centos man page for request_resource

REQUEST_RESOURCE(9)						Hardware Interfaces					       REQUEST_RESOURCE(9)

NAME
       request_resource - request and reserve an I/O or memory resource

SYNOPSIS
       int request_resource(struct resource * root, struct resource * new);

ARGUMENTS
       root
	   root resource descriptor

       new
	   resource descriptor desired by caller

DESCRIPTION
       Returns 0 for success, negative error code on error.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						       REQUEST_RESOURCE(9)