1What: /sys/class/leds/<led>/brightness 2Date: March 2020 3KernelVersion: 5.9 4Contact: Dan Murphy <dmurphy@ti.com> 5Description: read/write 6 Writing to this file will update all LEDs within the group to a 7 calculated percentage of what each color LED intensity is set 8 to. The percentage is calculated for each grouped LED via the 9 equation below: 10 11 led_brightness = brightness * multi_intensity/max_brightness 12 13 For additional details please refer to 14 Documentation/leds/leds-class-multicolor.rst. 15 16 The value of the LED is from 0 to 17 /sys/class/leds/<led>/max_brightness. 18 19What: /sys/class/leds/<led>/multi_index 20Date: March 2020 21KernelVersion: 5.9 22Contact: Dan Murphy <dmurphy@ti.com> 23Description: read 24 The multi_index array, when read, will output the LED colors 25 as an array of strings as they are indexed in the 26 multi_intensity file. 27 28What: /sys/class/leds/<led>/multi_intensity 29Date: March 2020 30KernelVersion: 5.9 31Contact: Dan Murphy <dmurphy@ti.com> 32Description: read/write 33 This file contains array of integers. Order of components is 34 described by the multi_index array. The maximum intensity should 35 not exceed /sys/class/leds/<led>/max_brightness. 36