__bs_po
#define bus_space_poke_1(t, h, o, v) __bs_po(1,(t),(h),(o),(v))
#define bus_space_poke_2(t, h, o, v) __bs_po(2,(t),(h),(o),(v))
#define bus_space_poke_4(t, h, o, v) __bs_po(4,(t),(h),(o),(v))
#define bus_space_poke_8(t, h, o, v) __bs_po(8,(t),(h),(o),(v))
#define bus_space_poke_1(t, h, o, v) __bs_po(1,(t),(h),(o),(v))
#define bus_space_poke_2(t, h, o, v) __bs_po(2,(t),(h),(o),(v))
#define bus_space_poke_4(t, h, o, v) __bs_po(4,(t),(h),(o),(v))
#define bus_space_poke_8(t, h, o, v) __bs_po(8,(t),(h),(o),(v))