DriverKit IOUSBHostInterface iterator always empty

I'm trying to iterate through a USB device but the iterator is always empty or contains only the matched interface:

Single interface in Iterator
This happens when my driver matches against the interface. Because I need to use 2 interfaces (control and cdc), I try to open the IOUSBHostDevice (copied from the interface) and iterate through the rest, but I only get the interface my dext matched with.

Empty Iterator
I decided to match against USB communication devices, thinking things would be different. However, this time the interface iterator is completely empty (provider is IOUSBHostDevice).

Here's a snippet of my code before iterating with IOUSBHostDevice->CopyInterface():

    // teardown the configured interfaces.
    result = device->SetConfiguration(ivars->Config, true);
    __Require_noErr_Action(result, _failure_Out,
        ELOG("IOUSBHostDevice::SetConfiguration failed 0x%x", result));
    
    // open usb device
    result = device->Open(this, 0, 0);
    __Require_noErr_Action(result, _failure_Out,
                           ELOG("Failed to open IOUSBHostDevice"));
    
    // Get interface iterator
    result = device->CreateInterfaceIterator(&iterRef);
    __Require_noErr_Action(result, _failure_Out,
                           ELOG("IOUSBHostDevice::CreateInterfaceIterator failed  failed: 0x%x", result));