> I agree that a portable way to do the IO without the extra copy would
> be a win in general.  However a bus-spaceified version of uiomove()
> doesn't look trivial at first glance, because of copyin() and
> copyout() which are MD.

But aren't all the bus-space routines M.D. anyway? It'd basically
be munging a bus space read with the kernel side of copyin() and
copyout().

Take care,

Bill