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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-3773A78D-F491-52EB-AA1D-201636497F28" xml:lang="en"><title>Power Management
Tutorials</title><shortdesc>This topic describes how to implement a power controller in a base
port.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>A power controller is a kernel extension that manages the power management
hardware of a phone, for example on-chip power management controllers and
oscillators. </p>
</conbody><related-links>
<link href="GUID-0C435514-EEC6-5660-BB5F-535790349632.dita"><linktext>Power Management</linktext>
</link>
<link href="GUID-113B3755-1797-5D1B-8E07-8A18F5FE1504.dita"><linktext>Power States</linktext>
</link>
</related-links></concept>