Accessing USB device on MAC OSX platform, the “App Sandbox”=YES and
”com.apple.security.device.usb”=YES Must be increased to entitlents file.
How to Implement USB Access in iOS Platform?
iOS does not support access to USB accessories in general. If the accessory connects via a high-level framework, you can talk to it via that framework — for example, you can receive keyboard events from a USB keyboard via UIKit — but there’s no general-purpose USB API.
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"