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:*/fn_lock 31Date: May 2018 32KernelVersion: 4.18 33Contact: "Oleg Keri <ezhi99@gmail.com>" 34Description: 35 Control fn-lock mode. 36 37 * 1 -> Switched On 38 * 0 -> Switched Off 39 40 For example:: 41 42 # echo "0" > \ 43 /sys/bus/pci/devices/0000:00:1f.0/PNP0C09:00/VPC2004:00/fn_lock 44 45What: /sys/bus/platform/devices/VPC2004:*/usb_charging 46Date: Feb 2021 47KernelVersion: 5.12 48Contact: platform-driver-x86@vger.kernel.org 49Description: 50 Controls whether the "always on USB charging" feature is 51 enabled or not. This feature enables charging USB devices 52 even if the computer is not turned on. 53