Is it possible for iOS 14 ?

Hi. We need to interact with a USB token (USB CCID) from our iOS application using standard Lightning to USB OTG Adapter (MFI) and for iPadOS as well. Applications for other platforms (Windows, Debian, macOS, Android) supporting this USB token have already been made and are successfully working. Of course we are planning to do own PCSC realization like in our Android app. Please explain where to find the official documentation on how to do this for iOS, which official framework to use, etc., because I could not find more or less clear information on this. Only info for macOS I could find but it helpless ( Thanks a lot for any answer.