PCI_COMMAND_SERR_ENABLE
mod_cmd = cmd & ~(PCI_COMMAND_PARITY_ENABLE|PCI_COMMAND_SERR_ENABLE);
cmd & ~PCI_COMMAND_SERR_ENABLE);
PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE;
PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE;
PCI_COMMAND_PARITY_ENABLE | PCI_COMMAND_SERR_ENABLE;