To support versatile tablet usage scenarios, Google has included a USB Host API in Android since version 3.2. Before version 3.2, an Android application could not access USB devices attached to a system naturally without root access rights. The Android USB Host API removes this limitation, allowing utilization of the USB gadgets attached to Android Host or OTG port. FTDI provides a Java class library that adapts to applications, so the developer can focus on the desired input and output data. The design goal of the class library is to provide access to all the D2XX functions, including EEPROM functions. The D2xx library can be included in an Android application project in Eclipse easily. To do so, first copy the library file (d2xx.jar) to the folder of the project and add it by going to “Project”–“Properties”.