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1What: /sys/bus/platform/devices/VPC2004:*/camera_power2Date: Dec 20103KernelVersion: 2.6.374Contact: "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_mode9Date: June 201210KernelVersion: 3.611Contact: "Maxim Mikityanskiy <maxtram95@gmail.com>"12Description:13 Change fan mode14 There are four available modes:15 16 * 0 -> Super Silent Mode17 * 1 -> Standard Mode18 * 2 -> Dust Cleaning19 * 4 -> Efficient Thermal Dissipation Mode20 21What: /sys/bus/platform/devices/VPC2004:*/touchpad22Date: May 201723KernelVersion: 4.1324Contact: "Ritesh Raj Sarraf <rrs@debian.org>"25Description:26 Control touchpad mode.27 * 1 -> Switched On28 * 0 -> Switched Off29 30What: /sys/bus/platform/devices/VPC2004:*/conservation_mode31Date: Aug 201732KernelVersion: 4.1433Contact: platform-driver-x86@vger.kernel.org34Description:35 Controls whether the conservation mode is enabled or not.36 This feature limits the maximum battery charge percentage to37 around 50-60% in order to prolong the lifetime of the battery.38 39What: /sys/bus/platform/devices/VPC2004:*/fn_lock40Date: May 201841KernelVersion: 4.1842Contact: "Oleg Keri <ezhi99@gmail.com>"43Description:44 Control fn-lock mode.45 46 * 1 -> Switched On47 * 0 -> Switched Off48 49 For example::50 51 # echo "0" > \52 /sys/bus/pci/devices/0000:00:1f.0/PNP0C09:00/VPC2004:00/fn_lock53 54What: /sys/bus/platform/devices/VPC2004:*/usb_charging55Date: Feb 202156KernelVersion: 5.1257Contact: platform-driver-x86@vger.kernel.org58Description:59 Controls whether the "always on USB charging" feature is60 enabled or not. This feature enables charging USB devices61 even if the computer is not turned on.62