Messages in this thread | | | Date | Wed, 22 Feb 2017 13:25:57 +0100 | From | Pavel Machek <> | Subject | Re: LED devices & poll() for brightness attribute |
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Hi!
> But this support is useful just for one single central userspace > application which will control all leds in system other application > which will change state by /sys/class/leds/ will de-synchronize that one > central application.
Yes. Does it matter for some real use case?
> So I think new ABI is not sufficient and I would propose to add poll() > support also for changes done by userspace, write() to attribute > /sys/class/leds/.../brightness.
Not easily possible, as we have triggers, and this was discussed in great great lengths before. Please go through that discussion. Pavel
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