#include <stdio.h>
#include <sys/ioctl.h>
#include <linux/hdreg.h>
#include <sys/fcntl.h>

int main()
{
   struct hd_driveid id;

   int fd = open("/dev/hda", O_RDONLY|O_NONBLOCK);

   if (fd < 0) {
     perror("/dev/hda");
     return 1; }

    if(!ioctl(fd, HDIO_GET_IDENTITY, &id))
     {
       printf("Serial Number=%s\n",id.serial_no);
     }

    return 0;
}

------解决方案--------------------

cat /proc/scsi/usb-storage
  Host scsi1: usb-storage
      Vendor: Kingston
     Product: DataTraveler 2.0
Serial Number: 001478081A5A5C8719160437
    Protocol: Transparent SCSI
   Transport: Bulk
      Quirks:



------解决方案--------------------
mark


------解决方案--------------------
cat /proc/scsi/usb-storage/(usb口在主板上定义ID)