idr_init(9) centos man page | unix.com

IDR_INIT(9)						  Basic Kernel Library Functions					       IDR_INIT(9)

NAME
       idr_init - initialize idr handle

SYNOPSIS
       void idr_init(struct idr * idp);

ARGUMENTS
       idp
	   idr handle

DESCRIPTION
       This function is use to set up the handle (idp) that you will pass to the rest of the functions.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							       IDR_INIT(9)