diff options
Diffstat (limited to 'firmware/export/si4700.h')
| -rw-r--r-- | firmware/export/si4700.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/firmware/export/si4700.h b/firmware/export/si4700.h index bd75bf0817..033b435f2a 100644 --- a/firmware/export/si4700.h +++ b/firmware/export/si4700.h @@ -55,7 +55,13 @@ void si4700_rds_read_raw_async(unsigned char *buf, int count); /* implemented by void si4700_rds_interrupt(void); #endif /* (CONFIG_RDS & RDS_CFG_ISR) */ -/* Read raw RDS info for processing */ +/* Read raw RDS info for processing. + * - If RDS_CFG_ISR is set, the tuner driver will call si4700_rds_read_raw_async() which should + * perform an asynchronous read and call this function when the data has been read. + * - If RDS_CFG_POLL is set, this function will read status and RDS data and process it if a new + * packet is available. + * - Otherwise this function will read a RDS packet and process it under the assumption that it is + * new. */ void si4700_rds_process(void); #endif /* HAVE_RDS_CAP */ |