HID: wiimote: Add debugfs support stubs

Add initializer and deinitializer for debugfs support. This will later allow raw
eeprom access and direct DRM modifications to debug wiimote behaviour and
further protocol reverse-engineerings.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 1f3e53a3a148..89b8851dbf1f 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -74,6 +74,7 @@ struct wiimote_data {
         struct input_dev *ir;
         struct power_supply battery;
         struct wiimote_ext *ext;
+        struct wiimote_debug *debug;
 
         spinlock_t qlock;
         __u8 head;
@@ -137,6 +138,18 @@ static inline void wiiext_handle(void *u, const __u8 *p) { }
 
 #endif
 
+#ifdef CONFIG_DEBUG_FS
+
+extern int wiidebug_init(struct wiimote_data *wdata);
+extern void wiidebug_deinit(struct wiimote_data *wdata);
+
+#else
+
+static inline int wiidebug_init(void *u) { return 0; }
+static inline void wiidebug_deinit(void *u) { }
+
+#endif
+
 /* requires the state.lock spinlock to be held */
 static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
                                                                 __u32 opt)