1 What: /sys/class/leds/<led>/hw_pattern
5 Specify a hardware pattern for the SC27XX LED. For the SC27XX
6 LED controller, it only supports 4 stages to make a single
7 hardware pattern, which is used to configure the rise time,
8 high time, fall time and low time for the breathing mode.
10 For the breathing mode, the SC27XX LED only expects one brightness
11 for the high stage. To be compatible with the hardware pattern
12 format, we should set brightness as 0 for rise stage, fall
15 Min stage duration: 125 ms
16 Max stage duration: 31875 ms
18 Since the stage duration step is 125 ms, the duration should be
19 a multiplier of 125, like 125ms, 250ms, 375ms, 500ms ... 31875ms.
21 Thus the format of the hardware pattern values should be:
22 "0 rise_duration brightness high_duration 0 fall_duration 0 low_duration".