tuner->type = V4L2_TUNER_RADIO;
#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
- V4L2_TUNER_CAP_RDS;
+ V4L2_TUNER_CAP_RDS | V4L2_TUNER_CAP_RDS_BLOCK_IO;
#else
tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
#endif