49 lines
1.6 KiB
Plaintext
Executable File
49 lines
1.6 KiB
Plaintext
Executable File
page.title=Lights
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pdk.version=1.0
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doc.type=porting
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@jd:body
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<div id="qv-wrapper">
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<div id="qv">
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<h2>In this document</h2>
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<a name="toc"/>
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<ul>
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<li><a href="#androidLightsBuildingDriver">Building a Lights Library</a></li>
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<li><a href="#androidLightsInterface">Interface</a></li>
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</ul>
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</div>
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</div>
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<p>Android defines a user space C abstraction interface for LED hardware. The interface header is defined in
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<code>hardware/libhardware/include/hardware/lights.h</code>.
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In order to integrate LEDs with Android you need to build a shared library that implements this interface.
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The types of logical lights currently supported by Android include:
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<ul>
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<li>Backlight</li>
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<li>Keyboard</li>
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<li>Buttons</li>
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<li>Battery</li>
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<li>Notifications</li>
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<li>Attention</li>
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</ul>
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</p>
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<a name="androidLightsBuildingDriver"></a><h3>Building a Lights Library</h3>
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<p> To implement a Lights driver, create a shared library that implements the interface defined in <code>lights.h</code>. You must name your shared library
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<code>liblights.so</code> so that it will get loaded from <code>/system/lib</code> at runtime.
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</p
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<a name="androidLightsInterface"></a><h3>Interface</h3>
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<p><span class="lh3"><a name="androidDoxygenNote"></a></span>
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<p class="note"><strong>Note</strong>: This document relies on some Doxygen-generated content that appears in an iFrame below. To return to the Doxygen default content for this page, <a href="lights.html">click here</a>.</p>
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<iframe onLoad="resizeDoxFrameHeight();" src="lights_8h.html" scrolling="no" scroll="no" id="doxygen" marginwidth="0" marginheight="0"
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frameborder="0" style="width:100%;"></iframe>
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