Before iPhone 15, the lighting interfaces required communication with external devices through mfi authentication,But there is no evidence to suggest that the USB-C interface needs to add an MFi authentication chip for authentication detection. Is there a way to use USB-C to detect external devices and communicate with each other in the app now, so that I can create my app and communicate with hardware devices
Is there a way to use USB-C to detect external devices and communicate with each other in the app now, so that I can create my app and communicate with hardware devices
Not in the way that you’re hoping for.
iOS and iPadOS will both happily talk to a wide range of standard USB accessories: keyboards, thumb drives, and so on. There isn’t a way to write an app that talks to a custom accessory [1].
You can do this on iPadOS using DriverKit. However, DriverKit is not available on iOS.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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[1] Well, there might be with an MFi accessory but:
We can’t discuss MFi here.
It sounds like you’re not interested in going down that path anyway.