# DeviceManager ## Overview Distributed device management module, which provides APIs to obtain information about trusted devices and local devices. **Since**: 20 ## File Summary | Name| Description| | -- | -- | | [oh_device_manager.h](capi-oh-device-manager-h.md) | Provides APIs to obtain information about trusted devices and local devices. File to include: | | [oh_device_manager_err_code.h](capi-oh-device-manager-err-code-h.md) | Declares the error codes of the distributed device management module. File to include: |