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/leds/backlight/common.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/leds/backlight/common.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Common backlight properties
    8 
    9 maintainers:
   10   - Lee Jones <lee@kernel.org>
   11   - Daniel Thompson <daniel.thompson@linaro.org>
   12   - Jingoo Han <jingoohan1@gmail.com>
   13 
   14 description:
   15   Backlight devices provide backlight for different types of graphical
   16   displays. They are typically but not necessarily implemented using a white
   17   LED powered by a boost converter.
   18 
   19 properties:
   20   default-brightness:
   21     description:
   22       The default brightness that should be applied to the LED by the operating
   23       system on start-up. The brightness should not exceed the brightness the
   24       LED can provide.
   25     $ref: /schemas/types.yaml#/definitions/uint32
   26 
   27   max-brightness:
   28     description:
   29       Normally the maximum brightness is determined by the hardware and this
   30       property is not required. This property is used to put a software limit
   31       on the brightness apart from what the driver says, as it could happen
   32       that a LED can be made so bright that it gets damaged or causes damage
   33       due to restrictions in a specific system, such as mounting conditions.
   34     $ref: /schemas/types.yaml#/definitions/uint32
   35 
   36 additionalProperties: true

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