can't open gpio

[DG1FI]

since yesterday, pironman don't start - here there error:

Traceback (most recent call last):
File "/opt/pironman5/venv/bin/pironman5-service", line 6, in
sys.exit(main())
^^^^^^
File "/opt/pironman5/venv/lib/python3.11/site-packages/pironman5/init.py", line 47, in main
from pm_auto.ws2812 import RGB_STYLES
File "/opt/pironman5/venv/lib/python3.11/site-packages/pm_auto/ws2812.py", line 5, in
import board
File "/opt/pironman5/venv/lib/python3.11/site-packages/board.py", line 45, in
from adafruit_blinka.board.raspberrypi.raspi_5 import *
File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/board/raspberrypi/raspi_5.py", line 6, in
from adafruit_blinka.microcontroller.bcm2712 import pin
File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/bcm2712/pin.py", line 7, in
from adafruit_blinka.microcontroller.generic_linux.lgpio_pin import Pin
File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/lgpio_pin.py", line 31, in
CHIP = _get_gpiochip()
^^^^^^^^^^^^^^^
File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/lgpio_pin.py", line 26, in _get_gpiochip
return lgpio.gpiochip_open(int(dev.name[-1]))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/lgpio.py", line 645, in gpiochip_open
return _u2i(handle)
^^^^^^^^^^^^
File "/usr/lib/python3/dist-packages/lgpio.py", line 458, in _u2i
raise error(error_text(v))
lgpio.error: 'can not open gpiochip'

maybe a new kernel with gpio changes or something else...

[DG1FI]

File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/lgpio_pin.py", line 31, in
CHIP = _get_gpiochip()

if i set manual the chip to

CHIP = 10

it works again! seems a new kernel call it not gpiochip0 anymore

[an333]

I have the same problem. It happened right after updating the eeprom to pieeprom-2026-04-14

[DG1FI]

with the new eprom update gpiochip0 is back again and all works fine..

[BuddaPB]

Had the same issue here, this solution worked perfectly, thank you very much

File "/opt/pironman5/venv/lib/python3.11/site-packages/adafruit_blinka/microcontroller/generic_linux/lgpio_pin.py", line 31, in CHIP = _get_gpiochip()

if i set manual the chip to

CHIP = 10

it works again! seems a new kernel call it not gpiochip0 anymore