+ /**
+ * Read something in PCI config space. If the device does not exist
+ * -1 is returned, if the device does exist its PciDev::ReadConfig (or the
+ * virtual function that overrides) it is called.
+ * @param req Contains the address of the field to read.
+ * @param data Return the field read.
+ * @return The fault condition of the access.
+ */
+ virtual Fault * read(MemReqPtr &req, uint8_t *data);
+
+ /**
+ * Write to PCI config spcae. If the device does not exit the simulator
+ * panics. If it does it is passed on the PciDev::WriteConfig (or the virtual
+ * function that overrides it).
+ * @param req Contains the address to write to.
+ * @param data The data to write.
+ * @return The fault condition of the access.
+ */
+
+ virtual Fault * write(MemReqPtr &req, const uint8_t *data);
+
+ /**
+ * Start up function to check if more than one person is using an interrupt line
+ * and print a warning if such a case exists
+ */
+ virtual void startup();
+
+ /**
+ * Serialize this object to the given output stream.
+ * @param os The stream to serialize to.
+ */