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#include <stdio.h>
#include <stdlib.h>
//r820t
#include <rtl-sdr.h>
void read_samples( uint32_t dev_index )
{
const uint32_t SAMPLE_RATE = 2048000;
const int DEFAULT_BUF_LENGTH = (16 * 16384);
uint8_t *buffer=NULL;
int ret, n_read;
static rtlsdr_dev_t *dev = NULL;
//open tunner
ret = rtlsdr_open(&dev, (uint32_t)dev_index);
if ( ret < 0 )
{
printf("Cannot open device %02d\n", dev_index );
return;
}
ret = rtlsdr_set_sample_rate(dev, SAMPLE_RATE);
if ( ret < 0 )
{
printf("Coulnt set sample rate to %d\n", SAMPLE_RATE);
return;
}
ret = rtlsdr_reset_buffer(dev);
if ( ret < 0 )
{
printf("Couldnt reset buffer\n");
return;
}
buffer = malloc(DEFAULT_BUF_LENGTH * sizeof(uint8_t));
ret = rtlsdr_read_sync( dev, buffer, DEFAULT_BUF_LENGTH, &n_read );
if (ret < 0)
{
printf("sync read failed\n");
return;
}
free( buffer );
//close tunner
rtlsdr_close( dev );
printf(" SUCESFULL read\n");
}
int main()
{
int i;
uint32_t dev_num;
dev_num = rtlsdr_get_device_count();
printf("Found %d device(s)\n", dev_num );
printf("List device names:\n");
for (i=0; i<dev_num; i++)
{
char manuf[256], product[256], serial[256];
const char *dn = rtlsdr_get_device_name( i );
printf(" %02d. Device Name: %s\n", i, dn );
read_samples( i );
}
return 0;
}
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