diff --git a/src/include/device/device.h b/src/include/device/device.h
index 75e1189..be93f55 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -117,6 +117,8 @@
 device_t dev_find_device (unsigned int vendor, unsigned int device, device_t from);
 device_t dev_find_class (unsigned int class, device_t from);
 device_t dev_find_slot (unsigned int bus, unsigned int devfn);
+device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr);
+
 
 /* Rounding for boundaries. 
  * Due to some chip bugs, go ahead and roung IO to 16