dino_conf_read
pcireg_t dino_conf_read(void *, pcitag_t, int);
.pc_conf_read = dino_conf_read,
if (tag != -1 && dino_conf_read(sc, tag, 0) != 0xffffffff) {
if (dino_conf_read(sc, tag, 0) != 0xffffffff) {
data = dino_conf_read(sc, tag,
class = dino_conf_read(sc, tag, PCI_CLASS_REG);