RE: PPK2 - Linux Arch

Washee — Sun, 24 Aug 2025 09:21:26 GMT

Well... I think I solved it by myself.

I had a closer look to the linked nrf-udev github repo: https://github.com/NordicSemiconductor/nrf-udev/tree/main/nrf-udev_1.0.1-all/lib/udev/rules.d

And replaced my "99-usb.rules" from /etc/udev/rules.d/ with those two:

# 71-nrf.rules
ACTION!="add", SUBSYSTEM!="usb_device", GOTO="nrf_rules_end"

# Set /dev/bus/usb/*/* as read-write for all users (0666) for Nordic Semiconductor devices
SUBSYSTEM=="usb", ATTRS{idVendor}=="1915", MODE="0666"

# Flag USB CDC ACM devices, handled later in 99-mm-nrf-blacklist.rules
# Set USB CDC ACM devnodes as read-write for all users
KERNEL=="ttyACM[0-9]*", SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ATTRS{idVendor}=="1915", MODE="0666", ENV{NRF_CDC_ACM}="1"

LABEL="nrf_rules_end"

# 99-modemmmanager-acm-fix.rules
# Previously flagged nRF USB CDC ACM devices shall be ignored by ModemManager
ENV{NRF_CDC_ACM}=="1", ENV{ID_MM_CANDIDATE}="0", ENV{ID_MM_DEVICE_IGNORE}="1"

This solved my problem!

Everything seems to work like a charm.

This case may help other folks, who struggle setting their ppk2 up in linux.

- the path for jlink is super important "/opt/SEGGER/JLink/"

- the correct /etc/udev/rules.d/-rules are important