PCI_msi_control
WriteConfig(device, offset + PCI_msi_control, 2, info->control_value);
WriteConfig(device, info->capability_offset + PCI_msi_control, 2,
WriteConfig(device, info->capability_offset + PCI_msi_control, 2,
ReadConfig(device, info->capability_offset + PCI_msi_control, 2));
WriteConfig(device, info->capability_offset + PCI_msi_control, 2,
info->capability_offset + PCI_msi_control, 2);