Specifications

84
Irq
IRQ for this entry.
Used
Status of this IRQ.
PCI_UNUSED 0x00 – This IRQ has not been assigned to PCI.
PCI_USED 0xFF – This IRQ has been assigned to PCI.
LEGACY_USED 0xFE – This IRQ has been used by an SIO legacy
device and cannot be used by PCI.
Status Codes Returned
EFI_SUCCESS Data was returned successfully.