| page.title=Lights |
| pdk.version=1.0 |
| doc.type=porting |
| @jd:body |
| |
| <div id="qv-wrapper"> |
| <div id="qv"> |
| <h2>In this document</h2> |
| <a name="toc"/> |
| <ul> |
| <li><a href="#androidLightsBuildingDriver">Building a Lights Library</a></li> |
| <li><a href="#androidLightsInterface">Interface</a></li> |
| </ul> |
| </div> |
| </div> |
| |
| <p>Android defines a user space C abstraction interface for LED hardware. The interface header is defined in |
| <code>hardware/libhardware/include/hardware/lights.h</code>. |
| In order to integrate LEDs with Android you need to build a shared library that implements this interface. |
| |
| The types of logical lights currently supported by Android include: |
| <ul> |
| <li>Backlight</li> |
| <li>Keyboard</li> |
| <li>Buttons</li> |
| <li>Battery</li> |
| <li>Notifications</li> |
| <li>Attention</li> |
| </ul> |
| </p> |
| |
| <a name="androidLightsBuildingDriver"></a><h3>Building a Lights Library</h3> |
| <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 |
| <code>liblights.so</code> so that it will get loaded from <code>/system/lib</code> at runtime. |
| </p |
| |
| |
| <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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