MESONI2C_TOKEN_BITS
pos *= MESONI2C_TOKEN_BITS;
#define MESONI2C_TOKEN_MASK ((1 << MESONI2C_TOKEN_BITS) - 1)
#define MESONI2C_TOKEN_REG_HALF (32 / MESONI2C_TOKEN_BITS)
#define MESONI2C_TOKEN_REG_FULL (64 / MESONI2C_TOKEN_BITS)