Hi! > diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx > b/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx > new file mode 100644 > index 0000000..d8056d5 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-class-led-driver-sc27xx > @@ -0,0 +1,22 @@ > +What: /sys/class/leds/<led>/hw_pattern > +Date: September 2018 > +KernelVersion: 4.20 > +Description: > + Specify a hardware pattern for the SC27XX LED. For the SC27XX > + LED controller, it only supports 4 stages to make a single > + hardware pattern, which is used to configure the rise time, > + high time, fall time and low time for the breathing mode. > + > + For the breathing mode, the SC27XX LED only expects one > brightness > + for the high stage. To be compatible with the hardware pattern > + format, we should set brightness as 0 for rise stage, fall > + stage and low stage. > + > + Min stage duration: 125 ms > + Max stage duration: 31875 ms > + > + Since the stage duration step is 125 ms, the duration must be > + a multiplier of 125, like 125ms, 250ms, 375ms, 500ms ... > 31875ms. > + > + Thus the format of the hardware pattern values should be: > + "0 rise_duration brightness high_duration 0 fall_duration 0 > low_duration".
If I'm not mistaken, this is:
"0 rise_duration brightness high_duration brightness
fall_duration 0 low_duration".
Right?
With that fixed:
Acked-by: Pavel Machek <pavel@ucw.c>
And... thanks!
Pavel
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