Documentation/leds/leds-el15203000.rst

   1 .. SPDX-License-Identifier: GPL-2.0
   2
   3 ==================================
   4 Kernel driver for Crane EL15203000
   5 ==================================
   6
   7 /sys/class/leds/<led>/hw_pattern
   8 --------------------------------
   9
  10 Specify a hardware pattern for the EL15203000 LED.
  11
  12 The LEDs board supports only predefined patterns by firmware
  13 for specific LEDs.
  14
  15 Breathing 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
  30 Cascade 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
  58 Inverted 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
  86 Bounce 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
 114 Inverted 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)