return RTLSDR_TUNER_UNKNOWN (0) on failure of rtlsdr_get_tuner_type

1 files changed, 1 insertions, 1 deletions

diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h
index ec0b4c8..5eef94a 100644
--- a/include/rtl-sdr.h
+++ b/include/rtl-sdr.h
@@ -138,7 +138,7 @@ enum rtlsdr_tuner {
  * Get the tuner type.
  *
  * \param dev the device handle given by rtlsdr_open()
- * \return <= 0 on error, tuner type otherwise
+ * \return RTLSDR_TUNER_UNKNOWN on error, tuner type otherwise
  */
 RTLSDR_API enum rtlsdr_tuner rtlsdr_get_tuner_type(rtlsdr_dev_t *dev);