update startup scripts and docs to support evdev joystick interposer

Author: danisla

.devcontainer/features/desktop-selkies/src/start-selkies.sh

@@ -44,7 +44,6 @@ sudo chmod 777 /dev/input/js*
 if [ -e "/usr/lib/x86_64-linux-gnu/selkies_joystick_interposer.so" ]; then
     export SELKIES_INTERPOSER='/usr/$LIB/selkies_joystick_interposer.so'
     export LD_PRELOAD="${SELKIES_INTERPOSER}${LD_PRELOAD:+:${LD_PRELOAD}}"
-    export SDL_JOYSTICK_DEVICE=/dev/input/js0
 fi
 
 # Start desktop environment

addons/example/entrypoint.sh

@@ -12,10 +12,10 @@ until [ -d "${XDG_RUNTIME_DIR}" ]; do sleep 0.5; done
 # Configure joystick interposer
 export SELKIES_INTERPOSER='/usr/$LIB/selkies_joystick_interposer.so'
 export LD_PRELOAD="${SELKIES_INTERPOSER}${LD_PRELOAD:+:${LD_PRELOAD}}"
-export SDL_JOYSTICK_DEVICE=/dev/input/js0
 mkdir -pm1777 /dev/input || sudo-root mkdir -pm1777 /dev/input || echo 'Failed to create joystick interposer directory'
 touch /dev/input/js0 /dev/input/js1 /dev/input/js2 /dev/input/js3 || sudo-root touch /dev/input/js0 /dev/input/js1 /dev/input/js2 /dev/input/js3 || echo 'Failed to create joystick interposer devices'
-chmod 777 /dev/input/js* || sudo-root chmod 777 /dev/input/js* || echo 'Failed to change permission for joystick interposer devices'
+touch /dev/input/event1000 /dev/input/event1001 /dev/input/event1002 /dev/input/event1003 || sudo-root touch /dev/input/event1000 /dev/input/event1001 /dev/input/event1002 /dev/input/event1003 || echo 'Failed to create joystick interposer devices'
+chmod 777 /dev/input/js* /dev/input/event* || sudo-root chmod 777 /dev/input/js* /dev/input/event* || echo 'Failed to change permission for joystick interposer devices'
 
 # Set default display
 export DISPLAY="${DISPLAY:-:20}"

addons/example/selkies-gstreamer-entrypoint.sh

@@ -12,7 +12,6 @@ until [ -d "${XDG_RUNTIME_DIR}" ]; do sleep 0.5; done
 # Configure joystick interposer
 export SELKIES_INTERPOSER='/usr/$LIB/selkies_joystick_interposer.so'
 export LD_PRELOAD="${SELKIES_INTERPOSER}${LD_PRELOAD:+:${LD_PRELOAD}}"
-export SDL_JOYSTICK_DEVICE=/dev/input/js0
 
 # Set default display
 export DISPLAY="${DISPLAY:-:20}"

docs/component.md

@@ -186,15 +186,15 @@ The following paths are required to exist for the Joystick Interposer to pass th
 ```bash
 sudo mkdir -pm1777 /dev/input
 sudo touch /dev/input/js0 /dev/input/js1 /dev/input/js2 /dev/input/js3
-sudo chmod 777 /dev/input/js*
+sudo touch /dev/input/event1000 /dev/input/event1001 /dev/input/event1002 /dev/input/event1003
+sudo chmod 777 /dev/input/js* /dev/input/event*
 ```
 
 The following environment variables are required to be set in the environment each application is being run in to receive the joystick/gamepad input.
 
 ```bash
 export SELKIES_INTERPOSER='/usr/$LIB/selkies_joystick_interposer.so'
 export LD_PRELOAD="${SELKIES_INTERPOSER}${LD_PRELOAD:+:${LD_PRELOAD}}"
-export SDL_JOYSTICK_DEVICE=/dev/input/js0
 ```
 
 You can replace `/usr/$LIB/selkies_joystick_interposer.so` with any non-root path of your choice if using the `.tar.gz` tarball.

docs/start.md

@@ -185,10 +185,10 @@ export DISPLAY="${DISPLAY:-:0}"
 # Configure the Joystick Interposer
 export SELKIES_INTERPOSER='/usr/$LIB/selkies_joystick_interposer.so'
 export LD_PRELOAD="${SELKIES_INTERPOSER}${LD_PRELOAD:+:${LD_PRELOAD}}"
-export SDL_JOYSTICK_DEVICE=/dev/input/js0
 sudo mkdir -pm1777 /dev/input
 sudo touch /dev/input/js0 /dev/input/js1 /dev/input/js2 /dev/input/js3
-sudo chmod 777 /dev/input/js*
+sudo touch /dev/input/event1000 /dev/input/event1001 /dev/input/event1002 /dev/input/event1003
+sudo chmod 777 /dev/input/js* /dev/input/event*
 
 # Commented sections are optional but may be mandatory based on setup