Index: uspace/lib/drv/include/usbdiag_iface.h
===================================================================
--- uspace/lib/drv/include/usbdiag_iface.h	(revision e9d600c20d03e61842f0bffa983b376a8da9fff0)
+++ uspace/lib/drv/include/usbdiag_iface.h	(revision 2986763fc2e848fb51ae1d7364693132f11ad7ca)
@@ -49,4 +49,6 @@
 int usbdiag_stress_bulk_in(async_exch_t*, int, size_t);
 int usbdiag_stress_bulk_out(async_exch_t*, int, size_t);
+int usbdiag_stress_isoch_in(async_exch_t*, int, size_t);
+int usbdiag_stress_isoch_out(async_exch_t*, int, size_t);
 
 /** USB diagnostic device communication interface. */
@@ -56,4 +58,6 @@
 	int (*stress_bulk_in)(ddf_fun_t*, int, size_t);
 	int (*stress_bulk_out)(ddf_fun_t*, int, size_t);
+	int (*stress_isoch_in)(ddf_fun_t*, int, size_t);
+	int (*stress_isoch_out)(ddf_fun_t*, int, size_t);
 } usbdiag_iface_t;