Doesnt work properly on windows

[pituluk]

1. hid_enumerate doesnt find all devices properly I input VID and PID and it found only 2 out of 3 devices that I can find in dev manager, they differ by collection id

2. hid_get_input_report doesnt work at all, error Get Input/Feature Report DeviceIoControl: (0x00000057) I dont know why it errors out

   std::string getHeadsetDeviceInfo()
   {
   struct hid_device_info* devices = NULL;
   while (devices == NULL)
   {
       devices = hid_enumerate(0x0951, 0x16ed);
   }
   auto iterable = devices;
   while (iterable->next)
   {
       std::wcout << iterable->manufacturer_string << L' ' << iterable->product_string << L' ' << iterable->usage << L' ' << iterable->path << L'\n';
       std::string path = iterable->path;
       if (path.find("Col03") != 0)
       {
           hid_free_enumeration(devices);
           return path;
       }
       iterable = iterable->next;
   }
   hid_free_enumeration(devices);
   return "";
   }
   int main()
   {
   std::string path = getHeadsetDeviceInfo();
   auto device = hid_open_path(path.c_str());
   if (device == NULL)
   {
     std::cout << "Device wrong\n";
     return 0;
   }
   std::vector<unsigned char> vec;
   vec.resize(2048);
   while (true)
   {
   
     int readBytes = hid_get_input_report(device, vec.data(), 2048);
     if (readBytes == 0)
     {
         Sleep(10);
         continue;
     }
     if (readBytes == -1)
     {
         auto err = hid_error(device);
         std::wcout << L"Error reading "<<err<<L'\n';
         break;
     }
     for (int i = 0; i < readBytes; i++)
     {
         printf("%02X ", vec[i]);
     }
     std::cout << '\n';
   }

   I know this code sucks btw I return when Col03 is found but even without that if branch it outputs only Col02 Col03 while in dev manager I can find a device with Col01 too

[Youw]

Doesnt work properly on windows

You've mentioned Windows, should I assume you've tried other platforms (Linux-libusb/Linux-hidraw/macOS) and it works fine?

it found only 2 out of 3 devices

while (iterable->next)
{
    // ...
    iterable = iterable->next;
}

Of course you missed one device. It is returned by hid_enumerate. You should re-vesiti how your while loop works with this implementation.

hid_get_input_report doesnt work at all... I dont know why it errors out

That I cannot know as well. Could be many reasons.

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I suggest you first try hidapitester. If your device works with the tool - the problem is with your implementation, you may use hidapitester as a reference. If the device/API still doesn't work with the tool - first need to check device descriptor and see if it should work at all the way you're trying to.

---

I don't see any immediate issue with HIDAPI. This is an issue tracker, not a support forum. Closing this one for now.

If you find a specific issue with HIDAPI (specially if something works on one platform and doens't work on another, e.g. Windows vs Linux vs macOS) - feel free to re-open/open another one.