mxl111sf_tuner_read_reg
ret = mxl111sf_tuner_read_reg(state, V6_TUNER_IF_FCW_BYP_REG, &ctrl);
ret = mxl111sf_tuner_read_reg(state, MXL_MODE_REG, &mxl_mode);
ret = mxl111sf_tuner_read_reg(state, V6_RF_LOCK_STATUS_REG, &data);
ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_LSB_REG, &val1);
ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_MSB_REG, &val2);