usb: hub: add check for unsupported bus topology

[linux-2.6-omap-h63xx.git] / drivers / usb / core / hcd.h

diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h
index 50b8bb2d1212b26f7e06a85a444b4125f307ab42..5b0b59b0d89b37709da23af08cf0271c193d9ebf 100644 (file)
--- a/drivers/usb/core/hcd.h
+++ b/drivers/usb/core/hcd.h
@@ -21,6 +21,8 @@
 
 #include <linux/rwsem.h>
 
+#define MAX_TOPO_LEVEL         6
+
 /* This file contains declarations of usbcore internals that are mostly
  * used or exposed by Host Controller Drivers.
  */