excuse me, I'm new to USB programming stuff
and have been trying to write bare-metal application, bring up USB camera device on my RPi ,
but missed out on the link ,
I've googled then found USPi, tried it on my program for 2 weeks,
but failed to integrate USPi into my bare-metal environment,
might be something going wrong ,
, without any document & hints,
I would have to spend great amount of time digging USPi (also complicated Linux kernel).
that's why I ask the question, to see if anyone cracking the USB driver on RPi can give some hints to me .
could somebody kindly share the document again ?
really appreciate the work .