diff --git a/src/tusb.h b/src/tusb.h
new file mode 100644
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--- /dev/null
+++ b/src/tusb.h
@@ -0,0 +1,140 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#ifndef _TUSB_H_
+#define _TUSB_H_
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+#include "common/tusb_common.h"
+#include "osal/osal.h"
+#include "common/tusb_fifo.h"
+
+//------------- HOST -------------//
+#if TUSB_OPT_HOST_ENABLED
+  #include "host/usbh.h"
+
+  #if CFG_TUH_HID
+    #include "class/hid/hid_host.h"
+  #endif
+
+  #if CFG_TUH_MSC
+    #include "class/msc/msc_host.h"
+  #endif
+
+  #if CFG_TUH_CDC
+    #include "class/cdc/cdc_host.h"
+  #endif
+
+  #if CFG_TUH_VENDOR
+    #include "class/vendor/vendor_host.h"
+  #endif
+
+#endif
+
+//------------- DEVICE -------------//
+#if TUSB_OPT_DEVICE_ENABLED
+  #include "device/usbd.h"
+
+  #if CFG_TUD_HID
+    #include "class/hid/hid_device.h"
+  #endif
+
+  #if CFG_TUD_CDC
+    #include "class/cdc/cdc_device.h"
+  #endif
+
+  #if CFG_TUD_MSC
+    #include "class/msc/msc_device.h"
+  #endif
+
+  #if CFG_TUD_AUDIO
+    #include "class/audio/audio_device.h"
+  #endif
+
+  #if CFG_TUD_VIDEO
+    #include "class/video/video_device.h"
+  #endif
+
+  #if CFG_TUD_MIDI
+    #include "class/midi/midi_device.h"
+  #endif
+
+  #if CFG_TUD_VENDOR
+    #include "class/vendor/vendor_device.h"
+  #endif
+
+  #if CFG_TUD_USBTMC
+    #include "class/usbtmc/usbtmc_device.h"
+  #endif
+
+  #if CFG_TUD_DFU_RUNTIME
+    #include "class/dfu/dfu_rt_device.h"
+  #endif
+
+  #if CFG_TUD_DFU
+    #include "class/dfu/dfu_device.h"
+  #endif
+
+  #if CFG_TUD_ECM_RNDIS || CFG_TUD_NCM
+    #include "class/net/net_device.h"
+  #endif
+
+  #if CFG_TUD_BTH
+    #include "class/bth/bth_device.h"
+  #endif
+#endif
+
+
+//--------------------------------------------------------------------+
+// APPLICATION API
+//--------------------------------------------------------------------+
+/** \ingroup group_application_api
+ *  @{ */
+
+// Initialize device/host stack
+// Note: when using with RTOS, this should be called after scheduler/kernel is started.
+// Otherwise it could cause kernel issue since USB IRQ handler does use RTOS queue API.
+bool tusb_init(void);
+
+// Check if stack is initialized
+bool tusb_inited(void);
+
+// TODO
+// bool tusb_teardown(void);
+
+/** @} */
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif /* _TUSB_H_ */