w1_gpio kernel module missing

[Philos]

Hello everyone!

I have installed the latest version of archlinux arm (Linux archpi 5.1.11-1-ARCH) on my aarch64 Raspberry Pi 3B and am trying to use a DS18B20 Temperature sensor. The previously used Raspbian OS worked fine with the necessary configurations, which I have also set on this build:

/boot/config.txt contains 'dtoverlay=w1-gpio,gpiopin=<pin>'
/etc/modules-load.d/ contains a config file loading the required modules 'w1_gpio' and 'w1_therm'.

The problem is the following:
lsmod shows that w1_therm is loaded, but not w1_gpio. Additionally a modprobe w1_gpio (and modprobe w1-gpio) throws:
'modprobe: FATAL: Module w1_gpio not found in directory /lib/modules/5.1.11-1-ARCH'

Obviously /sys/bus/w1/devices shows nothing.

Why is the module missing and how can one get it running on archlinux arm?


Greetings,
Philos