blob: aa503ee9b3bc8e0e636187c8ff669aeb8dba5832 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
.. SPDX-License-Identifier: GPL-2.0+
LG Gram laptop extra features
=============================
By Matan Ziv-Av <matan@svgalib.org>
Hotkeys
-------
The following FN keys are ignored by the kernel without this driver:
- FN-F1 (LG control panel) - Generates F15
- FN-F5 (Touchpad toggle) - Generates F13
- FN-F6 (Airplane mode) - Generates RFKILL
- FN-F8 (Keyboard backlight) - Generates F16.
This key also changes keyboard backlight mode.
- FN-F9 (Reader mode) - Generates F14
The rest of the FN keys work without a need for a special driver.
Reader mode
-----------
Writing 0/1 to /sys/devices/platform/lg-laptop/reader_mode disables/enables
reader mode. In this mode the screen colors change (blue color reduced),
and the reader mode indicator LED (on F9 key) turns on.
FN Lock
-------
Writing 0/1 to /sys/devices/platform/lg-laptop/fn_lock disables/enables
FN lock.
Battery care limit
------------------
Writing 80/100 to /sys/devices/platform/lg-laptop/battery_care_limit
sets the maximum capacity to charge the battery. Limiting the charge
reduces battery capacity loss over time.
This value is reset to 100 when the kernel boots.
Fan mode
--------
Writing 1/0 to /sys/devices/platform/lg-laptop/fan_mode disables/enables
the fan silent mode.
USB charge
----------
Writing 0/1 to /sys/devices/platform/lg-laptop/usb_charge disables/enables
charging another device from the USB port while the device is turned off.
This value is reset to 0 when the kernel boots.
LEDs
~~~~
The are two LED devices supported by the driver:
Keyboard backlight
------------------
A led device named kbd_led controls the keyboard backlight. There are three
lighting level: off (0), low (127) and high (255).
The keyboard backlight is also controlled by the key combination FN-F8
which cycles through those levels.
Touchpad indicator LED
----------------------
On the F5 key. Controlled by led device names tpad_led.
|
