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1# hid_ddk_api.h
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3
4## 概述
5
6声明主机侧访问输入设备的HID DDK接口。
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8**引用文件：**<hid/hid_ddk_api.h>
9
10**起始版本：** 11
11
12**相关模块：**[HID DDk](_hid_ddk.md)
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14
15## 汇总
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17
18### 函数
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20| 名称 | 描述 |
21| -------- | -------- |
22| int32_t [OH_Hid_CreateDevice](_hid_ddk.md#oh_hid_createdevice) ([Hid_Device](_hid___device.md) \*hidDevice, [Hid_EventProperties](_hid___event_properties.md) \*hidEventProperties) | 创建设备。  |
23| int32_t [OH_Hid_EmitEvent](_hid_ddk.md#oh_hid_emitevent) (int32_t deviceId, const [Hid_EmitItem](_hid___emit_item.md) items[], uint16_t length) | 向指定设备发送事件列表。  |
24| int32_t [OH_Hid_DestroyDevice](_hid_ddk.md#oh_hid_destroydevice) (int32_t deviceId) | 销毁设备。  |
25| int32_t [OH_Hid_Init](_hid_ddk.md#oh_hid_init) (void) | 初始化HID DDK。  |
26| int32_t [OH_Hid_Release](_hid_ddk.md#oh_hid_release) (void) | 释放HID DDK。  |
27| int32_t [OH_Hid_Open](_hid_ddk.md#oh_hid_open) (uint64_t deviceId, uint8_t interfaceIndex, [Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*\*dev) | 打开deviceId和interfaceIndex指定的设备。  |
28| int32_t [OH_Hid_Close](_hid_ddk.md#oh_hid_close) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*\*dev) | 关闭设备。  |
29| int32_t [OH_Hid_Write](_hid_ddk.md#oh_hid_write) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, uint8_t \*data, uint32_t length, uint32_t \*bytesWritten) | 向设备写入报告。  |
30| int32_t [OH_Hid_ReadTimeout](_hid_ddk.md#oh_hid_readtimeout) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, uint8_t \*data, uint32_t bufSize, int timeout, uint32_t \*bytesRead) | 在指定的超时时间内从设备读取报告。  |
31| int32_t [OH_Hid_Read](_hid_ddk.md#oh_hid_read) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, uint8_t \*data, uint32_t bufSize, uint32_t \*bytesRead) | 从设备读取报告，默认为阻塞模式（阻塞等待直到有数据可读取），可以调用[OH_Hid_SetNonBlocking](_hid_ddk.md#oh_hid_setnonblocking)改变模式。  |
32| int32_t [OH_Hid_SetNonBlocking](_hid_ddk.md#oh_hid_setnonblocking) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, int nonBlock) | 设置设备读取模式为非阻塞。  |
33| int32_t [OH_Hid_GetRawInfo](_hid_ddk.md#oh_hid_getrawinfo) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, [Hid_RawDevInfo](_hid___raw_dev_info.md) \*rawDevInfo) | 获取设备原始信息。  |
34| int32_t [OH_Hid_GetRawName](_hid_ddk.md#oh_hid_getrawname) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, char \*data, uint32_t bufSize) | 获取设备原始名称。  |
35| int32_t [OH_Hid_GetPhysicalAddress](_hid_ddk.md#oh_hid_getphysicaladdress) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, char \*data, uint32_t bufSize) | 获取设备物理地址。  |
36| int32_t [OH_Hid_GetRawUniqueId](_hid_ddk.md#oh_hid_getrawuniqueid) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, uint8_t \*data, uint32_t bufSize) | 获取设备原始唯一标识符。  |
37|<!--DelRow--> int32_t [OH_Hid_SendReport](_hid_ddk.md#oh_hid_sendreport) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, [Hid_ReportType](_hid_ddk.md#hid_reporttype) reportType, const uint8_t \*data, uint32_t length) | 向设备发送报告。  |
38|<!--DelRow--> int32_t [OH_Hid_GetReport](_hid_ddk.md#oh_hid_getreport) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, [Hid_ReportType](_hid_ddk.md#hid_reporttype) reportType, uint8_t \*data, uint32_t bufSize) | 获取设备报告。  |
39| int32_t [OH_Hid_GetReportDescriptor](_hid_ddk.md#oh_hid_getreportdescriptor) ([Hid_DeviceHandle](_hid_ddk.md#hid_devicehandle) \*dev, uint8_t \*buf, uint32_t bufSize, uint32_t \*bytesRead) | 获取设备报告描述符。  |
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