[Libusb-win32-devel] devices list is empty on Windows x64

[karlhoover <kar...@gm...>]

We use libusb in our microscope automation system. I've updated to
libusb-win32 1.2.2.0

The following code works fine, and prints out a buss name bus-0 on both
platforms. It finds, for example, my Velleman 8055 on x86 but bus->devices
list is a null pointer on x64 on identical hardware. I've triple checked the
installation of the libusb0.sys and libusb0.dll files. I temporarily disable
digital driver signing enforcement when I boot Windows 7, so I do not think
this is a problem with driver signing. Any ideas what I should try next?

Karl 




   usb_init();
   usb_find_busses();
   usb_find_devices();
   busses = usb_get_busses();

   for (bus = busses; bus; bus = bus->next) {
	  std::cout << "buss dirname " << bus->dirname << std::endl;
      for (dev = bus->devices; dev; dev = dev->next) {  //........


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