<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >pm_register</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="The Linux Kernel API" HREF="book1.html"><LINK REL="UP" TITLE="Power Management" HREF="c11281.html"><LINK REL="PREVIOUS" TITLE="Power Management" HREF="c11281.html"><LINK REL="NEXT" TITLE="pm_unregister" HREF="r11325.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The Linux Kernel API</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="c11281.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="r11325.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="AEN11283" ></A ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >pm_register</SPAN ></SPAN ></H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN11287" ></A ><H2 >Name</H2 >pm_register -- register a device with power management </DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN11290" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN11292" ></A ><P ></P ><P ><CODE ><CODE CLASS="FUNCDEF" >struct pm_dev * <TT CLASS="FUNCTION" >pm_register </TT ></CODE >(pm_dev_t <TT CLASS="PARAMETER" ><I >type</I ></TT >, unsigned long <TT CLASS="PARAMETER" ><I >id</I ></TT >, pm_callback <TT CLASS="PARAMETER" ><I >callback</I ></TT >);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN11302" ></A ><H2 >Arguments</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="PARAMETER" ><I >type</I ></TT ></DT ><DD ><P > device type </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >id</I ></TT ></DT ><DD ><P > device ID </P ></DD ><DT ><TT CLASS="PARAMETER" ><I >callback</I ></TT ></DT ><DD ><P > callback function </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN11320" ></A ><H2 >Description</H2 ><P > Add a device to the list of devices that wish to be notified about power management events. A &pm_dev structure is returned on success, on failure the return is <TT CLASS="CONSTANT" >NULL</TT >. </P ><P > The callback function will be called in process context and it may sleep. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="c11281.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="r11325.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Power Management</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="c11281.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><SPAN CLASS="phrase" ><SPAN CLASS="PHRASE" >pm_unregister</SPAN ></SPAN ></TD ></TR ></TABLE ></DIV ></BODY ></HTML >