Wiki/wiki-rtd/docs/wiki_controllers/steam/steamdeck-neptune.md

Steam Deck: Neptune

The Valve Steam Deck LCD / OLD Controller also known as Neptune

Steam Input support

Yes

Linux Kernel Support

Yes, since 4.18 - hid-steam

Udev rules

# Valve USB devices
SUBSYSTEM=="usb", ATTRS{idVendor}=="28de", MODE="0666"

# Steam Controller udev write access
KERNEL=="uinput", SUBSYSTEM=="misc", MODE="0660", GROUP="input", OPTIONS+="static_node=uinput"

# Valve HID devices over USB hidraw
KERNEL=="hidraw*", ATTRS{idVendor}=="28de", MODE="0666"

# Valve HID devices over bluetooth hidraw
KERNEL=="hidraw*", KERNELS=="*28DE:*", MODE="0666"

What are the Official RetroDECK layouts for the Steam Deck?

• RetroDECK: Steam Deck - Neptune SIMPLE
• RetroDECK: Steam Deck - Neptune FULL