_bus_space_poke
_bus_space_poke(sc->sc_bustag, h, o, s, v);
static int _bus_space_poke(
_bus_space_poke(t, h, o, sizeof(uint8_t), v)
_bus_space_poke(t, h, o, sizeof(uint16_t), v)
_bus_space_poke(t, h, o, sizeof(uint32_t), v)