USB device driver

We are building a board based on the NIOS processor.  In addition, we
are putting 2 USB ports to be able to use "off the shelf" USB devices.
 We are using the TI TUSB2136 chip to control the USB ports.  We are
running a simple control loop and ISRs instead of an actual RTOS.

I can find many tutorials on writing USB drivers for Linux or Windows,
but nothing on how to do something on a more "bare bones" system.  Any
advice/pointers to where I can find such information?

Thanks,

Jeff

"jeff" <jjgwork@yahoo.com> wrote in message
news:c9c9cb4b.0403181321.10a0c26@posting.google.com...
> We are building a board based on the NIOS processor.  In addition, we
> are putting 2 USB ports to be able to use "off the shelf" USB devices.
>
>> snip
>
> Thanks,
>
> Jeff

Jeff
try http://www.beyondlogic.org/ for a start
the links will bring you to several other good
websites