Helpdesk

Hello JoyPi Support,

I'm experiencing a critical issue with the JoyPi Advanced joystick on Raspberry Pi 4 Model B (kernel 6.12.62). The ADC fails with "GPIO busy" error.

SYSTEM:
- Pi 4 Model B Rev 1.5
- Raspberry Pi OS Bookworm (Debian 12)
- Kernel: 6.12.62+rpt-rpi-v8
- Python 3.13.5
- JoyPiAdvanced 0.0.0

PROBLEM:
The kernel SPI driver claims GPIO8 as "spi0 CS0", preventing the JoyPi library from accessing it.

ERROR:

Hello JoyPi Support,

I'm experiencing a critical issue with the JoyPi Advanced joystick on Raspberry Pi 4 Model B (kernel 6.12.62). The ADC fails with "GPIO busy" error.

SYSTEM:
- Pi 4 Model B Rev 1.5
- Raspberry Pi OS Bookworm (Debian 12)
- Kernel: 6.12.62+rpt-rpi-v8
- Python 3.13.5
- JoyPiAdvanced 0.0.0

PROBLEM:
The kernel SPI driver claims GPIO8 as "spi0 CS0", preventing the JoyPi library from accessing it.

ERROR: lgpio.error: 'GPIO busy'

ROOT CAUSE:
The spi-cs-extend device tree overlay fails to load: $ sudo dtoverlay spi-cs-extend

Failed to apply overlay '0_spi-cs-extend' (kernel)

ATTEMPTED SOLUTIONS (ALL FAILED):
- Added user to spi/gpio groups
- Disabled shutdown.service
- Recompiled overlay from joy-it.net
- Rebooted multiple times
- Ran installJoyPiAdvanced.sh

Even the official example code fails:
/opt/Joy-Pi/joypiadvanced/data/knowledgebase/data/joystick/raspberrypi/code/joystick.py

QUESTIONS:
1. Is spi-cs-extend compatible with kernel 6.12?
2. Can you provide an updated overlay for modern kernels?
3. Is there an alternative configuration for Pi 4 with current OS?

The overlay exists at /boot/firmware/overlays/spi-cs-extend.dtbo (dated Mar 16 2024) but kernel rejects it.

Full diagnostics available if needed. Thank you for your help!

ATTEMPTED SOLUTIONS (ALL FAILED):
- Added user to spi/gpio groups
- Disabled shutdown.service
- Recompiled overlay from joy-it.net
- Rebooted multiple times
- Ran installJoyPiAdvanced.sh

Even the official example code fails:
/opt/Joy-Pi/joypiadvanced/data/knowledgebase/data/joystick/raspberrypi/code/joystick.py

QUESTIONS:
1. Is spi-cs-extend compatible with kernel 6.12?
2. Can you provide an updated overlay for modern kernels?
3. Is there an alternative configuration for Pi 4 with current OS?

The overlay exists at /boot/firmware/overlays/spi-cs-extend.dtbo (dated Mar 16 2024) but kernel rejects it.

Full diagnostics available if needed. Thank you for your help!