(1.0+) architecture relies on existing, digitally signed kernel drivers as backends. Windows · libusb/libusb Wiki - GitHub
On Windows, accessing USB devices from user-space is historically more complex due to security restrictions. Windows requires a specific kernel driver to "claim" a device before a user-space application can read/write to it. libusb driver 64 bit
If you have already installed a driver and it isn't working: Open . Find your device, right-click, and select Uninstall device . (1.0+) architecture relies on existing
// Close the USB device libusb_close(handle); dev = libusb_open_device_with_vid_pid(ctx
libusb_init(&ctx); dev = libusb_open_device_with_vid_pid(ctx, 0x1234, 0x5678); if (!dev) fprintf(stderr, "Device not found\n"); return 1;
// Clean up libusb_free_device_list(devices, 1); libusb_exit(NULL);