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Print hackrf_sweep usage with a single fprintf call.

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This commit is contained in:
Martin Ling
2022-07-07 11:29:36 +01:00
parent e8e6784881
commit 01e0702013
1 changed files with 16 additions and 19 deletions
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35
host/hackrf-tools/src/hackrf_sweep.c
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@ -371,26 +371,23 @@ int rx_callback(hackrf_transfer* transfer)
static void usage()
{
fprintf(stderr, "Usage:\n");
fprintf(stderr, "\t[-h] # this help\n");
fprintf(stderr, "\t[-d serial_number] # Serial number of desired HackRF\n");
fprintf(stderr, "\t[-a amp_enable] # RX RF amplifier 1=Enable, 0=Disable\n");
fprintf(stderr,
"\t[-f freq_min:freq_max] # minimum and maximum frequencies in MHz\n");
fprintf(stderr,
"\t[-p antenna_enable] # Antenna port power, 1=Enable, 0=Disable\n");
fprintf(stderr, "\t[-l gain_db] # RX LNA (IF) gain, 0-40dB, 8dB steps\n");
fprintf(stderr, "\t[-g gain_db] # RX VGA (baseband) gain, 0-62dB, 2dB steps\n");
fprintf(stderr,
"\t[-w bin_width] # FFT bin width (frequency resolution) in Hz, 2445-5000000\n");
fprintf(stderr, "\t[-1] # one shot mode\n");
fprintf(stderr, "\t[-N num_sweeps] # Number of sweeps to perform\n");
fprintf(stderr, "\t[-B] # binary output\n");
fprintf(stderr, "\t[-I] # binary inverse FFT output\n");
fprintf(stderr, "\t-r filename # output file\n");
fprintf(stderr, "\n");
fprintf(stderr, "Output fields:\n");
fprintf(stderr,
"Usage:\n"
"\t[-h] # this help\n"
"\t[-d serial_number] # Serial number of desired HackRF\n"
"\t[-a amp_enable] # RX RF amplifier 1=Enable, 0=Disable\n"
"\t[-f freq_min:freq_max] # minimum and maximum frequencies in MHz\n"
"\t[-p antenna_enable] # Antenna port power, 1=Enable, 0=Disable\n"
"\t[-l gain_db] # RX LNA (IF) gain, 0-40dB, 8dB steps\n"
"\t[-g gain_db] # RX VGA (baseband) gain, 0-62dB, 2dB steps\n"
"\t[-w bin_width] # FFT bin width (frequency resolution) in Hz, 2445-5000000\n"
"\t[-1] # one shot mode\n"
"\t[-N num_sweeps] # Number of sweeps to perform\n"
"\t[-B] # binary output\n"
"\t[-I] # binary inverse FFT output\n"
"\t-r filename # output file\n"
"\n"
"Output fields:\n"
"\tdate, time, hz_low, hz_high, hz_bin_width, num_samples, dB, dB, . . .\n");
}