The issue focused on an issue where the driver's computer would be able to tell whether the computer was connected to the computer's USB port, and if so to what extent. That's a feature called "plug-and-play", and is a major feature that Apple has made available in its mobile operating system for the iPhone 5 and later. However, Apple doesn't have any way to tell if your computer is connecting to a USB port at all, and thus whether to send data through USB.

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