From 05e12ac18316d7dbb427c46c32c993fe23411c89 Mon Sep 17 00:00:00 2001
From: Ross Owen <ross@xmos.com>
Date: Thu, 21 Aug 2014 15:36:01 +0100
Subject: [PATCH] c_dig_rx only declared if required (saves chanends)

---
 module_usb_audio/main.xc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/module_usb_audio/main.xc b/module_usb_audio/main.xc
index 4e271583..abbe0873 100755
--- a/module_usb_audio/main.xc
+++ b/module_usb_audio/main.xc
@@ -364,7 +364,11 @@ chanend ?c_clk_int
     chan c_mix_out;
 #endif
 
+#if defined(SPDIF_RX) || defined(ADAT_RX)
     chan c_dig_rx;
+#else
+    #define c_dig_rx null
+#endif
 
     par
     {