diff --git a/tests/test/host/test_enum_task.c b/tests/test/host/test_enum_task.c
index 645635493..9fcb2fed0 100644
--- a/tests/test/host/test_enum_task.c
+++ b/tests/test/host/test_enum_task.c
@@ -144,6 +144,9 @@ tusb_error_t control_xfer_stub(uint8_t dev_addr, const tusb_std_request_t * cons
       TEST_ASSERT_EQUAL(desc_configuration.configuration.wTotalLength, p_request->wLength);
       memcpy(data, &desc_configuration, p_request->wLength);
     break;
+
+    default:
+      return TUSB_ERROR_OSAL_TIMEOUT;
   }
 
   return TUSB_ERROR_NONE;
@@ -210,3 +213,14 @@ void test_enum_failed_get_full_config_desc(void)
 
   usbh_enumeration_task();
 }
+
+void test_enum_parse_config_desc(void)
+{
+  osal_semaphore_wait_StubWithCallback(semaphore_wait_timeout_stub(5));
+  hcd_pipe_control_open_ExpectAndReturn(1, desc_device.bMaxPacketSize0, TUSB_ERROR_NONE);
+  tusbh_device_attached_cb_ExpectAndReturn((tusb_descriptor_device_t*) enum_data_buffer, 1);
+
+//  hid_install
+
+  usbh_enumeration_task();
+}
diff --git a/tests/test/host/test_usbh.c b/tests/test/host/test_usbh.c
index 59edf42e5..dfd72f186 100644
--- a/tests/test/host/test_usbh.c
+++ b/tests/test/host/test_usbh.c
@@ -41,6 +41,7 @@
 #include "mock_osal.h"
 #include "mock_hcd.h"
 #include "mock_usbh_hcd.h"
+#include "mock_tusb_callback.h"
 
 extern usbh_device_info_t usbh_device_info_pool[TUSB_CFG_HOST_DEVICE_MAX+1];
 tusb_handle_device_t dev_hdl;
@@ -111,18 +112,28 @@ void test_usbh_init_reporter_queue_create_failed(void)
   TEST_IGNORE();
 }
 
+void class_init_expect(void)
+{
+  hidh_init_Expect();
+
+  //TODO update more classes
+}
+
 void test_usbh_init_ok(void)
 {
-  uint32_t dummy;
+  osal_queue_handle_t dummy;
 
   usbh_device_info_t device_info_zero[TUSB_CFG_HOST_DEVICE_MAX+1];
   memclr_(device_info_zero, sizeof(usbh_device_info_t)*(TUSB_CFG_HOST_DEVICE_MAX+1));
 
   hcd_init_expect();
   osal_task_create_IgnoreAndReturn(TUSB_ERROR_NONE);
-  osal_queue_create_IgnoreAndReturn((osal_queue_handle_t)(&dummy));
+  osal_queue_create_IgnoreAndReturn(dummy);
+
+  class_init_expect();
 
   TEST_ASSERT_EQUAL(TUSB_ERROR_NONE, usbh_init());
 
   TEST_ASSERT_EQUAL_MEMORY(device_info_zero, usbh_device_info_pool, sizeof(usbh_device_info_t)*(TUSB_CFG_HOST_DEVICE_MAX+1));
+
 }
diff --git a/tests/test/support/tusb_callback.h b/tests/test/support/tusb_callback.h
index 5a6e11eb5..c99baa6bd 100644
--- a/tests/test/support/tusb_callback.h
+++ b/tests/test/support/tusb_callback.h
@@ -61,6 +61,7 @@
 uint8_t      tusbh_device_attached_cb (tusb_descriptor_device_t const *p_desc_device) ATTR_WEAK ATTR_WARN_UNUSED_RESULT;
 void         tusbh_device_mounted_cb (tusb_handle_device_t device_hdl) ATTR_WEAK;
 void         tusbh_device_mount_failed_cb(tusb_error_t error, tusb_descriptor_device_t const *p_desc_device) ATTR_WEAK;
+void         hidh_init(void);
 
