Obtaining the Number of Devices

Obtains the number of devices. This API is defined in c_graph.h.

HIAI_StatusT HIAI_GetDeviceNum(uint32_t *devCount);

Parameter	Description	Value Range
devCount	Pointer to the number of output devices	-

For details about the returned error codes, see "Error Codes."

No.	Error Level	Error Code	Description
1	HIAI_INFO	HIAI_OK	The running is OK.
2	HIAI_ERROR	HIAI_GRAPH_GET_DEVNUM_ERROR	There is an error in obtaining the number of devices.

uint32_t dev_count;
HIAI_GetDeviceNum(&dev_count);

Parent topic: Data Receiving APIs (C++ Language)

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