2 files changed, 22 insertions, 2 deletions
diff --git a/tinyusb/class/hid.h b/tinyusb/class/hid.h
index c526ab2b4..cf70f66aa 100644
--- a/tinyusb/class/hid.h
+++ b/tinyusb/class/hid.h
@@ -46,12 +46,12 @@
 #ifndef _TUSB_HID_H_
 #define _TUSB_HID_H_
 
+#include "common/common.h"
+
 #ifdef __cplusplus
  extern "C" {
 #endif
 
-#include "common/common.h"
-
 enum {
   HID_SUBCLASS_NONE = 0,
   HID_SUBCLASS_BOOT = 1
diff --git a/tinyusb/class/msc.h b/tinyusb/class/msc.h
index ad9f46c4b..53e2e93df 100644
--- a/tinyusb/class/msc.h
+++ b/tinyusb/class/msc.h
@@ -53,6 +53,26 @@
 #endif
 
 //--------------------------------------------------------------------+
+// USB Class Constant
+//--------------------------------------------------------------------+
+enum {
+  MSC_SUBCLASS_RBC = 1 ,
+  MSC_SUBCLASS_SFF_MMC ,
+  MSC_SUBCLASS_QIC     ,
+  MSC_SUBCLASS_UFI     ,
+  MSC_SUBCLASS_SFF     ,
+  MSC_SUBCLASS_SCSI
+};
+
+// CBI only approved to use with full-speed floopy disk & should not used with highspeed or device other than floopy
+enum {
+  MSC_PROTOCOL_CBI              = 0,
+  MSC_PROTOCOL_CBI_NO_INTERRUPT = 1,
+  MSC_PROTOCOL_BOT              = 0x50
+};
+
+
+//--------------------------------------------------------------------+
 // SCSI Primary Command (SPC-4)
 //--------------------------------------------------------------------+
 typedef ATTR_PACKED_STRUCT(struct)