harmony 鸿蒙USB Subsystem API Changelog
USB Subsystem API Changelog
cl.usb_manager.1 System API Change
Runtime authentication is performed for system APIs of the USB manager. An asynchronous API throws an error code via Promise.reject.
If your application is developed based on earlier versions, modify the return values of functions. Otherwise, the original service logic will be affected.
Key API/Component Changes
| Bundle Name | Original API | New API |
|---|---|---|
| ohos.usbV9.d.ts | function setCurrentFunctions(funcs: FunctionType): Promise |
function setCurrentFunctions(funcs: FunctionType): Promise |
| ohos.usbV9.d.ts | function setPortRoles(portId: number, powerRole: PowerRoleType, dataRole: DataRoleType): Promise |
function setPortRoles(portId: number, powerRole: PowerRoleType, dataRole: DataRoleType): Promise |
cl.usb_manager.2 SDK API Deletion
The @ohos.usbV9.d.ts file was deleted in OpenHarmony 4.0.5.5.
You need to import @ohos.usbManager to use USB service APIs.
import usbManager from '@ohos.usbManager';
Adaptation Guide
For details about usage of each API, see the API Reference.
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