The third integration option to use is FTDI’s legacy drivers. FTDI’s VCP driver provides a virtual com port and the standard D2xx driver provides direct access to the USB device through a DLL. Both of these drivers are mutually exclusive and cannot be used at the same time. Like the Java D2xx driver option, the Android platform must have USB host, provide the USB power, and will work with FTDI’s existing bridge chips, modules, and cables. Unlike the Java D2xx driver option, the Android Platform must be “rooted” to install the VCP and legacy D2xx driver.  Although available to all Android versions, use of the legacy drivers is only recommended for Android Platform OS before version 3.2. Interface Option 1 or Option 2 are suggested for current Android Platform OS versions.