bus_alloc_resource() returns NULL, but why?

[M. Warner Losh]

In message: <20040316150321.GA4900 at tyler>
            thefly <thefly at acaro.org> writes:
: but the problem is that bus_alloc_resource() returns NULL. I don't have
: a clue about WHY it should. It's running on: FreeBSD 5.2.1-RELEASE with
: GENERIC kernel in a dual pentium 200MMX.

Maybe because the device is not on a self-identifying bus and
therefore needs a hint (or possibly an identify rouitne).

Warner