If you just want to play, buy a Razer Kishi or a PS4 DualShock 4 . The DS4 works via Bluetooth natively and feels 95% like a PS2 controller. However, if you are a preservationist with a box of original PS2 controllers in your garage, learning usbutil is the only way to give them a second life on your Android tablet.
A USB On-The-Go (OTG) cable or adapter to connect your USB drive to your Android device.
This software solved a key problem: the PS2's USB 1.1 ports were notoriously slow, and simply copying an ISO file to a drive wouldn't work. The traditional PC-based USBUtil could convert game ISOs into a special, fragmented format that, while not perfect, was necessary for OPL to function. For years, this meant PS2 enthusiasts were chained to their computers to prepare their game libraries.
: Automatically adds the necessary game ID to the filename for OPL recognition. Art & Config : Downloads game covers and generates configuration files.
Play PS2 Games from USB — No Discs, No Modding with Free McBoot