Requires the pciutils-devel-2.0-2 rpm currently in playpen
(static lib + headers). Probably will get moved into dist-6.1
soon.

Use is as follows:
--
/* pciprobe.h */

struct pciDevice {
        unsigned int vendor, device, type;
        char * driver;
        char * desc;
};

int probePciReadDrivers(const char *fn);
struct pciDevice **probePci(unsigned int type, int all);
--

probePciReadDrivers is same as before.
probePci returns a null-terminated list of pciDevice *.

'type' is a base class/subclass type (look in /usr/include/pci/header.h
under 'Device classes and subclasses' for constants to use, or you
can hard-code them....). 
'all=0' means return only those for which there are drivers
(which means entries where the drivers are *not* 'unknown' or 'ignore'.)
'all=anything else' means return everything.

Currently, the pcitable is more-or-less the same as before:
0xvendor	0xdevice	<driver>	"description"

It's generated from the pci.ids file by the 'makeids' command,
which reads the driver mappings from the *current* pcitable
file in the current directory. Basically, to change a driver,
edit the pcitable and commit; rerunning makeids will simply
merge in any new PCI ids in the pci.ids file, and change
any changed descriptions.

testprobe currently prints (more-or-less) the results
of probePci(0,1);