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| <a name="androidWifiTitle"></a><h1>Wi-Fi</h1> |
| |
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| <a name="toc"/> |
| <div style="padding:10px"> |
| <a href="#androidWifiIntroduction">Introduction</a><br/> |
| <a href="#androidWifiBuildingDriver">Building a Wi-Fi Library</a><br/> |
| <a href="#androidWifiInterface">Interface</a><br/></div></font></div> |
| |
| <a name="androidWifiIntroduction"></a><h2>Introduction</h2> |
| |
| <p>Android uses wpa_supplicant as the platform interface to the Wi-Fi device. Your Wi-Fi driver must be compatible with the standard wpa_supplicant in addition to extensions added to the supplicant (specifically, the "DRIVER" commands described in <code>wifi.h/wifi_command()</code>).</p> |
| |
| |
| <a name="androidWifiBuildingDriver"></a><h2>Building a Wi-Fi Library</h2> |
| |
| <p>To create a Wi-Fi driver for Android:</p> |
| <p><ul> |
| <li>create a shared library that implements the interface defined in <code>include/hardware/wifi.h</code>, which also defines the Wi-Fi supplicant.</li> |
| <li>Follow the instructions posted at <a href="http://hostap.epitest.fi/wpa_supplicant/">http://hostap.epitest.fi/wpa_supplicant/</a>.</li> |
| <li>Place your driver in <code>libs/hardware/wifi/</code></li> |
| <li>Test your driver using the command line <code>wpa_cli</code> utilities.</li> |
| </ul> |
| |
| <p>You can find the default implementation in <code>libs/hardware/wifi/wifi.c</code>. If you need to make changes, create a new source file similar to <code>wifi.c</code>, for example, <code>wifi_mywifi.c</code>. </p> |
| |
| <p>Update the default <code>Android.mk</code> file (<code>libs/hardware/wifi/Android.mk</code>) as shown below.</p> |
| <pre class="prettify"> |
| LOCAL_SHARED_LIBRARIES += libnetutils |
| |
| ifeq ($(TARGET_DEVICE),acme) |
| LOCAL_SRC_FILES += wifi/wifi_mywifi.c |
| else |
| LOCAL_SRC_FILES += wifi/wifi.c |
| endif |
| </pre> |
| |
| |
| <a name="androidWifiInterface"></a><h2>Interface</h2> |
| |
| |
| |
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