negative value for gamepad id

[ylafon]

While looking at https://github.com/w3ctag/design-reviews/issues/430 during our F2F, we figure out that section 3.2 is mandating gamepad's index to be -1. Gamepad Index definition states that it is a positive integer, so an issue must be files on Gamepad to document the delegation of identification of the gamepad when the index is negative (or with a specific value of -1). You might also want to defined a specific value to achieve the same for the gamepad id.

[ylafon]

Just to reiterate, as negative values are in direct contradiction with the Gamepad spec, please work with them to figure out a way forward (allowing negative values with a "reserved" definition, register specific positive values for that or anything that would solve this conflict). Thanks!

[Manishearth]

https://github.com/immersive-web/webxr-gamepads-module/issues/27

[himorin]

@toji @cabanier we have an answer from gamepads spec's editors as https://github.com/w3c/gamepad/pull/158#issuecomment-1888207277 is it possible to consider of fix within gamepads module of WebXR?

/cc @Manishearth

[Manishearth]

It seems like Gamepad told us to continue doing whatever we're doing so I'm not sure if there's anything more to be done here.

We can potentially say we are modifying that spec? Not sure if that's a good path.