um_pci_device_reg
struct um_pci_device_reg *dev;
struct um_pci_device_reg *reg = &um_pci_devices[pdev->devfn / 8];
static struct um_pci_device_reg um_pci_devices[MAX_DEVICES];
struct um_pci_device_reg *reg = priv;
struct um_pci_device_reg *reg = &um_pci_devices[pdev->devfn / 8];
struct um_pci_device_reg *reg = priv;