1.. SPDX-License-Identifier: GPL-2.0 2 3============================================ 4Kernel driver for STMicroelectronics LED1202 5============================================ 6 7/sys/class/leds/<led>/hw_pattern 8-------------------------------- 9 10Specify a hardware pattern for the ST1202 LED. The LED controller 11implements 12 low-side current generators with independent dimming 12control. Internal volatile memory allows the user to store up to 8 13different patterns. Each pattern is a particular output configuration 14in terms of PWM duty-cycle and duration (ms). 15 16To be compatible with the hardware pattern format, maximum 8 tuples of 17brightness (PWM) and duration must be written to hw_pattern. 18 19- Brightness range: 0-255 20- Min pattern duration: 22 ms 21- Max pattern duration: 5610 ms 22 23The format of the hardware pattern values should be: 24"brightness duration brightness duration ..." 25 26/sys/class/leds/<led>/repeat 27---------------------------- 28 29Specify a pattern repeat number, which is common for all channels. 30Default is 1. Writing 0 is invalid. Writing -1 or 255 repeats the 31pattern indefinitely. 32 33This file will always return the originally written repeat number. 34