centos man page for pci_bus_alloc_resource

PCI_BUS_ALLOC_RESOUR(9) 					Hardware Interfaces					   PCI_BUS_ALLOC_RESOUR(9)

NAME
       pci_bus_alloc_resource - allocate a resource from a parent bus

SYNOPSIS
       int pci_bus_alloc_resource(struct pci_bus * bus, struct resource * res, resource_size_t size, resource_size_t align, resource_size_t min,
				  unsigned int type_mask,
				  resource_size_t (*alignf) (void *, const struct resource *, resource_size_t, resource_size_t),
				  void * alignf_data);

ARGUMENTS
       bus
	   PCI bus

       res
	   resource to allocate

       size
	   size of resource to allocate

       align
	   alignment of resource to allocate

       min
	   minimum /proc/iomem address to allocate

       type_mask
	   IORESOURCE_* type flags

       alignf
	   resource alignment function

       alignf_data
	   data argument for resource alignment function

DESCRIPTION
       Given the PCI bus a device resides on, the size, minimum address, alignment and type, try to find an acceptable resource allocation for a
       specific device resource.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   PCI_BUS_ALLOC_RESOUR(9)