#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
-#define PCI_CAP_ID_HT 0x08
+#define PCI_CAP_ID_PCIX 0x07 /* PCIX */
+#define PCI_CAP_ID_HT 0x08 /* Hypertransport */
+#define PCI_CAP_ID_PCIE 0x10 /* PCI Express */
#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */