Kyle Keen
11 years ago
committed by
Steve Markgraf
parent
003bd51167
commit
27c0929939
@ -0,0 +1,304 @@ |
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/*
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* Copyright (C) 2014 by Kyle Keen <keenerd@gmail.com> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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/* a collection of user friendly tools
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* todo: use strtol for more flexible int parsing |
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* */ |
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#include <string.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#ifndef _WIN32 |
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#include <unistd.h> |
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#else |
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#include <windows.h> |
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#include <fcntl.h> |
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#include <io.h> |
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#define _USE_MATH_DEFINES |
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#endif |
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#include <math.h> |
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#include "rtl-sdr.h" |
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double atofs(char *s) |
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/* standard suffixes */ |
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{ |
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char last; |
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int len; |
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double suff = 1.0; |
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len = strlen(s); |
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last = s[len-1]; |
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s[len-1] = '\0'; |
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switch (last) { |
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case 'g': |
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case 'G': |
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suff *= 1e3; |
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case 'm': |
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case 'M': |
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suff *= 1e3; |
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case 'k': |
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case 'K': |
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suff *= 1e3; |
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suff *= atof(s); |
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s[len-1] = last; |
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return suff; |
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} |
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s[len-1] = last; |
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return atof(s); |
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} |
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double atoft(char *s) |
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/* time suffixes, returns seconds */ |
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{ |
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char last; |
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int len; |
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double suff = 1.0; |
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len = strlen(s); |
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last = s[len-1]; |
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s[len-1] = '\0'; |
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switch (last) { |
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case 'h': |
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case 'H': |
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suff *= 60; |
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case 'm': |
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case 'M': |
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suff *= 60; |
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case 's': |
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case 'S': |
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suff *= atof(s); |
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s[len-1] = last; |
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return suff; |
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} |
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s[len-1] = last; |
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return atof(s); |
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} |
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double atofp(char *s) |
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/* percent suffixes */ |
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{ |
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char last; |
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int len; |
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double suff = 1.0; |
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len = strlen(s); |
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last = s[len-1]; |
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s[len-1] = '\0'; |
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switch (last) { |
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case '%': |
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suff *= 0.01; |
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suff *= atof(s); |
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s[len-1] = last; |
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return suff; |
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} |
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s[len-1] = last; |
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return atof(s); |
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} |
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int nearest_gain(rtlsdr_dev_t *dev, int target_gain) |
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{ |
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int i, r, err1, err2, count, nearest; |
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int* gains; |
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r = rtlsdr_set_tuner_gain_mode(dev, 1); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to enable manual gain.\n"); |
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return r; |
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} |
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count = rtlsdr_get_tuner_gains(dev, NULL); |
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if (count <= 0) { |
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return 0; |
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} |
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gains = malloc(sizeof(int) * count); |
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count = rtlsdr_get_tuner_gains(dev, gains); |
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nearest = gains[0]; |
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for (i=0; i<count; i++) { |
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err1 = abs(target_gain - nearest); |
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err2 = abs(target_gain - gains[i]); |
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if (err2 < err1) { |
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nearest = gains[i]; |
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} |
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} |
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free(gains); |
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return nearest; |
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} |
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int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency) |
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{ |
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int r; |
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r = rtlsdr_set_center_freq(dev, frequency); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to set center freq.\n"); |
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} else { |
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fprintf(stderr, "Tuned to %u Hz.\n", frequency); |
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} |
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return r; |
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} |
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int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate) |
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{ |
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int r; |
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r = rtlsdr_set_sample_rate(dev, samp_rate); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to set sample rate.\n"); |
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} else { |
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fprintf(stderr, "Sampling at %u S/s.\n", samp_rate); |
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} |
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return r; |
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} |
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int verbose_direct_sampling(rtlsdr_dev_t *dev, int on) |
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{ |
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int r; |
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r = rtlsdr_set_direct_sampling(dev, on); |
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if (r != 0) { |
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fprintf(stderr, "WARNING: Failed to set direct sampling mode.\n"); |
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return r; |
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} |
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if (on == 0) { |
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fprintf(stderr, "Direct sampling mode disabled.\n");} |
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if (on == 1) { |
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fprintf(stderr, "Enabled direct sampling mode, input 1/I.\n");} |
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if (on == 2) { |
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fprintf(stderr, "Enabled direct sampling mode, input 2/Q.\n");} |
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return r; |
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} |
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int verbose_offset_tuning(rtlsdr_dev_t *dev) |
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{ |
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int r; |
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r = rtlsdr_set_offset_tuning(dev, 1); |
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if (r != 0) { |
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fprintf(stderr, "WARNING: Failed to set offset tuning.\n"); |
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} else { |
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fprintf(stderr, "Offset tuning mode enabled.\n"); |
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} |
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return r; |
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} |
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int verbose_auto_gain(rtlsdr_dev_t *dev) |
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{ |
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int r; |
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r = rtlsdr_set_tuner_gain_mode(dev, 0); |
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if (r != 0) { |
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fprintf(stderr, "WARNING: Failed to set tuner gain.\n"); |
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} else { |
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fprintf(stderr, "Tuner gain set to automatic.\n"); |
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} |
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return r; |
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} |
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int verbose_gain_set(rtlsdr_dev_t *dev, int gain) |
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{ |
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int r; |
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r = rtlsdr_set_tuner_gain_mode(dev, 1); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to enable manual gain.\n"); |
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return r; |
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} |
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r = rtlsdr_set_tuner_gain(dev, gain); |
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if (r != 0) { |
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fprintf(stderr, "WARNING: Failed to set tuner gain.\n"); |
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} else { |
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fprintf(stderr, "Tuner gain set to %0.2f dB.\n", gain/10.0); |
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} |
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return r; |
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} |
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int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error) |
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{ |
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int r; |
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if (ppm_error == 0) { |
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return 0;} |
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r = rtlsdr_set_freq_correction(dev, ppm_error); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to set ppm error.\n"); |
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} else { |
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fprintf(stderr, "Tuner error set to %i ppm.\n", ppm_error); |
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} |
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return r; |
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} |
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int verbose_reset_buffer(rtlsdr_dev_t *dev) |
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{ |
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int r; |
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r = rtlsdr_reset_buffer(dev); |
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if (r < 0) { |
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fprintf(stderr, "WARNING: Failed to reset buffers.\n");} |
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return r; |
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} |
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int verbose_device_search(char *s) |
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{ |
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int i, device_count, device, offset; |
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char *s2; |
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char vendor[256], product[256], serial[256]; |
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device_count = rtlsdr_get_device_count(); |
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if (!device_count) { |
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fprintf(stderr, "No supported devices found.\n"); |
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return -1; |
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} |
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fprintf(stderr, "Found %d device(s):\n", device_count); |
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for (i = 0; i < device_count; i++) { |
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rtlsdr_get_device_usb_strings(i, vendor, product, serial); |
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fprintf(stderr, " %d: %s, %s, SN: %s\n", i, vendor, product, serial); |
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} |
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fprintf(stderr, "\n"); |
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/* does string look like raw id number */ |
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device = (int)strtol(s, &s2, 0); |
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if (s2[0] == '\0' && device >= 0 && device < device_count) { |
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fprintf(stderr, "Using device %d: %s\n", |
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device, rtlsdr_get_device_name((uint32_t)device)); |
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return device; |
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} |
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/* does string exact match a serial */ |
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for (i = 0; i < device_count; i++) { |
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rtlsdr_get_device_usb_strings(i, vendor, product, serial); |
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if (strcmp(s, serial) != 0) { |
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continue;} |
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device = i; |
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fprintf(stderr, "Using device %d: %s\n", |
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device, rtlsdr_get_device_name((uint32_t)device)); |
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return device; |
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} |
