How to fetch hard drive details (serial number, manufacturer) programmatically in QNX?

Question

fHow to fetch hard drive details (serial number, manufacturer) programmatically QNX linux. Can I read it directly from filesystem ? or what are the other way of fetching hard disk details ?

Tried following:

if((fd = open (argv[1], O_RDONLY)) == -1) {
  fprintf(stderr, "Error with open() on %s.  Make sure it exists.\n", argv[1]);
  perror (open );
  exit(EXIT_FAILURE);
}


error = devctl(fd, DCMD_CAM_DEV_SERIAL_NUMBER, buf, len, NULL);

As a result i am getting only: 2GB NANDrive 300003

How to fetch manufacturer and other info like type/model/path on filesystem etc.