File allow-non-root-controller-access.patch of Package steam
Index: steam/lib/udev/rules.d/99-steam-controller-perms.rules
===================================================================
--- steam.orig/lib/udev/rules.d/99-steam-controller-perms.rules
+++ steam/lib/udev/rules.d/99-steam-controller-perms.rules
@@ -1,7 +1,7 @@
# Valve USB devices
SUBSYSTEM=="usb", ATTRS{idVendor}=="28de", MODE="0666"
# Steam Controller udev write access
-KERNEL=="uinput", SUBSYSTEM=="misc", TAG+="uaccess"
+KERNEL=="uinput", GROUP="games", MODE:="0660", SUBSYSTEM=="misc", OPTIONS+="static_node=uinput"
# Valve HID devices over USB hidraw
KERNEL=="hidraw*", ATTRS{idVendor}=="28de", MODE="0666"