Quoting Daniel Mrzyglod (2019-03-11 13:23:09) > + error = pci_device_map_range(dev, > + dev->regions[mmio_bar].base_addr, > + mmio_size, > + PCI_DEV_MAP_FLAG_WRITABLE, > + &igt_mmio); This wasn't enough clue to consider intel_mmio.c instead? -Chris