From 481e50fdf78918e2640b2256c70402cdb4c59891 Mon Sep 17 00:00:00 2001
From: Ross Owen <ross@xmos.com>
Date: Wed, 22 Jan 2014 21:55:14 +0000
Subject: [PATCH] Extension units in descs now guarded by MAX_MIX_COUNT > 0

---
 module_usb_audio/endpoint0/audiorequests.xc | 2 +-
 module_usb_audio/endpoint0/descriptors.h    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/module_usb_audio/endpoint0/audiorequests.xc b/module_usb_audio/endpoint0/audiorequests.xc
index c5bd4003..0fa6124a 100644
--- a/module_usb_audio/endpoint0/audiorequests.xc
+++ b/module_usb_audio/endpoint0/audiorequests.xc
@@ -821,7 +821,7 @@ int AudioClassRequests_2(XUD_ep ep0_out, XUD_ep ep0_in, USB_SetupPacket_t &sp, c
 
                                 if (usbSpeed == XUD_SPEED_FS)
                                 {
-                                    maxFreq = MAX_FREQ_A1;
+                                    maxFreq = MAX_FREQ_FS;
                                 }
 #endif
 
diff --git a/module_usb_audio/endpoint0/descriptors.h b/module_usb_audio/endpoint0/descriptors.h
index 67969fc7..42efe9de 100644
--- a/module_usb_audio/endpoint0/descriptors.h
+++ b/module_usb_audio/endpoint0/descriptors.h
@@ -138,7 +138,7 @@ unsigned char devQualDesc_Null[] =
 };
 
 
-#if defined(MIXER) && !defined(AUDIO_PATH_XUS)
+#if defined(MIXER) && !defined(AUDIO_PATH_XUS) && (MAX_MIX_COUNT > 0)
 #warning Extention units on the audio path are required for mixer.  Enabling them now.
 #define AUDIO_PATH_XUS
 #endif