mirror of
https://github.com/torvalds/linux
synced 2024-07-22 11:10:46 +00:00
cb3acb1564
Document the conservation_mode attributes provided by the ideapad-laptop module.
Fixes: ade5029618 ("platform/x86: ideapad-laptop: Expose conservation mode switch")
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-30-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
What: /sys/bus/platform/devices/VPC2004:*/camera_power
|
|
Date: Dec 2010
|
|
KernelVersion: 2.6.37
|
|
Contact: "Ike Panhc <ike.pan@canonical.com>"
|
|
Description:
|
|
Control the power of camera module. 1 means on, 0 means off.
|
|
|
|
What: /sys/bus/platform/devices/VPC2004:*/fan_mode
|
|
Date: June 2012
|
|
KernelVersion: 3.6
|
|
Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"
|
|
Description:
|
|
Change fan mode
|
|
There are four available modes:
|
|
|
|
* 0 -> Super Silent Mode
|
|
* 1 -> Standard Mode
|
|
* 2 -> Dust Cleaning
|
|
* 4 -> Efficient Thermal Dissipation Mode
|
|
|
|
What: /sys/bus/platform/devices/VPC2004:*/touchpad
|
|
Date: May 2017
|
|
KernelVersion: 4.13
|
|
Contact: "Ritesh Raj Sarraf <rrs@debian.org>"
|
|
Description:
|
|
Control touchpad mode.
|
|
* 1 -> Switched On
|
|
* 0 -> Switched Off
|
|
|
|
What: /sys/bus/platform/devices/VPC2004:*/conservation_mode
|
|
Date: Aug 2017
|
|
KernelVersion: 4.14
|
|
Contact: platform-driver-x86@vger.kernel.org
|
|
Description:
|
|
Controls whether the conservation mode is enabled or not.
|
|
This feature limits the maximum battery charge percentage to
|
|
around 50-60% in order to prolong the lifetime of the battery.
|
|
|
|
What: /sys/bus/platform/devices/VPC2004:*/fn_lock
|
|
Date: May 2018
|
|
KernelVersion: 4.18
|
|
Contact: "Oleg Keri <ezhi99@gmail.com>"
|
|
Description:
|
|
Control fn-lock mode.
|
|
|
|
* 1 -> Switched On
|
|
* 0 -> Switched Off
|
|
|
|
For example::
|
|
|
|
# echo "0" > \
|
|
/sys/bus/pci/devices/0000:00:1f.0/PNP0C09:00/VPC2004:00/fn_lock
|
|
|
|
What: /sys/bus/platform/devices/VPC2004:*/usb_charging
|
|
Date: Feb 2021
|
|
KernelVersion: 5.12
|
|
Contact: platform-driver-x86@vger.kernel.org
|
|
Description:
|
|
Controls whether the "always on USB charging" feature is
|
|
enabled or not. This feature enables charging USB devices
|
|
even if the computer is not turned on.
|