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Allow device to be selected by serial, overriding the selection by index #177

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Allow device to be selected by serial, overriding the selection by index #177

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286f12c
Allow device to be selected by serial, overriding the selection by index
rasilon Nov 16, 2023
ae57e25
Use the rtl_sdr unil function instead
rasilon Nov 16, 2023
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9 changes: 9 additions & 0 deletions dump1090.c
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Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,7 @@ struct {

/* RTLSDR */
int dev_index;
char* serial;
int gain;
int enable_agc;
rtlsdr_dev_t *dev;
Expand Down Expand Up @@ -260,6 +261,7 @@ static long long mstime(void) {
void modesInitConfig(void) {
Modes.gain = MODES_MAX_GAIN;
Modes.dev_index = 0;
Modes.serial = NULL;
Modes.enable_agc = 0;
Modes.freq = MODES_DEFAULT_FREQ;
Modes.filename = NULL;
Expand Down Expand Up @@ -344,6 +346,10 @@ void modesInitRTLSDR(void) {
fprintf(stderr, "No supported RTLSDR devices found.\n");
exit(1);
}
if(Modes.serial != NULL){
Modes.dev_index = rtlsdr_get_index_by_serial(Modes.serial);
printf("Found device with serial %s; selecting device index %d\n",Modes.serial,Modes.dev_index);
}

fprintf(stderr, "Found %d device(s):\n", device_count);
for (j = 0; j < device_count; j++) {
Expand Down Expand Up @@ -2439,6 +2445,7 @@ int getTermRows() {
void showHelp(void) {
printf(
"--device-index <index> Select RTL device (default: 0).\n"
"--device-serial <serial> Select RTL device by USB serial number.\n"
"--gain <db> Set gain (default: max gain. Use -100 for auto-gain).\n"
"--enable-agc Enable the Automatic Gain Control (default: off).\n"
"--freq <hz> Set frequency (default: 1090 Mhz).\n"
Expand Down Expand Up @@ -2507,6 +2514,8 @@ int main(int argc, char **argv) {

if (!strcmp(argv[j],"--device-index") && more) {
Modes.dev_index = atoi(argv[++j]);
} else if (!strcmp(argv[j],"--device-serial") && more) {
Modes.serial = argv[++j];
} else if (!strcmp(argv[j],"--gain") && more) {
Modes.gain = atof(argv[++j])*10; /* Gain is in tens of DBs */
} else if (!strcmp(argv[j],"--enable-agc")) {
Expand Down