c073ab2871
Original author: mritter Merged from: //branches/cupcake/... Automated import of CL 144166
50 lines
1.7 KiB
Plaintext
Executable File
50 lines
1.7 KiB
Plaintext
Executable File
page.title=GPS
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@jd:body
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<a name="toc"/>
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<div style="padding:10px">
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<a href="#androidGpsIntroduction">Introduction</a><br/>
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<a href="#androidGPSBuildingDriver">Building a GPS Library</a><br/>
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<a href="#androidGPSInterface">Interface</a><br/></div>
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<a name="androidGpsIntroduction"></a><h2>Introduction</h2>
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<p>Android defines a user space C abstraction interface for GPS hardware. The interface header is defined in <code>include/hardware/gps.h</code>. In order to integate GPS with Android, you need to build a shared library that implements this interface. </p>
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<a name="androidGPSBuildingDriver"></a><h2>Building a GPS Library</h2>
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<p>To implement a GPS driver, create a shared library that implements the interface defined in <code>gps.h</code>. You must name your shared library <code>libgps.so</code> so that it will get loaded from <code>/system/lib</code> at runtime. Place GPS sources and Android.mk in <code>partner/acme/chipset_or_board/gps/</code> (where "acme" is your product name and "chipset_or_board" is your hardware target).</p>
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<p>The following stub <code>Android.mk</code> file ensures that <code>libgps</code> compiles and links to the appropriate libraries:</p>
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<pre class="prettify">
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LOCAL_PATH := $(call my-dir)
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include $(CLEAR_VARS)
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LOCAL_MODULE := libgps
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LOCAL_STATIC_LIBRARIES:= \
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# include any static library dependencies
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LOCAL_SHARED_LIBRARIES := \
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# include any shared library dependencies
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LOCAL_SRC_FILES += \
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# include your source files. eg. MyGpsLibrary.cpp
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LOCAL_CFLAGS += \
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# include any needed compile flags
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LOCAL_C_INCLUDES:= \
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# include any needed local header files
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include $(BUILD_SHARED_LIBRARY)
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</pre>
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<a name="androidGPSInterface"></a><h2>Interface</h2>
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