diff --git a/sys/dev/usb/input/atp.c b/sys/dev/usb/input/atp.c
--- a/sys/dev/usb/input/atp.c
+++ b/sys/dev/usb/input/atp.c
@@ -1635,7 +1635,8 @@
  * Return true if any movement is detected.
  */
 static boolean_t
-wsp_update_strokes(struct atp_softc *sc, wsp_finger_t *fingers, u_int n_fingers)
+wsp_update_strokes(struct atp_softc *sc, wsp_finger_t fingers[WSP_MAX_FINGERS],
+    u_int n_fingers)
 {
 	boolean_t movement = false;
 	atp_stroke_t *strokep_next;