.. SPDX-License-Identifier: GPL-2.0

================================== Kernel driver for Crane EL15203000

/sys/class/leds/<led>/hw_pattern

Specify a hardware pattern for the EL15203000 LED.

The LEDs board supports only predefined patterns by firmware for specific LEDs.

Breathing mode for Screen frame light tube::

"0 4000 1 4000"

^
|
Max-|     ---
|    /   \
|   /     \
|  /       \     /
| /         \   /
Min-|-           ---
|
0------4------8--> time (sec)

Cascade mode for Pipe LED::

"1 800 2 800 4 800 8 800 16 800"

^
|

0 On -|----+ +----+ +--- | | | | | Off-| +-------------------+ +-------------------+ | 1 On -| +----+ +----+ | | | | | Off |----+ +-------------------+ +------------------ | 2 On -| +----+ +----+ | | | | | Off-|---------+ +-------------------+ +------------- | 3 On -| +----+ +----+ | | | | | Off-|--------------+ +-------------------+ +-------- | 4 On -| +----+ +----+ | | | | | Off-|-------------------+ +-------------------+ +--- | 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)

Inverted cascade mode for Pipe LED::

"30 800 29 800 27 800 23 800 15 800"

^
|

0 On -| +-------------------+ +-------------------+ | | | | | Off-|----+ +----+ +--- | 1 On -|----+ +-------------------+ +------------------ | | | | | Off | +----+ +----+ | 2 On -|---------+ +-------------------+ +------------- | | | | | Off-| +----+ +----+ | 3 On -|--------------+ +-------------------+ +-------- | | | | | Off-| +----+ +----+ | 4 On -|-------------------+ +-------------------+ +--- | | | | | Off-| +----+ +----+ | 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)

Bounce mode for Pipe LED::

"1 800 2 800 4 800 8 800 16 800 16 800 8 800 4 800 2 800 1 800"

^
|

0 On -|----+ +-------- | | | Off-| +---------------------------------------+ | 1 On -| +----+ +----+ | | | | | Off |----+ +-----------------------------+ +-------- | 2 On -| +----+ +----+ | | | | | Off-|---------+ +-------------------+ +------------- | 3 On -| +----+ +----+ | | | | | Off-|--------------+ +---------+ +------------------ | 4 On -| +---------+ | | | Off-|-------------------+ +----------------------- | 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)

Inverted bounce mode for Pipe LED::

"30 800 29 800 27 800 23 800 15 800 15 800 23 800 27 800 29 800 30 800"

^
|

0 On -| +---------------------------------------+ | | | Off-|----+ +-------- | 1 On -|----+ +-----------------------------+ +-------- | | | | | Off | +----+ +----+ | 2 On -|---------+ +-------------------+ +------------- | | | | | Off-| +----+ +----+ | 3 On -|--------------+ +---------+ +------------------ | | | | | Off-| +----+ +----+ | 4 On -|-------------------+ +----------------------- | | | Off-| +---------+ | 0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)