“This means that players can pair their PS4 controller directly to their PC and use all the configurability options available to the Steam Controller, including use of the PS4 touchpad and gyro,” said Lars Doucet, developer of Defender’s Quest in a presentation for enhanced controller support.
This is just one of many controllers that will receive such support. There will be support for all popular controllers to Steam’s API. While this would allow consumers the ability to use the controller of their choice rather than Valve’s Steam Controller or the Xbox 360 or Xbox One controller, it also negates the need of third-party software such as Joy2Key in order to achieve compatibility. From a developer standpoint it allows games to ship with a wider choice of input support for free.
“Believe it or not, when you use the PS4 Controller through the Steam API, it’s exactly the same as a Steam Controller. You make the exact same API calls, you only get actions, not inputs, and the Steam API takes care of everything,” Doucet claimed.