kernel driver problem for program using libusb

Hello everyone,

this is one part of my pc coding which use libusb-win32.

for (bus = usb_get_busses(); bus; bus = bus->next)

{

for (dev = bus->devices; dev; dev = dev->next)

{

if (dev->descriptor.idvendor == 0x0471)

{

udev = usb_open(dev);

printf ("success opening!\n");}

else

printf("can't open descriptor.idvendor == 0x0471\n");

}

}

the 0x0471 is define in my firmware coding:DeviceDescriptor[4]=0x0471;

For my pc coding, it can't open dev->descriptor.idvendor == 0x0471;

what shall i do to make it success openning 0x0471？ Does i need include the related defined device descriptor in my firmware coding to my pc coding?

your help will be very much appreciated!!

Thanks and regards,

Summer