To configure the DualShock 4 controller on Linux via Steam the Steam application must first be installed. But aside from that, Valve offers up a custom controller mapping tool that users can use to map games to the PS4 controller with ease manually. For starters, it’s possible to configure the Steam client to adopt other controller styles (like the Xbox) and add it to the PS4. The Steam method is the obvious way to go for the PS4 controller support on Linux for several reasons. Valve’s hard work on the Linux version of Steam means that users can enjoy excellent support for third-party video game controllers such as the Sony DualShock 4 (PS4) controller, Nintendo Switch, Microsoft Xbox One and more.
