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-rw-r--r--hw/usb-desc.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/usb-desc.h b/hw/usb-desc.h
index 5c14e4abdc..d6e07ea5d2 100644
--- a/hw/usb-desc.h
+++ b/hw/usb-desc.h
@@ -71,6 +71,11 @@ struct USBDescEndpoint {
     uint8_t                   bmAttributes;
     uint16_t                  wMaxPacketSize;
     uint8_t                   bInterval;
+    uint8_t                   bRefresh;
+    uint8_t                   bSynchAddress;
+
+    uint8_t                   is_audio; /* has bRefresh + bSynchAddress */
+    uint8_t                   *extra;
 };
 
 struct USBDescOther {