diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 2287adf..3bd02f0 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -12,6 +12,8 @@
 				snd_pcm_format_t pcm_format,
 				unsigned int channels,
 				unsigned int period_bytes,
+				unsigned int period_frames,
+				unsigned int buffer_periods,
 				unsigned int rate,
 				struct audioformat *fmt,
 				struct snd_usb_endpoint *sync_ep);