zx_command
volatile struct zx_command *sc_zc;
sizeof(struct zx_command), BUS_SPACE_MAP_LINEAR, 0, &bh) != 0) {
sc->sc_zc = (struct zx_command *)bus_space_vaddr(bt, bh);
volatile struct zx_command *zc;
volatile struct zx_command *zc;
volatile struct zx_command *zc;
volatile struct zx_command *zc;
volatile struct zx_command *zc;