<p>AdbTest is a sample program that implements a subset of the <code>adb</code> USB protocol. Currently it only implements the <code>adb logcat</code> command and displays the log output in a text view and only allows connecting to one device at a time. However, the support classes are structured in a way that would allow connecting to multiple devices and running multiple <code>adb</code> commands simultaneously.</p> <p>This program serves as an example of the following USB host features:</p> <ul> <li>Matching devices based on interface class, subclass and protocol (see <code>device_filter.xml</code>)</li> <li>Asynchronous IO on bulk endpoints</li> </ul>