# 已停止维护的接口

* [系统公共事件定义 (已废弃)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/commonevent-definitions)  
* [@ohos.commonEvent (公共事件模块)(已废弃)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-commonevent)  
* [@ohos.usb (USB管理)(已停止维护)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-usb-deprecated)  
* [@system.brightness (屏幕亮度)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-system-brightness)  
* [@system.battery (电量信息)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-system-battery)  
* [@system.device (设备信息)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-system-device)  
* [@system.request (上传下载)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-system-request)  
* [@ohos.screenLock (锁屏管理)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-screen-lock)  
* [@ohos.systemTime (系统时间、时区)](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-system-time)