Puppy on Mac: Keyboard backlight not working

[Subito Piano]

Hi all!

So I'm running FossaPup64 on a MacBook Air (MacBookAir5,1) and cannot get the keyboard backlight running. Running Lightum, I receive the following message:

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/sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness: No such file or directory

It turns out that there is no applesmc.768 subdirectory in /sys/devices/platform.

Note that I did install the applesmc-dkms_0.18.1-precise-mactel1_all.deb package, then the applesmc-dkms_0.17.0~rc1_all.deb package -- neither worked; also I installed the keyboard-backlight package; attempting to run that package indicates the same issue.

I DO have a directory /sys/devices/virtual/backlight/apple_backlight/power/, with several files (named actual_brightness, bl_power, brightness, max_brightness, scale, type, & uevent, plus a subdirectory "power" and a link folder "subsystem" containing links)

Hmm....maybe we ought to have a Puppy-on-a-Mac subforum....

Thoughts appreciated!

[n-at-han-k]

Apologies for bumping an old thread, but if I get stuck on this in the future, I'd like to end up here again and have the answer.

I'm running F96-CE_4 on a Macbook Air 2017 and have the same issue that

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smc::kb_backlight

is missing from

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/sys/class/leds

When researching this it seems that the drivers should already be in the kernel as there aren't any packages to install them.

I thought I would try my luck and run

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modprobe applesmc

to see if the drivers just weren't loaded.
Lo and behold! I now have

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/sys/class/leds/smc::kbd_backlight