LPC_IO_CONTROL_REG_1
val8 = pci_getb(bus, dev, fn, LPC_IO_CONTROL_REG_1);
pci_putb(bus, dev, fn, LPC_IO_CONTROL_REG_1, val8);
val8 = pci_getb(bus, dev, fn, LPC_IO_CONTROL_REG_1);
pci_putb(bus, dev, fn, LPC_IO_CONTROL_REG_1, val8);