Hi Guido, You might want to check the pending patch set [0]. On 11/25/19 3:47 PM, Guido Günther wrote: > When using current LCD drivers as ledtrig backlight they're > not registered with the backlight device class. This has > two problems: they're usually not found by userspace since > these tools usually look in /sys/class/backlight and they > can't be used as backlight phandles in device tree for > e.g. LCD panels. > > This is an RFC if this is worthwhile at all? A current problem > is that changing the LED brightness does currently not notify > the class backlight so they can get out of sync but i could > look into that if the approach makes sense. > > > Guido Günther (1): > leds: backlight: register with class backlight too > > drivers/leds/trigger/ledtrig-backlight.c | 54 ++++++++++++++++++++++++ > 1 file changed, 54 insertions(+) > [0] https://lore.kernel.org/linux-leds/20191007124437.20367-1-jjhiblot@xxxxxx/ -- Best regards, Jacek Anaszewski
