On Thu, Feb 9, 2017, at 13:44, Hans de Goede wrote: > Make thinkpad_acpi call led_classdev_notify_brightness_hw_changed on the > kbd_led led_classdev registered by thinkpad_acpi when the kbd backlight > brightness is changed through the hotkey. > > This will allow userspace to monitor (poll) for brightness changes on > these LEDs caused by the hotkey. It will *often* do so, you assume the thinkpad firmware is far more well behaved than it really is :-( It is model/bios-revision specific. Fortunately, it should works on most models, and there really isn't a better way of doing this (other than adding the event to the NVRAM poll set of some very old models, which is also not worth doing unless you can actually test it). > Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> Acked-by: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> -- Henrique Holschuh
