insert_resource_conflict(9) [centos man page]

INSERT_RESOURCE_CONF(9) 					Hardware Interfaces					   INSERT_RESOURCE_CONF(9)

NAME

       insert_resource_conflict - Inserts resource in the resource tree

SYNOPSIS

       struct resource * insert_resource_conflict(struct resource * parent, struct resource * new);

ARGUMENTS

       parent
	   parent of the new resource

       new
	   new resource to insert

DESCRIPTION

       Returns 0 on success, conflict resource if the resource can't be inserted.

       This function is equivalent to request_resource_conflict when no conflict happens. If a conflict happens, and the conflicting resources
       entirely fit within the range of the new resource, then the new resource is inserted and the conflicting resources become children of the
       new resource.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   INSERT_RESOURCE_CONF(9)

BUS_ADJUST_RESOURCE(9)					   BSD Kernel Developer's Manual				    BUS_ADJUST_RESOURCE(9)

NAME

     bus_adjust_resource -- adjust resource allocated from a parent bus

SYNOPSIS

     #include <sys/param.h>
     #include <sys/bus.h>

     #include <machine/bus.h>
     #include <sys/rman.h>
     #include <machine/resource.h>

     int
     bus_adjust_resource(device_t dev, int type, struct resource *r, u_long start, u_long end);

DESCRIPTION

     This function is used to ask the parent bus to adjust the resource range assigned to an allocated resource.  The resource r should have been
     allocated by a previous call to bus_alloc_resource(9).  The new resource range must overlap the existing range of r.  The type argument
     should match the type argument passed to bus_alloc_resource(9) when the resource was initially allocated.

     Note that none of the constraints of the original allocation request such as alignment or boundary restrictions are checked by
     bus_adjust_resource().  It is the caller's responsibility to enforce any such requirements.

RETURN VALUES

     The bus_adjust_resource() method returns zero on success or an error code on failure.

EXAMPLES

     Grow an existing memory resource by 4096 bytes.

	     struct resource *res;
	     int error;

	     error = bus_adjust_resource(dev, SYS_RES_MEMORY, res,
		 rman_get_start(res), rman_get_end(res) + 0x1000);

ERRORS

     bus_adjust_resource() will fail if:

     [EINVAL]		The dev device does not have a parent device.

     [EINVAL]		The r resource is a shared resource.

     [EINVAL]		The new address range does not overlap with the existing address range of r.

     [EBUSY]		The new address range conflicts with another allocated resource.

SEE ALSO

     bus_alloc_resource(9), bus_release_resource(9), device(9), driver(9)

BSD
								  April 29, 2011							       BSD