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The Device Settings (DS) registers its services with the service manager. The Application uses/calls the DS Public API through service manager and DS Public API’s intern calls the under lying SoC level API’s to perform the required functionality.

Multi-App mode Support using IARM

Multi-app mode is used when multiple applications need to control the device settings simultaneously. Some SoC vendors implement the SoC level API to be multi-app capable, we still use Comcast’s IARM support to achieve multiple-app mode. This allows the Application level API to remain truly platform neutral.

The below diagram depicts that how multi-app designed in RDK.

Device Settings Programming Guide

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