> : I think I'm being pretty careful in defining and accessing the data in
> : those structs.  All fields in the struct have byte size, so I don't
>                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Then, in essence you want `unsigned char *', not a struct.
That's an option, but a very appealing one.  Have a look at usb.h
and tell me what you think.

    -- Lennart