#include <sys/types.h>#include <stdio.h>#include <stdlib.h>#include <strings.h>#include <sys/ioctl.h>#include <unistd.h>#include <fcntl.h>#include "ixjuser.h"int main(int argc, char *argv[]){  int ixj, dsp, ver;  char pname[80], maxrings;  if(argc >= 2)    sprintf(pname, "/dev/ixj%s", argv[1]);  else    sprintf(pname, "/dev/ixj0");  ixj = open(pname, O_RDWR);  dsp = ioctl(ixj, IXJCTL_DSP_TYPE);  ver = ioctl(ixj, IXJCTL_DSP_VERSION);  printf("DSP type 0x%x, DSP Version 0x%x\n", dsp, ver);  maxrings = atoi(argv[2]);  ioctl(ixj, IXJCTL_MAXRINGS, maxrings);  if(!ioctl(ixj, IXJCTL_RING))  {    printf("No Answer\n");  }  else  {    printf("Phone answered\n");  }  close(ixj);}