I want to use my Xperia S for debugging, so I followed the OEM USB Drivers instructions step by step but still not work, I didn\'t find "Android Composite ADB Interface
Setting the USB mode isn't good enough. USB debugging must be enabled to allow adb to connect to the phone. This probably states the obvious but for me it took a while reading through these comments and wondering why adb doesn't connect. make sure your developer mode is active on the phone and "Developer Options" -> "USB debugging" is enabled.