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-rw-r--r--include/linux/usb.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5ca846eb1..227d6048e 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -555,12 +555,18 @@ struct usb_operations {
int (*unlink_urb) (struct urb* purb);
};
+#define DEVNUM_ROUND_ROBIN /***** OPTION *****/
+
/*
* Allocated per bus we have
*/
struct usb_bus {
int busnum; /* Bus number (in order of reg) */
+#ifdef DEVNUM_ROUND_ROBIN
+ int devnum_next; /* Next open device number in round-robin allocation */
+#endif /* DEVNUM_ROUND_ROBIN */
+
struct usb_devmap devmap; /* Device map */
struct usb_operations *op; /* Operations (specific to the HC) */
struct usb_device *root_hub; /* Root hub */