1.. SPDX-License-Identifier: GPL-2.0
2
3==================================
4Kernel driver for Crane EL15203000
5==================================
6
7/sys/class/leds/<led>/hw_pattern
8--------------------------------
9
10Specify a hardware pattern for the EL15203000 LED.
11
12The LEDs board supports only predefined patterns by firmware
13for specific LEDs.
14
15Breathing mode for Screen frame light tube::
16
17    "0 4000 1 4000"
18
19	^
20	|
21    Max-|     ---
22	|    /   \
23	|   /     \
24	|  /       \     /
25	| /         \   /
26    Min-|-           ---
27	|
28	0------4------8--> time (sec)
29
30Cascade mode for Pipe LED::
31
32    "1 800 2 800 4 800 8 800 16 800"
33
34	^
35	|
36  0 On -|----+                   +----+                   +---
37	|    |                   |    |                   |
38    Off-|    +-------------------+    +-------------------+
39	|
40  1 On -|    +----+                   +----+
41	|    |    |                   |    |
42    Off |----+    +-------------------+    +------------------
43	|
44  2 On -|         +----+                   +----+
45	|         |    |                   |    |
46    Off-|---------+    +-------------------+    +-------------
47	|
48  3 On -|              +----+                   +----+
49	|              |    |                   |    |
50    Off-|--------------+    +-------------------+    +--------
51	|
52  4 On -|                   +----+                   +----+
53	|                   |    |                   |    |
54    Off-|-------------------+    +-------------------+    +---
55	|
56	0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
57
58Inverted cascade mode for Pipe LED::
59
60    "30 800 29 800 27 800 23 800 15 800"
61
62	^
63	|
64  0 On -|    +-------------------+    +-------------------+
65	|    |                   |    |                   |
66    Off-|----+                   +----+                   +---
67	|
68  1 On -|----+    +-------------------+    +------------------
69	|    |    |                   |    |
70    Off |    +----+                   +----+
71	|
72  2 On -|---------+    +-------------------+    +-------------
73	|         |    |                   |    |
74    Off-|         +----+                   +----+
75	|
76  3 On -|--------------+    +-------------------+    +--------
77	|              |    |                   |    |
78    Off-|              +----+                   +----+
79	|
80  4 On -|-------------------+    +-------------------+    +---
81	|                   |    |                   |    |
82    Off-|                   +----+                   +----+
83	|
84	0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
85
86Bounce mode for Pipe LED::
87
88    "1 800 2 800 4 800 8 800 16 800 16 800 8 800 4 800 2 800 1 800"
89
90	^
91	|
92  0 On -|----+                                       +--------
93	|    |                                       |
94    Off-|    +---------------------------------------+
95	|
96  1 On -|    +----+                             +----+
97	|    |    |                             |    |
98    Off |----+    +-----------------------------+    +--------
99	|
100  2 On -|         +----+                   +----+
101	|         |    |                   |    |
102    Off-|---------+    +-------------------+    +-------------
103	|
104  3 On -|              +----+         +----+
105	|              |    |         |    |
106    Off-|--------------+    +---------+    +------------------
107	|
108  4 On -|                   +---------+
109	|                   |         |
110    Off-|-------------------+         +-----------------------
111	|
112	0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
113
114Inverted bounce mode for Pipe LED::
115
116    "30 800 29 800 27 800 23 800 15 800 15 800 23 800 27 800 29 800 30 800"
117
118	^
119	|
120  0 On -|    +---------------------------------------+
121	|    |                                       |
122    Off-|----+                                       +--------
123	|
124  1 On -|----+    +-----------------------------+    +--------
125	|    |    |                             |    |
126    Off |    +----+                             +----+
127	|
128  2 On -|---------+    +-------------------+    +-------------
129	|         |    |                   |    |
130    Off-|         +----+                   +----+
131	|
132  3 On -|--------------+    +---------+    +------------------
133	|              |    |         |    |
134    Off-|              +----+         +----+
135	|
136  4 On -|-------------------+         +-----------------------
137	|                   |         |
138    Off-|                   +---------+
139	|
140	0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
141