ba_is_2
extern int ba_is_2(topo_mod_t *, did_t *);
{ 0, 0, 0, -1, -1, "PCIExp SLOT3", ba_is_2 },
{ 0, 2, 2, -1, -1, "PCIExp SLOT4", ba_is_2 },
{ 0, 4, 4, -1, -1, "PCIExp SLOT5", ba_is_2 },