What: /sys/devices/platform/ideapad/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/devices/platform/ideapad/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