--- /tmp/linux-5.4.0/sound/usb/pcm.c	2020-04-29 11:56:36.000000000 +0300
+++ linux-5.4.0/sound/usb/pcm.c	2020-04-29 12:01:31.916954625 +0300
@@ -355,6 +355,10 @@
 	case USB_ID(0x0582, 0x01d8): /* BOSS Katana */
 		/* BOSS Katana amplifiers do not need quirks */
 		return 0;
+	case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */
+		ep = 0x82;
+		ifnum = 0;
+		goto add_sync_ep_from_ifnum;
 	}
 
 	if (attr == USB_ENDPOINT_SYNC_ASYNC &&