u32 lightrec_rw(struct lightrec_state *state, union code op, u32 addr,
u32 data, u32 *flags, struct block *block, u16 offset);
u32 lightrec_rw(struct lightrec_state *state, union code op, u32 addr,
u32 data, u32 *flags, struct block *block, u16 offset);