hdf_device_desc-h.md

HdfDeviceObject

Defines the device object.

HdfDeviceIoClient

Defines the client object structure of the I/O service.

IDeviceIoService

Defines the driver service.

SubscriberCallback

Called when the driver subscribes to other driver services.

IPowerEventListener

Defines the power management functions provided by the HDF for the driver.

HdfDriverEntry

Defines the entry structure of the driver in the HDF.

MAX_PRIORITY_NUM   200

The maximum priority for loading the host and device.

HDF_INIT(module)   HDF_DRIVER_INIT(module)

Registers the driver with the HDF.

ServicePolicy {   SERVICE_POLICY_NONE = 0, SERVICE_POLICY_PUBLIC, SERVICE_POLICY_CAPACITY, SERVICE_POLICY_FRIENDLY,   SERVICE_POLICY_PRIVATE, SERVICE_POLICY_INVALID }

Enumerates policies for releasing driver services developed based on the HDF.

DevicePreload { DEVICE_PRELOAD_ENABLE = 0, DEVICE_PRELOAD_DISABLE, DEVICE_PRELOAD_INVALID }

Enumerates driver loading policies.

DevSvcManagerClntGetService (const char *svcName)

const struct HdfObject * 

Obtains the driver service object based on a driver service name.

HdfDeviceGetServiceName (const struct HdfDeviceObject *deviceObject)

const char * 

Obtains the service name of a driver.

HdfDeviceSubscribeService (struct HdfDeviceObject *deviceObject, const char *serviceName, struct SubscriberCallback callback)

int32_t 

Subscribes to a driver service.

HdfDeviceSendEvent (const struct HdfDeviceObject *deviceObject, uint32_t id, const struct HdfSBuf *data)

int32_t 

Sends event messages.

HdfDeviceSendEventToClient (const struct HdfDeviceIoClient *client, uint32_t id, const struct HdfSBuf *data)

int32_t 

Sends an event message to a specified client object.