The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/power/power-controller.txt

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    1 * Generic system power control capability
    2 
    3 Power-management integrated circuits or miscellaneous hardware components are
    4 sometimes able to control the system power. The device driver associated with these
    5 components might need to define this capability, which tells the kernel that
    6 it can be used to switch off the system. The corresponding device must have the
    7 standard property "system-power-controller" in its device node. This property
    8 marks the device as able to control the system power. In order to test if this
    9 property is found programmatically, use the helper function
   10 "of_device_is_system_power_controller" from of.h .
   11 
   12 Example:
   13 
   14 act8846: act8846@5 {
   15          compatible = "active-semi,act8846";
   16          system-power-controller;
   17 }

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