1 files changed, 20 insertions, 0 deletions

diff --git a/usb_extra.h b/usb_extra.h
new file mode 100644
index 000000000..499e6b2fb
--- /dev/null
+++ b/usb_extra.h
@@ -0,0 +1,20 @@
+#ifndef USB_EXTRA_H
+#define  USB_EXTRA_H 1
+
+#include <stdint.h>
+#include "usb.h"
+
+
+#define EXTRA_INTERFACE         3
+#define EXTRA_ENDPOINT          4
+#define EXTRA_SIZE              2
+#define EXTRA_BUFFER            EP_DOUBLE_BUFFER
+
+#define AUDIO_VOL_UP            (1<<0)
+#define AUDIO_VOL_DOWN          (1<<1)
+#define AUDIO_MUTE              (1<<2)
+
+
+int8_t usb_extra_send(uint8_t bits);
+
+#endif