device_state Struct Reference

Runtime device dynamic structure (in RAM) per driver instance. More...

#include <device.h>

Data Fields
uint8_t	init_res
	Device initialization return code (positive errno value).
bool	initialized: 1
	Indicates the device initialization function has been invoked.

Detailed Description

Runtime device dynamic structure (in RAM) per driver instance.

Fields in this are expected to be default-initialized to zero. The kernel driver infrastructure and driver access functions are responsible for ensuring that any non-zero initialization is done before they are accessed.

Field Documentation

init_res

uint8_t device_state::init_res

Device initialization return code (positive errno value).

Device initialization functions return a negative errno code if they fail. In Zephyr, errno values do not exceed 255, so we can store the positive result value in a uint8_t type.

initialized

bool device_state::initialized

Indicates the device initialization function has been invoked.

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The documentation for this struct was generated from the following file:

• zephyr/device.h