[meta-raspberrypi] Problem with adding udev rules

[Markus W <markus4dev@gmail.com>]

Hi!

I want to append the rules in the
recipe-core/udev/udev-rules-rpi/99-com.rules with the rules below from
within my own recipe. I can´t figure out how to do that.

I have tried to add those rules as separate rules file in a recipe in
my own layer. After the build I can see that the rules file is in the
correct directory /etc/udev/rules.d (next to 99-com.rules) but the
rules didn't get applied. The groups below I have created by
inheriting the useradd class (GROUPADD_PARAM_${PN} = "-r spi; -r i2c;
-r gpio") in a different layer with a higher priority than the layer
with the rules recipe.

Not sure why this is not working. Any suggestions?

90-interfaces.rules file:

SUBSYSTEM=="input", GROUP="input", MODE="0660"
SUBSYSTEM=="i2c-dev", GROUP="i2c", MODE="0660"
SUBSYSTEM=="spidev", GROUP="spi", MODE="0660"
SUBSYSTEM=="bcm2835-gpiomem", GROUP="gpio", MODE="0660"

SUBSYSTEM=="gpio", GROUP="gpio", MODE="0660"
SUBSYSTEM=="gpio*", PROGRAM="/bin/sh -c '\
chown -R root:gpio /sys/class/gpio && chmod -R 770 /sys/class/gpio;\
chown -R root:gpio /sys/devices/virtual/gpio && chmod -R 770
/sys/devices/virtual/gpio;\
chown -R root:gpio /sys$devpath && chmod -R 770 /sys$devpath\
'"

Regards,
Markus