vga_pci_alloc_resource
res = vga_pci_alloc_resource(dev, NULL, SYS_RES_MEMORY, &rid, 0,
res = vga_pci_alloc_resource(dev, NULL, SYS_RES_MEMORY, &rid, 0,
DEVMETHOD(bus_alloc_resource, vga_pci_alloc_resource),
static struct resource *vga_pci_alloc_resource(device_t dev, device_t child,