diff options
| -rw-r--r-- | include/rtl-sdr.h | 9 | ||||
| -rw-r--r-- | src/librtlsdr.c | 11 |
2 files changed, 20 insertions, 0 deletions
diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h index fe64bea..3ed13ae 100644 --- a/include/rtl-sdr.h +++ b/include/rtl-sdr.h @@ -380,6 +380,15 @@ RTLSDR_API int rtlsdr_read_async(rtlsdr_dev_t *dev, */ RTLSDR_API int rtlsdr_cancel_async(rtlsdr_dev_t *dev); +/*! + * Enable or disable the bias tee on GPIO PIN 0. + * + * \param dev the device handle given by rtlsdr_open() + * \param on 1 for Bias T on. 0 for Bias T off. + * \return -1 if device is not initialized. 0 otherwise. + */ +RTLSDR_API int rtlsdr_set_bias_tee(rtlsdr_dev_t *dev, int on); + #ifdef __cplusplus } #endif diff --git a/src/librtlsdr.c b/src/librtlsdr.c index e2c3c73..b369a5d 100644 --- a/src/librtlsdr.c +++ b/src/librtlsdr.c @@ -1937,3 +1937,14 @@ int rtlsdr_i2c_read_fn(void *dev, uint8_t addr, uint8_t *buf, int len) return -1; } + +int rtlsdr_set_bias_tee(rtlsdr_dev_t *dev, int on) +{ + if (!dev) + return -1; + + rtlsdr_set_gpio_output(dev, 0); + rtlsdr_set_gpio_bit(dev, 0, on); + + return 0; +} |