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1* Generic system power control capability2 3Power-management integrated circuits or miscellaneous hardware components are4sometimes able to control the system power. The device driver associated with these5components might need to define this capability, which tells the kernel that6it can be used to switch off the system. The corresponding device must have the7standard property "system-power-controller" in its device node. This property8marks the device as able to control the system power. In order to test if this9property is found programmatically, use the helper function10"of_device_is_system_power_controller" from of.h .11 12Example:13 14act8846: act8846@5 {15 compatible = "active-semi,act8846";16 system-power-controller;17}18