Develop accessory using lightning connector

Seen the MFI FAQs?

https://mfi.apple.com/MFiWeb/getFAQ.action

Just note that details on the program are behind NDA, otherwise.

Hey there,

I'm freelancer on electronic circuits designer, and on my current project I want to design a hub that connects to iPhone and works as: 1. lightning to 3.5mm headphone jack, 2. a button to send a simple data as HID to iPhone and 3. has a lightning female port that enables to connection to charger to charge iPhone.

The company needs just a few of this device (actually 50) just for they're and they're few VIP costumers use.

I'm designing this gadget for iOS and Android devices. I don't have problem with USB and USB-c, but I there is some ambiguity. I searched web and Also Apple MFi program FAQ, I have some questions:

1. What kind of hardware-based considerations I should have in comparison to USB-c?
2. What is standards and protocols of data transfer of lightning port? Is it similar to USB interface?
3. Is USB hub controller ICs work on lightning as well as USB-c?
4. What is accessory identification chip? What is it's datasheet? Were and how to buy it?
5. For this amount of production (something about 50), is there necessary to get MFi certificate?
6. Is there a datasheet of accessory identification chip for me to complete the design and then enrolling to MFi program?

Thanks, Hamidreza Hassanvand

can you tell me anything about what this accessory is for? I too am interested in developing - thanks