Sending ALLOCATE_ADDRESS_RANGE request directly to the 1394Bus FD-O ...

Hi all,

First, thanks for your helps about installing a WDM filter driver. But now,
I have a new
problem:

For a specific development, I am trying to send the ALLOCATE_ADDRESS_RANGE
request
directly to the 1394Bus FDO (no 1394 devices are connected). But the bus
driver always return
the error 0xC0000008 (STATUS_INVALID_HANDLE). If I send this request to a
PDO that has
been created by the 1394Bus FDO, all works fine. But I would like to be able
to allocate this
address range without having to wait for a PDO.

So, is it possible to send the ALLOCATE_ADDRESS_RANGE request directly to
1394Bus FDO?
If not, why? If yes, how? Have I to allocate an HANDLEs array? If so, how?

Thanks very much for any answers.

Regards.

Serge DE LUCA