Sorry for the lag... On Mon, Dec 24, 2012 at 12:55 PM, Roland Stigge <stigge@xxxxxxxxx> wrote: > On 24/12/12 09:41, Corentin Chary wrote: >> On Sun, Dec 23, 2012 at 6:21 PM, Roland Stigge <stigge@xxxxxxxxx> wrote: >>> After boot, /sys/devices/platform/samsung/leds/samsung::kbd_backlight/brightness >>> shows the maximum value (8) by readout, but the led is off. I need to manually >>> set it to the respective value to have keyboard backlight. >> >> If the led is set to 0, what's the value after reboot ? 0 or 8 ? > > Right - when writing 0 there before restart, the led value is actually 8 > after reboot, and the LED hardware is ON. This holds for both reboot and > halt+poweron cycle. Ok, > Maybe this is related to the "#define MAX_BRIGHT 0x07" (which is unused > in samsung-laptop.c)? A bit confusing in the code - but your question > hints for some other bug (to be solved differently). Tell me if I can > help somehow, here. I don't think this is really used. >> What's the behavior on windows ? > > There is no windows available on this machine. Too bad, let's assume your patch is the best behavior :). Will merge it soon. -- Corentin Chary http://xf.iksaif.net -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html