On Solaris SPARC there are two PCI buses from the root hub.
WinDriver v9.0.1 and below supports only the 33Mhz * 33MB PCI bus.

Therefore, if you encounter problems when trying to use WinDriver to detect and access your PCI card on a Solaris SPARC machine, please verify that your card is inserted into a PCI slot on the 33Mhz*33MB PCI bus.