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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1What: /sys/bus/platform/devices/VPC2004:*/camera_power
2Date: Dec 2010
3KernelVersion: 2.6.37
4Contact: "Ike Panhc <ike.pan@canonical.com>"
5Description:
6 Control the power of camera module. 1 means on, 0 means off.
7
8What: /sys/bus/platform/devices/VPC2004:*/fan_mode
9Date: June 2012
10KernelVersion: 3.6
11Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"
12Description:
13 Change fan mode
14 There are four available modes:
15
16 * 0 -> Super Silent Mode
17 * 1 -> Standard Mode
18 * 2 -> Dust Cleaning
19 * 4 -> Efficient Thermal Dissipation Mode
20
21What: /sys/bus/platform/devices/VPC2004:*/touchpad
22Date: May 2017
23KernelVersion: 4.13
24Contact: "Ritesh Raj Sarraf <rrs@debian.org>"
25Description:
26 Control touchpad mode.
27 * 1 -> Switched On
28 * 0 -> Switched Off
29
30What: /sys/bus/platform/devices/VPC2004:*/conservation_mode
31Date: Aug 2017
32KernelVersion: 4.14
33Contact: platform-driver-x86@vger.kernel.org
34Description:
35 Controls whether the conservation mode is enabled or not.
36 This feature limits the maximum battery charge percentage to
37 around 50-60% in order to prolong the lifetime of the battery.
38
39What: /sys/bus/platform/devices/VPC2004:*/fn_lock
40Date: May 2018
41KernelVersion: 4.18
42Contact: "Oleg Keri <ezhi99@gmail.com>"
43Description:
44 Control fn-lock mode.
45
46 * 1 -> Switched On
47 * 0 -> Switched Off
48
49 For example::
50
51 # echo "0" > \
52 /sys/bus/pci/devices/0000:00:1f.0/PNP0C09:00/VPC2004:00/fn_lock
53
54What: /sys/bus/platform/devices/VPC2004:*/usb_charging
55Date: Feb 2021
56KernelVersion: 5.12
57Contact: platform-driver-x86@vger.kernel.org
58Description:
59 Controls whether the "always on USB charging" feature is
60 enabled or not. This feature enables charging USB devices
61 even if the computer is not turned on.