dadk_getphygeom
int dadk_getphygeom(opaque_t objp, struct tgdk_geom *dkgeom_p);
dadk_getphygeom,
(void) dadk_getphygeom(DKTP_DATA, &phyg);
(void) dadk_getphygeom(DKTP_DATA, &phyg);
(void) dadk_getphygeom(DKTP_DATA, &phyg);