使用win10 api开发HID设备，HidDevice.FromIdAsync返回0

Question

我有个HID手柄，想要通过win 10提供的api来收发报告。但是HidDevice.FromIdAsync()总是返回null，可以确定的有以下：

1. 在manifest中已经声明了设备

2. 使用HidDevice.GetDeviceSelector()和Enumeration.DeviceInformation.FindAllAsync()能获得正确的设备信息

 string selector = HidDevice.GetDeviceSelector(UsagePage,UsageId,Vid,Pid);
var deviceCollection = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(selector);

            if (deviceCollection.Count == 0)
                return "No game pad controller found!";

            for (int i = 0; i < deviceCollection.Count && i < MaxControllers;i++)
            {
                var _device = await Windows.Devices.HumanInterfaceDevice.HidDevice.FromIdAsync(deviceCollection[i].Id, Windows.Storage.FileAccessMode.ReadWrite);
                if (_device == null)
                {
                    try
                    {
                        var deviceAccessStatus = DeviceAccessInformation.CreateFromId(deviceCollection[i].Id).CurrentStatus;
                        switch (deviceAccessStatus)
                        {
                            case DeviceAccessStatus.DeniedByUser:
                                return "User denied the access!";
                            case DeviceAccessStatus.DeniedBySystem:
                                return "System denied the access!";
                        }
                    }
                    catch { }
                    return "Failed to connect to the controller!";
                }
                Controllers.Add(new Controller(_device));
            }