IPAD Accessory Communication through UART

We manufacture a new accessory for ipad/iphone which should transfer commands to the IPad. We Use the UART (through a certain apple-protocol called Lingo). My shows that I can only use USB (30PIN Connector) and custom protocols.

Question:

• Is there any-to-use UART-to-connect to the IPad accessory from APP side?
• If the protocol is implemented in UART, we should are able to move it to USB, if it's not available to my App via USB.

My main guess is, the UART commands & Access is protocols reserved to the IPhone OS and isn't available to Apps. Certain UART commands also include settings for volumes and Audio re-routing etc, so I guess that ' s secured.

Reference

Without jailbreak, you are not being able to access the UART on Ipad/ipod/iphone as a normal developer. If you need access to the serial port or USB, you need to join Apple's MFi ("Made for IPhone") program and you'll get Fu ll access to all relevant information. Unfortunately, you'll have to convince Apple, and the doing serious business and has a high volume manufacturing facil ity at hand (see also this thread).

IPAD Accessory Communication through UART