diff --git a/lib/pci.h b/lib/pci.h
index 1462aa2..fc0940a 100644
--- a/lib/pci.h
+++ b/lib/pci.h
@@ -15,6 +15,7 @@
 	PCIDEVADDR_INVALID = 0xffff,
 };
 
+extern void pci_print(void);
 extern bool pci_dev_exists(pcidevaddr_t dev);
 extern pcidevaddr_t pci_find_dev(uint16_t vendor_id, uint16_t device_id);
 
@@ -57,4 +58,6 @@
 	uint8_t  name[];
 };
 
+#define  PCI_HEADER_TYPE_MASK		0x7f
+
 #endif /* PCI_H */