bus_space_tag, bus_space_handle

[Cole]

Hi.

Im currently needing to write to a few registers for a PCI device. The
driver is provided, but it does not contain support for writing
specific registers itself. I also do not with to modify the driver.

I would like to know what the best method would be for writing to
these registers, the best way to go about getting bus_space_tag, and
handle for the connected pci device.

Im currently using FreeBSD 7.x.

Regards
/Cole