uhd

#include <stdio.h>

#include <stdlib.h>

#include <sys/types.h>

#include <fcntl.h>

#include <sys/ioctl.h>

#include "usrp1_e.h"

// Usage: usrp1_e_spi w|rb slave data

int main(int argc, char *argv[])

{

        int fp, slave, data, ret;

        struct usrp_e_spi spi_dat;

        if (argc < 4) {

                printf("Usage: usrp1_e_spi w|rb slave data\n");

                exit(-1);

        }

        slave = atoi(argv[2]);

        data = atoi(argv[3]);

        fp = open("/dev/usrp1_e0", O_RDWR);

        printf("fp = %d\n", fp);

        spi_dat.slave = slave;

        spi_dat.data = data;

        spi_dat.length = 2;

        spi_dat.flags = 0;

        if (*argv[1] == 'r') {

                spi_dat.readback = 1;

                ret = ioctl(fp, USRP_E_SPI, &spi_dat);

                printf("Data returned = %d\n", ret);

        } else {

                spi_dat.readback = 0;

                ioctl(fp, USRP_E_SPI, &spi_dat);

        }

        return 0;

}