add getters for direct sampling and offset tuning mode

Signed-off-by: Steve Markgraf <steve@steve-m.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h
index 0b130bb..157d2a5 100644
--- a/include/rtl-sdr.h
+++ b/include/rtl-sdr.h
@@ -242,6 +242,15 @@ RTLSDR_API int rtlsdr_set_agc_mode(rtlsdr_dev_t *dev, int on);
 RTLSDR_API int rtlsdr_set_direct_sampling(rtlsdr_dev_t *dev, int on);
 
 /*!
+ * Get state of the direct sampling mode
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return -1 on error, 0 means disabled, 1 I-ADC input enabled
+ *	    2 Q-ADC input enabled
+ */
+RTLSDR_API int rtlsdr_get_direct_sampling(rtlsdr_dev_t *dev);
+
+/*!
  * Enable or disable offset tuning for zero-IF tuners, which allows to avoid
  * problems caused by the DC offset of the ADCs and 1/f noise.
  *
@@ -251,6 +260,14 @@ RTLSDR_API int rtlsdr_set_direct_sampling(rtlsdr_dev_t *dev, int on);
  */
 RTLSDR_API int rtlsdr_set_offset_tuning(rtlsdr_dev_t *dev, int on);
 
+/*!
+ * Get state of the offset tuning mode
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \return -1 on error, 0 means disabled, 1 enabled
+ */
+RTLSDR_API int rtlsdr_get_offset_tuning(rtlsdr_dev_t *dev);
+
 /* streaming functions */
 
 RTLSDR_API int rtlsdr_reset_buffer(rtlsdr_dev_t *dev);