pci_read_config_word
pci_read_config_word(hw->pdev, PCIX_COMMAND_REGISTER, &pcix_cmd_word);
pci_read_config_word(hw->pdev, PCIX_STATUS_REGISTER_HI, &pcix_stat_hi_word);
pci_read_config_word(pdev, PCI_VENDOR_ID, &hw->vendor_id);
pci_read_config_word(pdev, PCI_DEVICE_ID, &hw->device_id);
pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &hw->subsystem_id);
pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
pci_read_config_word(dev, PCI_STATUS, &status);
pci_read_config_word(tp->pdev, PCI_SUBSYSTEM_VENDOR_ID, &tp->subsystem_vendor);
pci_read_config_word(tp->pdev, PCI_SUBSYSTEM_ID, &tp->subsystem_device);
pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
pci_read_config_word(tp->pdev, pm + PCI_PM_CTRL, &power_control);