Hi all, Since i am working with adding libpayload usb stack to option rom, i have been blocked with the usb_initialize function. I find that the size of libpayload is 104K, but the max size of option rom is oxff * 512bytes. which means 127.5K. I am afraid our option rom can not works fine with usb stack properly. Is there any other method for us to expand the rom size?