pci_ctl
ma->ma_address[0], sizeof(struct pci_ctl));
sizeof(struct pci_ctl));
sizeof(struct pci_ctl));
offsetof(struct pci_ctl, pci_strbuf),
offsetof(struct pci_ctl, pci_strbuf),
offsetof(struct pci_ctl, reg))
offsetof(struct pci_ctl, reg), (v))