Enablers: Resources: Power Management
Functional Description

Features

• Change Power Managment Settings
• Management System

Change Power Managment Settings

The user can alter, within reasonable limits, settings that affect Power Managment for a device.

The user is able to select which mode the alteration(s) are for (on battery or on mains power) and can alter settings such as: brightness of screen, timeouts for dimming and turning off the screen, and timeout for device suspension.

Management System

Power Management consists of a set of tools to facilitate changing Qt Extended's power management for individual devices. It supports the following use cases:

• Battery mode - The device is running on an internal battery.
• Wall charger mode - The device is connected to an external power source.
• Secondary batteries - The device has any number of secondary power source.

The default power sources implementations support APM based battery information and AT modem based information ( AT+CBC) but can be extended to suit any type of power source.

The power management system uses a leveled approach. The default phone implementation supports three levels (display dimmed, backlight off, suspended). However it is possible to have any arbitrary number of levels.