diff --git a/include/linux/pci.h b/include/linux/pci.h
index de690ca..b32f70f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -98,6 +98,7 @@
 	unsigned int	class;		/* 3 bytes: (base,sub,prog-if) */
 	u8		hdr_type;	/* PCI header type (`multi' flag masked out) */
 	u8		rom_base_reg;	/* which config register controls the ROM */
+	u8		pin;  		/* which interrupt pin this device uses */
 
 	struct pci_driver *driver;	/* which driver has allocated this device */
 	u64		dma_mask;	/* Mask of the bits of bus address this