"Could not write to gpio" error on Debian 12 bookworm #8
Description
I just installed the latest 64-bit Raspberry Pi OS via rpi-imager on a Pi Zero 2 W. Everything seems to install and work fine, except that I can't get the bellsystem daemon to write to GPIO. Has anybody successfully done this recently? I realize that this project is basically abandoned, but it's tantalizing to have it install and work except for what may simply be permissions.
I've installed rpi.gpio-common and run the command to add user 'pi' to all the groups suggested in this thread, but 'pi' was already a user in these groups.
Any help would be appreciated.