1 What: /sys/class/leds/<led>/device/b 1 What: /sys/class/leds/<led>/device/brightness
2 Date: July 2020 2 Date: July 2020
3 KernelVersion: 5.9 3 KernelVersion: 5.9
4 Contact: Marek Behún <kabel@kernel.org> 4 Contact: Marek Behún <kabel@kernel.org>
5 Description: (RW) On the front panel of the 5 Description: (RW) On the front panel of the Turris Omnia router there is also
6 a button which can be used to 6 a button which can be used to control the intensity of all the
7 LEDs at once, so that if they 7 LEDs at once, so that if they are too bright, user can dim them.
8 8
9 The microcontroller cycles bet 9 The microcontroller cycles between 8 levels of this global
10 brightness (from 100% to 0%), 10 brightness (from 100% to 0%), but this setting can have any
11 integer value between 0 and 10 11 integer value between 0 and 100. It is therefore convenient to be
12 able to change this setting fr 12 able to change this setting from software.
13 13
14 Format: %i 14 Format: %i
15 15
16 What: /sys/class/leds/<led>/device/g 16 What: /sys/class/leds/<led>/device/gamma_correction
17 Date: August 2023 17 Date: August 2023
18 KernelVersion: 6.6 18 KernelVersion: 6.6
19 Contact: Marek Behún <kabel@kernel.org> 19 Contact: Marek Behún <kabel@kernel.org>
20 Description: (RW) Newer versions of the mic 20 Description: (RW) Newer versions of the microcontroller firmware of the
21 Turris Omnia router support ga 21 Turris Omnia router support gamma correction for the RGB LEDs.
22 This feature can be enabled/di 22 This feature can be enabled/disabled by writing to this file.
23 23
24 If the feature is not supporte 24 If the feature is not supported because the MCU firmware is too
25 old, the file always reads as 25 old, the file always reads as 0, and writing to the file results
26 in the EOPNOTSUPP error. 26 in the EOPNOTSUPP error.
27 27
28 Format: %i 28 Format: %i
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