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NVIDIA Jetson - Device Tree Overlay: Difference between revisions
NVIDIA Jetson - Device Tree Overlay (view source)
Revision as of 02:16, 17 February 2022
, 17 February 2022→Device tree overlay structure
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A device tree overlay for a hardware module must define the property: | A device tree overlay for a hardware module must define the property: | ||
* '''overlay-name''': which specifies a name for the hardware module. | * '''overlay-name''': which specifies a name for the hardware module. | ||
* '''jetson-header-name''': which specifies the expansion header with which the hardware module is associated; must specify one of the values described in the table [https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/hw_setup_jetson_io.html#wwpID0E03B0HA jetson-header-name property values]. | * '''jetson-header-name''': which specifies the expansion header with which the hardware module is associated; must specify one of the values described in the table [https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/hw_setup_jetson_io.html#wwpID0E03B0HA jetson-header-name property values]. | ||
* '''compatible''': which indicates which combination of Jetson module and carrier board the overlay supports; must specify one or more of the values described in the table [https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/hw_setup_jetson_io.html#wwpID0E03B0HA compatible property values]. | * '''compatible''': which indicates which combination of Jetson module and carrier board the overlay supports; must specify one or more of the values described in the table [https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/hw_setup_jetson_io.html#wwpID0E03B0HA compatible property values]. | ||
* '''fragment''': A DT overlay comprises a number of fragments, each of which indicates child nodes and the target. | |||
* '''target''': phandle target of the overlay. | |||
* '''target-path''': target path of the overlay. | |||
===Creating a Simple Device Tree Overlay=== | ===Creating a Simple Device Tree Overlay=== | ||