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• PSM (Persistent Storage Manager) component is responsible for the storage of default/system configurations.
• Provides software interfaces and abstractions to read/write variables stored in persistent storage and read factory config variables.
• PSM holds mainly parameters related to hardware configuration.
• In dual processor architecture a process running in peer processor can access PSM DB over DBUS.
• All defaults/system configuration which are not modified during runtime are part of PSM.
• PSM should be up and running for normal configuration of RDKB unit.
• For WiFi initialization, PSM holds all default values of OEM specific custom parameters which is fetched through PSM HAL.

Architecture

   

Gliffy Diagram
macroId 9a4bd330-abce-4ca9-8f78-741e539eb5dd name Architectural view of PSM sub-system diagram pagePin 1

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