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 requires mfi authentication. 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
[Re-Titled by Moderator]
AFAIK, no. AFAIK, DriverKit and External Accessory framework and such are not presently supported on iPhone 15 via USB-C, and AFAIK USB-C is not part of MFi. You will want to confirm all of that with Apple Developer Support, of course. (Please let us know, too.)
I contacted the Apple support team and they told me that I need to go to the MFI website to check if authentication is required, but it is obvious that we have not found a device authentication entry for USB-C.
They also informed me that if technical support is needed, I need to contact code level technical support. I tried clicking on it, but I don't know which API framework to choose for help, and there is no clear information indicating which framework we can use.
How to use USB-C to detect external devices and communicate with each other in the app?
