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-rw-r--r--Demos/Device/ClassDriver/AudioInput/AudioInput.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.c b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
index 9aa866755..382446a80 100644
--- a/Demos/Device/ClassDriver/AudioInput/AudioInput.c
+++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
@@ -44,6 +44,7 @@ USB_ClassInfo_Audio_Device_t Microphone_Audio_Interface =
{
.Config =
{
+ .ControlInterfaceNumber = 0,
.StreamingInterfaceNumber = 1,
.DataINEndpointNumber = AUDIO_STREAM_EPNUM,