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+/** \addtogroup group_configuration
+ *  @{ */
+
+//--------------------------------------------------------------------+
+// COMMON CONFIGURATION
+//--------------------------------------------------------------------+
+
+/// \brief tell the stack which mode (host/device/otg) the usb controller0 will be operated on. Possible value is
+/// from \ref group_mode. Note the hardware usb controller must support the selected mode.
+#define CFG_TUSB_RHPORT0_MODE
+
+/** USB controller in MCU often has limited access to specific RAM section. The Stack will use this macro to place internal variables
+  into the USB RAM section as follows. if your mcu's usb controller has no such limit, define CFG_TUSB_MEM_SECTION as empty macro.
+
+  @code
+  CFG_TUSB_MEM_SECTION uint8_t usb_xfer_buffer[10];
+  @endcode
+ */
+#define CFG_TUSB_MEM_SECTION
+
+#define CFG_TUSB_MCU          ///< Select one of the supported MCU, the value must be from \ref group_mcu
+#define CFG_TUSB_OS           ///< Select one of the supported RTOS, the value must be from \ref group_supported_os.
+#define CFG_TUD_TASK_PRIO ///< If \ref CFG_TUSB_OS is configured to use a real RTOS (other than OPT_OS_NONE). This determines the priority of the usb stack task.
+
+//--------------------------------------------------------------------+
+// HOST CONFIGURATION
+//--------------------------------------------------------------------+
+/** \defgroup CFG_TUSB_HOST Host Options
+ *  @{ */
+
+/** \brief Maximum number of device host stack can manage
+ * \n If hub class is not enabled, set this equal to number of controllers in host mode
+ * \n If hub class is enabled, make sure hub is also counted */
+#define CFG_TUSB_HOST_DEVICE_MAX
+
+/// \brief Buffer size used for getting device configuration descriptor. You may want to increase this from default (256)
+/// to support lengthy composite device especially with Audio or Video class
+#define CFG_TUSB_HOST_ENUM_BUFFER_SIZE
+
+/** \defgroup config_host_class Class Driver
+ * \brief For each Class Driver a value of 1 means enable, value of 0 mean disable
+ * @{ */
+#define CFG_TUH_HUB           ///< Enable Hub Class
+#define CFG_TUH_HID_KEYBOARD  ///< Enable HID Class for Keyboard
+#define CFG_TUH_HID_MOUSE     ///< Enable HID Class for Mouse
+#define CFG_TUSB_HOST_HID_GENERIC   ///< Enable HID Class for Generic (not supported yet)
+#define CFG_TUH_MSC           ///< Enable Mass Storage Class (SCSI subclass only)
+#define CFG_TUH_CDC           ///< Enable Virtual Serial (Communication Device Class)
+/** @} */
+
+/** @} */ // group Host
+
+//--------------------------------------------------------------------+
+// DEVICE CONFIGURATION
+//--------------------------------------------------------------------+
+/** \defgroup CFG_TUSB_DEVICE Device Options
+ *  @{ */
+
+#define CFG_TUD_ENDOINT0_SIZE ///< Max packet size of Cotnrol Endpoint, default is 64
+
+/// Application MUST define this variable and initialize its pointers's member to all required USB descriptors including
+/// Device Descriptor, Configuration Descriptor, String Descriptors, HID Report Descriptors etc ...
+tud_desc_init_t tusbd_descriptor_pointers;
+
+/** \defgroup config_device_class Class Driver
+ * \brief For each Class Driver a value of 1 means enable, value of 0 mean disable
+ * @{ */
+#define CFG_TUD_HID_KEYBOARD ///< Enable HID Class for Keyboard
+#define CFG_TUD_HID_MOUSE 	 ///< Enable HID Class for Mouse
+#define CFG_TUD_HID_GENERIC  ///< Enable HID Class for Generic (not supported yet)
+#define CFG_TUD_MSC 				 ///< Enable Mass Storage Class (SCSI subclass only)
+#define CFG_TUD_CDC 				 ///< Enable Virtual Serial (Communication Device Class)
+/** @} */
+
+/** @} */ // group Device
+
+/** @} */