pci_bus_alloc_resource — allocate a resource from a parent bus
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, void (*alignf)
(void *, struct resource *, resource_size_t, resource_size_t), void * alignf_data);
PCI bus
resource to allocate
size of resource to allocate
alignment of resource to allocate
minimum /proc/iomem address to allocate
IORESOURCE_* type flags
resource alignment function
data argument for resource alignment function
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.