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document gain api

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Dimitri Stolnikov 2012-05-05 12:33:47 +02:00
parent 59198d6342
commit 259e61fb17
1 changed files with 26 additions and 0 deletions
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26
include/rtl-sdr.h
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@ -83,10 +83,36 @@ RTLSDR_API int rtlsdr_set_freq_correction(rtlsdr_dev_t *dev, int ppm);
RTLSDR_API int rtlsdr_get_freq_correction(rtlsdr_dev_t *dev);
/*!
* Set the gain for the device.
* Manual gain mode must be enabled for this to work.
*
* Valid gain values (in tenths of a dB) for the E4000 tuner:
* -10, 15, 40, 65, 90, 115, 140, 165, 190,
* 215, 240, 290, 340, 420, 430, 450, 470, 490
*
* \param dev the device handle given by rtlsdr_open()
* \param gain in tenths of a dB, 115 means 11.5 dB.
* \return 0 on success
*/
RTLSDR_API int rtlsdr_set_tuner_gain(rtlsdr_dev_t *dev, int gain);
/*!
* Get actual gain the device is configured to.
*
* \param dev the device handle given by rtlsdr_open()
* \return < 0 on error, gain in tenths of a dB, 115 means 11.5 dB.
*/
RTLSDR_API int rtlsdr_get_tuner_gain(rtlsdr_dev_t *dev);
/*!
* Set the gain mode (automatic/manual) for the device.
* Manual gain mode must be enabled for the gain setter function to work.
*
* \param dev the device handle given by rtlsdr_open()
* \param manual gain mode, 1 means manual gain mode shall be enabled.
* \return 0 on success
*/
RTLSDR_API int rtlsdr_set_tuner_gain_mode(rtlsdr_dev_t *dev, int manual);
/* this will select the baseband filters according to the requested sample rate */