diff --git a/include/linux/hid-debug.h b/include/linux/hid-debug.h
index 516e12c..ec08ac1 100644
--- a/include/linux/hid-debug.h
+++ b/include/linux/hid-debug.h
@@ -24,14 +24,27 @@
 
 #ifdef CONFIG_DEBUG_FS
 
-void hid_dump_input(struct hid_usage *, __s32);
+void hid_dump_input(struct hid_device *, struct hid_usage *, __s32);
 void hid_dump_device(struct hid_device *, struct seq_file *);
 void hid_dump_field(struct hid_field *, int, struct seq_file *);
-void hid_resolv_usage(unsigned, struct seq_file *);
+char *hid_resolv_usage(unsigned, struct seq_file *);
 void hid_debug_register(struct hid_device *, const char *);
 void hid_debug_unregister(struct hid_device *);
 void hid_debug_init(void);
 void hid_debug_exit(void);
+void hid_debug_event(struct hid_device *, char *);
+
+#define HID_DEBUG_BUFSIZE 512
+
+struct hid_debug_list {
+	char *hid_debug_buf;
+	int head;
+	int tail;
+	struct fasync_struct *fasync;
+	struct hid_device *hdev;
+	struct list_head node;
+	struct mutex read_mutex;
+};
 
 #else
 
@@ -44,6 +57,7 @@
 #define hid_debug_unregister(a)		do { } while (0)
 #define hid_debug_init()		do { } while (0)
 #define hid_debug_exit()		do { } while (0)
+#define hid_debug_event(a,b)		do { } while (0)
 
 #endif