diff --git a/examples/xua_lite_example/xua_lite/xua_buffer_lite.h b/examples/xua_lite_example/xua_lite/xua_buffer_lite.h
index 72e17396..8ac52765 100644
--- a/examples/xua_lite_example/xua_lite/xua_buffer_lite.h
+++ b/examples/xua_lite_example/xua_lite/xua_buffer_lite.h
@@ -24,6 +24,19 @@ unsafe void XUA_Buffer_lite(chanend c_ep0_out, chanend c_ep0_in, chanend c_aud_o
 [[combinable]]
 unsafe void XUA_Buffer_lite2(server ep0_control_if i_ep0_ctl, chanend c_aud_out, chanend ?c_feedback, chanend c_aud_in, chanend c_sof, in port p_for_mclk_count, streaming chanend c_audio_hub);
 
+/** Transfer samples to/from XUA. Should be called at the current USB rate.
+ * This function is non-blocking.
+ *
+ * \param[in,out] c_audio               Channel to XUA.
+ *
+ * \param[out] sampsFromUsbToAudio      Samples sent from host to device.
+ *
+ * \param[in] sampsFromAudioToUsb       Samples to send from device to host.
+ *
+ * \param[out] clock_nudge              Notification that the device is running
+ *                                      too slowly/quickly. Only used when in
+ *                                      adaptive endpoint mode.
+ */
 static inline void XUA_transfer_samples(streaming chanend c_audio,
                                         unsigned sampsFromUsbToAudio[],
                                         unsigned sampsFromAudioToUsb[],
diff --git a/lib_xua/src/core/endpoint0/xua_endpoint0.c b/lib_xua/src/core/endpoint0/xua_endpoint0.c
index 0304369e..11833693 100755
--- a/lib_xua/src/core/endpoint0/xua_endpoint0.c
+++ b/lib_xua/src/core/endpoint0/xua_endpoint0.c
@@ -1213,13 +1213,13 @@ void XUA_Endpoint0(chanend c_ep0_out, chanend c_ep0_in, chanend c_audioControl,
     chanend c_mix_ctl, chanend c_clk_ctl, chanend c_EANativeTransport_ctrl, CLIENT_INTERFACE(i_dfu, dfuInterface) VENDOR_REQUESTS_PARAMS_DEC_)
 {
     USB_SetupPacket_t sp;
-    XUA_Endpoint0_init(c_ep0_out, c_ep0_in, c_audioControl, c_mix_ctl, c_clk_ctl, c_EANativeTransport_ctrl, dfuInterface);
+    XUA_Endpoint0_init(c_ep0_out, c_ep0_in, c_audioControl, c_mix_ctl, c_clk_ctl, c_EANativeTransport_ctrl, dfuInterface VENDOR_REQUESTS_PARAMS_);
 
     while(1)
     {
         /* Returns XUD_RES_OKAY for success, XUD_RES_RST for bus reset */
         XUD_Result_t result = USB_GetSetupPacket(ep0_out, ep0_in, &sp);
-        XUA_Endpoint0_loop(result, sp, c_ep0_out, c_ep0_in, c_audioControl, c_mix_ctl, c_clk_ctl, c_EANativeTransport_ctrl, dfuInterface);
+        XUA_Endpoint0_loop(result, sp, c_ep0_out, c_ep0_in, c_audioControl, c_mix_ctl, c_clk_ctl, c_EANativeTransport_ctrl, dfuInterface VENDOR_REQUESTS_PARAMS_);
     }
 }
 #endif /* XUA_USB_EN*/
diff --git a/lib_xua/src/core/endpoint0/xua_ep0_wrapper.xc b/lib_xua/src/core/endpoint0/xua_ep0_wrapper.xc
index 14a5148b..306fc26a 100644
--- a/lib_xua/src/core/endpoint0/xua_ep0_wrapper.xc
+++ b/lib_xua/src/core/endpoint0/xua_ep0_wrapper.xc
@@ -16,7 +16,7 @@ void XUA_Endpoint0_select(chanend c_ep0_out, chanend c_ep0_in, client ep0_contro
 {
 
   USB_SetupPacket_t sp;
-  XUA_Endpoint0_lite_init(c_ep0_out, c_ep0_in, null, null, null, null, dfuInterface);
+  XUA_Endpoint0_lite_init(c_ep0_out, c_ep0_in, null, null, null, null, dfuInterface VENDOR_REQUESTS_PARAMS_);
   unsigned char sbuffer[120];
   XUD_SetReady_Out(ep0_out, sbuffer);
 
@@ -36,7 +36,8 @@ void XUA_Endpoint0_select(chanend c_ep0_out, chanend c_ep0_in, client ep0_contro
         }
         debug_printf("ep0, result: %d, length: %d\n", result, length); //-1 reset, 0 ok, 1 error
 
-        XUA_Endpoint0_lite_loop(result, sp, c_ep0_out, c_ep0_in, null, null, null, null, dfuInterface, &input_interface_num, &output_interface_num);
+        XUA_Endpoint0_lite_loop(result, sp, c_ep0_out, c_ep0_in, null, null, null, null, dfuInterface
+        VENDOR_REQUESTS_PARAMS_, &input_interface_num, &output_interface_num);
         i_ep0_ctl.set_output_interface(output_interface_num);
         i_ep0_ctl.set_input_interface(input_interface_num);
 
@@ -44,4 +45,4 @@ void XUA_Endpoint0_select(chanend c_ep0_out, chanend c_ep0_in, client ep0_contro
       break;
     }
   }
-}
\ No newline at end of file
+}