This is a wrapper for PCSX2 for Retropie, it uses a simple python wrapper to intercept a key combination to exit the emulator on keypress
Copy everything but the README to /opt/retropie/configs/all
This Python script requires evdev and psutil which can both be installed using pip
pip install evdev
pip install psutil
Make the scripts executable
chmod +x runcommand-onstart.sh
chmod +x runcommand-onend.sh
chmod +x gamepad_wrapper.py
This bash script is executed by RetroArch when any ROM is loaded. If the system is PS2, then this executes the gamepad_wrapper.py script.
If it is any other system this does not run. This should be able to be modified for any system by just updating the commands
This Python script requires evdev and psutil which can both be installed using pip
This will start a Python listener using evdev that upon the specified key press will kill the PCSX2 app (which also shouldn't be too hard to modify for other systems )
You may need to edit the following line
gamepad = InputDevice('/dev/input/event19')
And edit /dev/input/event19 with whichever one your controller is recognized as
When the specified key combo is pressed, it will kill the PCSX2 process, then RetroArch will run the runcommand-onend.sh script
This Script is executed by RetroArch when the emulator exits and is only here to cleanup the Python wrapper process
There should be nothing additional needed as these scripts should execute each time that RetroArch uses runcommand to launch an emulator