Resolved InputDevices.deviceConnected does not fire on Quest

Unity 2019.3.0f6
I've made a small script that should load the devices found. While it seems to work in the Editor (on a Rift) i get not a single event that something has been connected or found.

If i use InputDevices.GetDeviceAtXRNode(XRNode.RightHand) the system finds the device.

Is that a bug or does the Quest just not work with that?

Thanks

 

Hello and thank you for the reply.
Yes, it seems that the devices are allready connected even bevore the OnEnable() function.
So i just let my InitializeDevices-Method run in the Start again. On the Rift it will be called mutliple times anyway so it does not matter

Code (CSharp):

1. private void Awake()
2.         {
3.             if (Instance == null)
4.                 Instance = this;
5.  
6.             rightCtrlChara = (InputDeviceCharacteristics.Controller | InputDeviceCharacteristics.TrackedDevice | InputDeviceCharacteristics.HeldInHand | InputDeviceCharacteristics.Right);
7.             leftCtrlChara  = (InputDeviceCharacteristics.Controller | InputDeviceCharacteristics.TrackedDevice | InputDeviceCharacteristics.HeldInHand | InputDeviceCharacteristics.Left);
8.         }
9.  
10.         private void Start()
11.         {
12.             InitializeDevices();
13.         }
14.  
15.         private void InitializeDevices()
16.         {
17.             List<InputDevice> devices = new List<InputDevice>();
18.  
19.             InputDevices.GetDevicesWithCharacteristics(rightCtrlChara, devices);
20.             if (devices.Count > 0)
21.                 rightCtrl = devices[0];
22.  
23.             devices.Clear();
24.  
25.             InputDevices.GetDevicesWithCharacteristics(leftCtrlChara, devices);
26.             if (devices.Count > 0)
27.                 leftCtrl = devices[0];
28.         }
29.  
30.         private void OnDeviceConnected(InputDevice device)
31.         {
32.             InitializeDevices();
33.         }
34.  
35.         private void OnDeviceDisconnected(InputDevice device)
36.         {
37.             InitializeDevices();
38.         }
39.  
40.         void OnEnable()
41.         {
42.             InputDevices.deviceConnected += OnDeviceConnected;
43.             InputDevices.deviceDisconnected += OnDeviceDisconnected;
44.         }
45.  
46.         private void OnDisable()
47.         {
48.             InputDevices.deviceConnected -= OnDeviceConnected;
49.             InputDevices.deviceDisconnected -= OnDeviceDisconnected;
50.         }

 

This is still an issue in 2020.17f1

A catch-all solution, while we wait for a fix, is a coroutine...

Code (CSharp):

1.  
2. private void Start()
3.     {
4.         StartCoroutine(InitializeDevices());
5.     }
6.  
7. IEnumerator InitializeDevices()
8.     {
9.         WaitForEndOfFrame wait = new WaitForEndOfFrame();
10.         List<InputDevice> devices = new List<InputDevice>();
11.         InputDevices.GetDevices(devices);
12.         while (devices.Count == 0)
13.         {
14.             yield return wait;
15.             InputDevices.GetDevices(devices);
16.         }
17.         foreach (InputDevice device in devices)
18.         {
19. // Do stuff...
20.         }
21.     }

 

Hey @Lumen-Digital, can you file a bug to make sure this lands in our backlog so the team can help resolve this issue?