Hello, I have a device like a gas meter or an electricity meter and it has: an optical interface IEC 62056-21 (IEC-1107) with support for speeds up to 115,200 Bd. On Windows and Android, we use a cable that has an optical interface and on the other end we connect USB A to the PC and to the Android via an OTG to USB adapter. The cable contains a chip from FTDI FT230XQ. I have an application in MAUI where I want to connect this cable to the 10th generation iPad and communicate similarly to, for example, via the COM5 port on the PC. When the port opens, I send a query and get a response. Is it possible, what should I do for this? What about Apple certification of cables? Is it possible to send a packet from MAUI via the USB C port via the cable and then receive and process the packet again? What about MFi? I found this: https://redpark.com/usb-c-serial-cable/ Please can you give me some idea or expert to this topic? Thanks, Roman