1 .. SPDX-License-Identifier: GPL-2.0
2
3 ===================================
4 Kernel driver for Spreadtrum SC27XX
5 ===================================
6
7 /sys/class/leds/<led>/hw_pattern
8 --------------------------------
9
10 Specify a hardware pattern for the SC27XX LED.
11 LED controller, it only supports 4 stages to m
12 hardware pattern, which is used to configure t
13 high time, fall time and low time for the brea
14
15 For the breathing mode, the SC27XX LED only ex
16 for the high stage. To be compatible with the
17 format, we should set brightness as 0 for rise
18 stage and low stage.
19
20 - Min stage duration: 125 ms
21 - Max stage duration: 31875 ms
22
23 Since the stage duration step is 125 ms, the d
24 a multiplier of 125, like 125ms, 250ms, 375ms,
25
26 Thus the format of the hardware pattern values
27 "0 rise_duration brightness high_duration 0 fa
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