As per discussion backlight events are passed on as they are filtered by acpi-video.
Events of type 0x0012 have extended data in the rest of the buffer, this data is currently ignored. The Fn lock key currently is ignored. If userspace has a way to deal with this a function to pass on the extended data can be added. messages of type: firmware scancode 0xXX maps to unrecognized keycode 0xXXXX are from unknown keycodes in the DMI table and should be added to bios_to_linux_keycode to allow them to be processed. Y Paritcher (3): platform/x86: dell-wmi: add new backlight events platform/x86: dell-wmi: add new keymap type 0x0012 platform/x86: dell-wmi: add new dmi keys to bios_to_linux_keycode drivers/platform/x86/dell-wmi.c | 32 ++++++++++++++++++++++++++------ 1 file changed, 26 insertions(+), 6 deletions(-) -- 2.27.0