Hi,
I have build an EC kernel driver for my x1e qualcomm laptop to be able to change the keyboard backlight, while everything works as expected, including the sysfs, the keyboard backlight picker does not show.
I have these sysfs entries:
$ ls -la /sys/class/leds/asus::kbd_backlight/
total 0
drwxr-xr-x 3 root root 0 Dec 20 12:52 .
drwxr-xr-x 3 root root 0 Dec 20 12:52 ..
-rw-rw-r-- 1 root input 4096 Dec 20 12:52 brightness
lrwxrwxrwx 1 root root 0 Dec 20 13:09 device → ../../../0018:0B05:0220.0003
-r–r–r-- 1 root root 4096 Dec 20 13:09 max_brightness
drwxr-xr-x 2 root root 0 Dec 20 13:09 power
lrwxrwxrwx 1 root root 0 Dec 20 12:52 subsystem → ../../../../../../../../../../class/leds
-rw-r–r-- 1 root root 0 Dec 20 13:09 trigger
-rw-r–r-- 1 root root 4096 Dec 20 12:52 uevent
Best regards,
Marc