xref: /linux/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia (revision 45c2818f78d31d7f6732ad07baa7902f33c269d3)
1*45c2818fSMarek BehúnWhat:		/sys/class/leds/<led>/device/brightness
2*45c2818fSMarek BehúnDate:		July 2020
3*45c2818fSMarek BehúnKernelVersion:	5.9
4*45c2818fSMarek BehúnContact:	Marek Behún <marek.behun@nic.cz>
5*45c2818fSMarek BehúnDescription:	(RW) On the front panel of the Turris Omnia router there is also
6*45c2818fSMarek Behún		a button which can be used to control the intensity of all the
7*45c2818fSMarek Behún		LEDs at once, so that if they are too bright, user can dim them.
8*45c2818fSMarek Behún
9*45c2818fSMarek Behún		The microcontroller cycles between 8 levels of this global
10*45c2818fSMarek Behún		brightness (from 100% to 0%), but this setting can have any
11*45c2818fSMarek Behún		integer value between 0 and 100. It is therefore convenient to be
12*45c2818fSMarek Behún		able to change this setting from software.
13*45c2818fSMarek Behún
14*45c2818fSMarek Behún		Format: %i
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