F81604_SJA1000_MOD
ret = f81604_sja1000_read(priv, F81604_SJA1000_MOD, &tmp);
ret = f81604_sja1000_write(priv, F81604_SJA1000_MOD,
ret = f81604_sja1000_read(priv, F81604_SJA1000_MOD, &tmp);
ret = f81604_sja1000_write(priv, F81604_SJA1000_MOD, mod_reg);