diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/rtl-sdr.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h index 7de8455..ec0b4c8 100644 --- a/include/rtl-sdr.h +++ b/include/rtl-sdr.h @@ -60,9 +60,9 @@ RTLSDR_API int rtlsdr_close(rtlsdr_dev_t *dev); * * Usually both ICs use the same clock. Changing the clock may make sense if * you are applying an external clock to the tuner or to compensate the - * frequency (and samplerate) error caused by the original cheap crystal. + * frequency (and samplerate) error caused by the original (cheap) crystal. * - * NOTE: Call this function only if you know what you are doing. + * NOTE: Call this function only if you fully understand the implications. * * \param dev the device handle given by rtlsdr_open() * \param rtl_freq frequency value used to clock the RTL2832 in Hz @@ -109,8 +109,21 @@ RTLSDR_API int rtlsdr_set_center_freq(rtlsdr_dev_t *dev, uint32_t freq); */ RTLSDR_API uint32_t rtlsdr_get_center_freq(rtlsdr_dev_t *dev); +/*! + * Set the frequency correction value for the device. + * + * \param dev the device handle given by rtlsdr_open() + * \param ppm correction value in parts per million (ppm) + * \return 0 on success + */ RTLSDR_API int rtlsdr_set_freq_correction(rtlsdr_dev_t *dev, int ppm); +/*! + * Get actual frequency correction value of the device. + * + * \param dev the device handle given by rtlsdr_open() + * \return correction value in parts per million (ppm) + */ RTLSDR_API int rtlsdr_get_freq_correction(rtlsdr_dev_t *dev); enum rtlsdr_tuner { |