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/* does string prefix match a serial */ |
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for (i = 0; i < device_count; i++) { |
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rtlsdr_get_device_usb_strings(i, vendor, product, serial); |
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if (strncmp(s, serial, strlen(s)) != 0) { |
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continue;} |
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device = i; |
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fprintf(stderr, "Using device %d: %s\n", |
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device, rtlsdr_get_device_name((uint32_t)device)); |
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return device; |
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} |
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/* does string suffix match a serial */ |
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for (i = 0; i < device_count; i++) { |
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rtlsdr_get_device_usb_strings(i, vendor, product, serial); |
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offset = strlen(serial) - strlen(s); |
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if (offset < 0) { |
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continue;} |
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if (strncmp(s, serial+offset, strlen(s)) != 0) { |
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continue;} |
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device = i; |
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fprintf(stderr, "Using device %d: %s\n", |
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device, rtlsdr_get_device_name((uint32_t)device)); |
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return device; |
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} |
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fprintf(stderr, "No matching devices found.\n"); |
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return -1; |
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} |
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// vim: tabstop=8:softtabstop=8:shiftwidth=8:noexpandtab
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@ -0,0 +1,142 @@ |
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/*
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* Copyright (C) 2014 by Kyle Keen <keenerd@gmail.com> |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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/* a collection of user friendly tools */ |
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/*!
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* Convert standard suffixes (k, M, G) to double |
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* |
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* \param s a string to be parsed |
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* \return double |
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*/ |
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double atofs(char *s); |
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/*!
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* Convert time suffixes (s, m, h) to double |
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* |
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* \param s a string to be parsed |
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* \return seconds as double |
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*/ |
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double atoft(char *s); |
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/*!
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* Convert percent suffixe (%) to double |
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* |
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* \param s a string to be parsed |
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* \return double |
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*/ |
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double atofp(char *s); |
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/*!
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* Find nearest supported gain |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param target_gain in tenths of a dB |
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* \return 0 on success |
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*/ |
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int nearest_gain(rtlsdr_dev_t *dev, int target_gain); |
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/*!
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* Set device frequency and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param frequency in Hz |
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* \return 0 on success |
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*/ |
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int verbose_set_frequency(rtlsdr_dev_t *dev, uint32_t frequency); |
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/*!
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* Set device sample rate and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param samp_rate in samples/second |
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* \return 0 on success |
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*/ |
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int verbose_set_sample_rate(rtlsdr_dev_t *dev, uint32_t samp_rate); |
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/*!
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* Enable or disable the direct sampling mode and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param on 0 means disabled, 1 I-ADC input enabled, 2 Q-ADC input enabled |
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* \return 0 on success |
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*/ |
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int verbose_direct_sampling(rtlsdr_dev_t *dev, int on); |
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/*!
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* Enable offset tuning and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \return 0 on success |
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*/ |
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int verbose_offset_tuning(rtlsdr_dev_t *dev); |
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/*!
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* Enable auto gain and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \return 0 on success |
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*/ |
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int verbose_auto_gain(rtlsdr_dev_t *dev); |
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/*!
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* Set tuner gain and report status on stderr |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param gain in tenths of a dB |
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* \return 0 on success |
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*/ |
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int verbose_gain_set(rtlsdr_dev_t *dev, int gain); |
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/*!
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* Set the frequency correction value for the device and report status on stderr. |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \param ppm_error correction value in parts per million (ppm) |
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* \return 0 on success |
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*/ |
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int verbose_ppm_set(rtlsdr_dev_t *dev, int ppm_error); |
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/*!
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* Reset buffer |
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* |
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* \param dev the device handle given by rtlsdr_open() |
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* \return 0 on success |
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*/ |
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int verbose_reset_buffer(rtlsdr_dev_t *dev); |
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/*!
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* Find the closest matching device. |
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* |
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* \param s a string to be parsed |
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* \return dev_index int, -1 on error |
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*/ |
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int verbose_device_search(char *s); |
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