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by bsimpson 533 days ago
It's TBD how it will handle extra buttons. I believe Valve has a kernel module for the Steam Deck controller.

Lenovo's current handheld exposes an Xbox controller and a USB device with extra buttons. Handheld Daemon synthesizes them into a virtual PlayStaton controller. If you tried to use the current SteamOS without Handheld Daemon, the 6 extra buttons wouldn't work. The community is waiting to see if Valve ships a more robust solution that Linux can standardize on, or if we'll still be using daemons like HHD for devices that don't have official Valve support.