On Fri, 2017-01-06 at 00:38 +0100, Jan Niggemann wrote: > Hello, > > I'm building a 4.8.15 kernel (which is working great) for my Thinkpad > T460s. What bothers me, is that I can't get the LEDs on the F1 and F4 > key working ((F1=mute, F4=mic on/off). I checked CONFIG_ directives > that seem relevant to me, but - well, I'm missing something. I have > enabled LED-related options as well as GPIO options. I don't think these are controlled by an LED class driver. > The relevant LEDs work fine using the backports 4.8 kernel > (4.8.0-0.bpo.2-amd64 #1 SMP Debian 4.8.11-1~bpo8+1 (2016-12-14) x86_64 > GNU/Linux). I have diffed both configs, but didn't spot the relevant > option. > > Which driver is needed for this, or which CONFIG_ directive? > I'd be grateful for a pointer in the right direction on this. Check CONFIG_THINKPAD_ACPI and related config symbols. Ben. -- Ben Hutchings The generation of random numbers is too important to be left to chance. - Robert Coveyou
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