriptor passed as <parameter>fd</parameter>. This
+ function should be called after the DRM file-descriptor has polled
+ readable; it will read the events and use the passed-in
+ <parameter>evctx</parameter> structure to call function pointers
+ with the parameters noted below:
+
+<programlisting>
+typedef struct _drmEventContext {
+ int version;
+ void (*vblank_handler) (int fd,
+ unsigned int sequence,
+ unsigned int tv_sec,
+ unsigned int tv_usec,
+ void *user_data)
+ void (*page_flip_handler) (int fd,
+ unsigned int sequence,
+ unsigned int tv_sec,
+ unsigned int tv_usec,
+ void *user_data)
+} drmEventContext, *drmEventContextPtr;
+</programlisting>
+
+ </para>
+
+ </refsect1>
+
+ <refsect1>
+ <title>Return Value</title>
+ <para><function>drmHandleEvent</function> returns <literal>0</literal> on
+ success, or if there is no data to read from the file-descriptor.
+ Returns <literal>-1</literal> if the read on the file-descriptor fails
+ or returns less than a full event record.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>Reporting Bugs</title>
+ <para>Bugs in this function should be reported to
+ http://bugs.freedesktop.org under the "Mesa" product, with "Other" or
+ "libdrm" as the component.</para>
+ </refsect1>
+
+ <refsect1>
+ <title>See Also</title>
+ <para>
+ <citerefentry><refentrytitle>drm</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>drm-kms</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>drmModePageFlip</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>drmWaitVBlank</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ </para>
+ </refsect1>
+</refentry>