On Tue, Nov 1, 2016, at 04:06 PM, Vincent Scheib wrote: > I'm curious for an early feasibility check of using the Generic Sensor > API to support Gamepads. > > I have mixed initial instincts, given that Gamepads are fairly > specialized HIDs with a cluster of sensors that are appropriate to > manage in a first class way. However, those working on the Generic > Sensor API may have reasonable arguments for how this may come > together nicely after all. This is an interesting idea, to be sure, but one thing that I don't see any mention of in the Generic Sensor API spec is the concept of a collection of sensors. Obviously one of the most important pieces of the Gamepad API is that it exposes all the buttons/axes of each gamepad grouped into a device. If I had a do-over on the Gamepad API I would probably write it as a "Web USB HID" spec instead. The biggest problem we've seen in practice is that devices that look physically very similar can expose very different HID descriptors and the Gamepad API spec doesn't specify how to map from a HID to buttons/axes. Additionally, platform drivers (like the joystick driver on Linux) can have their own layer of mapping and this makes it really hard to present a consistent interface across platforms/devices/browsers. -Ted
Received on Wednesday, 2 November 2016 14:42:03 UTC