 #ifdef __cplusplus
  }
diff --git a/tinyusb/class/hid_host.h b/tinyusb/class/hid_host.h
index 0fb1c3299..e1e4c2c9b 100644
--- a/tinyusb/class/hid_host.h
+++ b/tinyusb/class/hid_host.h
@@ -81,8 +81,16 @@ typedef struct {
   keyboard_interface_t instance[TUSB_CFG_HOST_HID_KEYBOARD_NO_INSTANCES_PER_DEVICE];
 } class_hid_keyboard_info_t;
 
-void class_hid_keyboard_init(void);
-tusb_error_t class_hid_keyboard_install(uint8_t const dev_addr, uint8_t const *descriptor) ATTR_WARN_UNUSED_RESULT;
+void hidh_keyboard_init(void);
+tusb_error_t hidh_keyboard_install(uint8_t const dev_addr, uint8_t const *descriptor) ATTR_WARN_UNUSED_RESULT;
+
+static inline void hidh_init(void) ATTR_ALWAYS_INLINE;
+static inline void hidh_init(void)
+{
+#if TUSB_CFG_HOST_HID_KEYBOARD
+  hidh_keyboard_init();
+#endif
+}
 
 #endif
 
diff --git a/tinyusb/common/common.h b/tinyusb/common/common.h
index 6859b0e01..c883faf2c 100644
--- a/tinyusb/common/common.h
+++ b/tinyusb/common/common.h
@@ -79,8 +79,10 @@
 // TODO try to manipulate gcc cmd option instead
 #ifndef _TEST_
   #define STATIC_ static
+  #define INLINE_ inline
 #else
   #define STATIC_
+  #define INLINE_
 #endif
 
 #define STRING_(x)  #x  // stringify without expand
diff --git a/tinyusb/host/usbh.c b/tinyusb/host/usbh.c
index 00574d52f..faa305464 100644
--- a/tinyusb/host/usbh.c
+++ b/tinyusb/host/usbh.c
@@ -93,10 +93,16 @@ tusb_error_t usbh_init(void)
     ASSERT_STATUS( hcd_init(TUSB_CFG_HOST_CONTROLLER_START_INDEX+i) );
   }
 
+  //------------- Enumeration & Reporter Task init -------------//
   ASSERT_STATUS( osal_task_create(&enum_task) );
   enum_queue_hdl = osal_queue_create(&enum_queue);
   ASSERT_PTR(enum_queue_hdl, TUSB_ERROR_OSAL_QUEUE_FAILED);
 
+  //------------- class init -------------//
+#if HOST_CLASS_HID
+  hidh_init();
+#endif
+
   return TUSB_ERROR_NONE;
 }
 
@@ -109,7 +115,7 @@ void usbh_enumeration_task(void)
   usbh_enumerate_t enum_entry;
   tusb_std_request_t request_packet;
 
-  // for OSAL_NONE local variable wont retain value after blocking service sem_wait/queue_recv
+  // for OSAL_NONE local variable won't retain value after blocking service sem_wait/queue_recv
   static uint8_t new_addr;
   static uint8_t configure_selected = 1;
 
diff --git a/tinyusb/tusb_option.h b/tinyusb/tusb_option.h
index d2001eae3..3fab8f1f2 100644
--- a/tinyusb/tusb_option.h
+++ b/tinyusb/tusb_option.h
@@ -123,7 +123,7 @@
     #warning TUSB_CFG_HOST_ENUM_BUFFER_SIZE is not defined, default value is 256
   #endif
 
-  #define HOST_CLASS_HID   ( (defined TUSB_CFG_HOST_HID_KEYBOARD) )
+  #define HOST_CLASS_HID   ( TUSB_CFG_HOST_HID_KEYBOARD )
   #define HOST_EHCI
 #endif // end TUSB_CFG_HOST