Chosen nodes

Macros
#define	DT_CHOSEN(prop)   DT_CAT(DT_CHOSEN_, prop)
	Get a node identifier for a /chosen node property.
#define	DT_HAS_CHOSEN(prop)   IS_ENABLED(DT_CAT3(DT_CHOSEN_, prop, _EXISTS))
	Test if the devicetree has a /chosen node.

Detailed Description

Macro Definition Documentation

DT_CHOSEN

#define DT_CHOSEN

(

prop

)

DT_CAT(DT_CHOSEN_, prop)

#include <zephyr/devicetree.h>

Get a node identifier for a /chosen node property.

This is only valid to call if DT_HAS_CHOSEN(prop) is 1.

Parameters

prop	lowercase-and-underscores property name for the /chosen node

Returns

a node identifier for the chosen node property

DT_HAS_CHOSEN

#define DT_HAS_CHOSEN

(

prop

)

IS_ENABLED(DT_CAT3(DT_CHOSEN_, prop, _EXISTS))

#include <zephyr/devicetree.h>

Test if the devicetree has a /chosen node.

Parameters

prop	lowercase-and-underscores devicetree property

Returns

1 if the chosen property exists and refers to a node, 0 otherwise