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DT Reference

DT

enum device_status_enumeration

device status

Values:

enumerator WM_DEV_ST_UNINIT

enumerator WM_DEV_ST_INITING

enumerator WM_DEV_ST_INITED

enumerator WM_DEV_ST_UNKNOWN

typedef enum device_status_enumeration wm_device_status_t

device status

typedef struct device_structure wm_device_t

device structure

Structure of the device entity

struct device_structure

device structure

Structure of the device entity

Public Members

char *name

device name

void *hw

hardware info, ref wm_dt_hw_xxx_t

void *ops

device operation interface

void *drv

driver context data

wm_device_status_t state

device state

void *priv

user private data

wm_device_t *wm_dt_get_device_by_name(const char *device_name)

Get the device.

Parameters:

device_name – [in] device name

Returns:

• NULL : failed

• others: succeed

int wm_dt_set_device_table_name(const char *default_name)

Set the device table name.

Warning

It must be invoked before any use of wm_dt_get_device_by_name, and will fail if invoked after wm_dt_get_device_by_name.

Parameters:

default_name – [in] device table name

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed

int wm_dt_free_device_by_name(const char *device_name)

Free the device.

Parameters:

device_name – [in] device name

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed

int wm_dt_free_device(wm_device_t *device)

Free the device.

Parameters:

device – [in] device pointer

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed

int wm_dt_free_all_device(void)

Free all devices.

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed

int wm_dt_dump_all_device(void)

dump in the default serial

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed

int wm_dt_auto_init_device(void)

auto init system device

Returns:

• WM_ERR_SUCCESS : succeed

• others : failed