diff --git a/src/class/hid/hid_host.c b/src/class/hid/hid_host.c
index 5058191f4..a96eb6276 100644
--- a/src/class/hid/hid_host.c
+++ b/src/class/hid/hid_host.c
@@ -173,6 +173,56 @@ bool hidh_open_subtask(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t c
   tusb_desc_endpoint_t const * p_endpoint_desc = (tusb_desc_endpoint_t const *) p_desc;
   TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint_desc->bDescriptorType, TUSB_ERROR_INVALID_PARA);
 
+  if ( HID_SUBCLASS_BOOT == p_interface_desc->bInterfaceSubClass )
+  {
+    #if CFG_TUH_HID_KEYBOARD
+    if ( HID_PROTOCOL_KEYBOARD == p_interface_desc->bInterfaceProtocol)
+    {
+      TU_ASSERT( hidh_interface_open(rhport, dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &keyboardh_data[dev_addr-1]) );
+      TU_LOG2_HEX(keyboardh_data[dev_addr-1].ep_in);
+    } else
+    #endif
+
+    #if CFG_TUH_HID_MOUSE
+    if ( HID_PROTOCOL_MOUSE == p_interface_desc->bInterfaceProtocol)
+    {
+      TU_ASSERT ( hidh_interface_open(rhport, dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &mouseh_data[dev_addr-1]) );
+      TU_LOG2_HEX(mouseh_data[dev_addr-1].ep_in);
+    } else
+    #endif
+
+    {
+      // Not supported protocol
+      return false;
+    }
+  }else
+  {
+    // Not supported subclass
+    return false;
+  }
+
+  *p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t);
+
+  return true;
+}
+
+bool hidh_set_config(uint8_t dev_addr, uint8_t itf_num)
+{
+#if 0
+  //------------- Get Report Descriptor TODO HID parser -------------//
+  if ( p_desc_hid->bNumDescriptors )
+  {
+    STASK_INVOKE(
+        usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_STANDARD, TUSB_REQ_RCPT_INTERFACE),
+                                   TUSB_REQ_GET_DESCRIPTOR, (p_desc_hid->bReportType << 8), 0,
+                                   p_desc_hid->wReportLength, report_descriptor ),
+        error
+    );
+    (void) error; // if error in getting report descriptor --> treating like there is none
+  }
+#endif
+
+#if 0
   // SET IDLE = 0 request
   // Device can stall if not support this request
   tusb_control_request_t const request =
@@ -191,52 +241,23 @@ bool hidh_open_subtask(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t c
 
   // stall is a valid response for SET_IDLE, therefore we could ignore result of this request
   tuh_control_xfer(dev_addr, &request, NULL, NULL);
+#endif
 
-#if 0
-  //------------- Get Report Descriptor TODO HID parser -------------//
-  if ( p_desc_hid->bNumDescriptors )
+  usbh_driver_set_config_complete(dev_addr, itf_num);
+
+#if CFG_TUH_HID_KEYBOARD
+  if ( keyboardh_data[dev_addr-1].itf_num == itf_num)
   {
-    STASK_INVOKE(
-        usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_STANDARD, TUSB_REQ_RCPT_INTERFACE),
-                                   TUSB_REQ_GET_DESCRIPTOR, (p_desc_hid->bReportType << 8), 0,
-                                   p_desc_hid->wReportLength, report_descriptor ),
-        error
-    );
-    (void) error; // if error in getting report descriptor --> treating like there is none
+    tuh_hid_keyboard_mounted_cb(dev_addr);
   }
 #endif
 
-  if ( HID_SUBCLASS_BOOT == p_interface_desc->bInterfaceSubClass )
+#if CFG_TUH_HID_MOUSE
+  if ( mouseh_data[dev_addr-1].ep_in == itf_num )
   {
-    #if CFG_TUH_HID_KEYBOARD
-    if ( HID_PROTOCOL_KEYBOARD == p_interface_desc->bInterfaceProtocol)
-    {
-      TU_ASSERT( hidh_interface_open(rhport, dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &keyboardh_data[dev_addr-1]) );
-      TU_LOG2_HEX(keyboardh_data[dev_addr-1].ep_in);
-      tuh_hid_keyboard_mounted_cb(dev_addr);
-    } else
-    #endif
-
-    #if CFG_TUH_HID_MOUSE
-    if ( HID_PROTOCOL_MOUSE == p_interface_desc->bInterfaceProtocol)
-    {
-      TU_ASSERT ( hidh_interface_open(rhport, dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &mouseh_data[dev_addr-1]) );
-      TU_LOG2_HEX(mouseh_data[dev_addr-1].ep_in);
-      tuh_hid_mouse_mounted_cb(dev_addr);
-    } else
-    #endif
-
-    {
-      // Not supported protocol
-      return false;
-    }
-  }else
-  {
-    // Not supported subclass
-    return false;
+    tuh_hid_mouse_mounted_cb(dev_addr);
   }
-
-  *p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t);
+#endif
 
   return true;
 }
diff --git a/src/class/hid/hid_host.h b/src/class/hid/hid_host.h
index 324dad203..5c77398f8 100644
--- a/src/class/hid/hid_host.h
+++ b/src/class/hid/hid_host.h
@@ -197,6 +197,7 @@ void tuh_hid_generic_isr(uint8_t dev_addr, xfer_result_t event);
 //--------------------------------------------------------------------+
 void hidh_init(void);
 bool hidh_open_subtask(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length);
+bool hidh_set_config(uint8_t dev_addr, uint8_t itf_num);
 bool hidh_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
 void hidh_close(uint8_t dev_addr);
 
diff --git a/src/class/msc/msc_host.c b/src/class/msc/msc_host.c
index 83423cfc7..02ca81e77 100644
--- a/src/class/msc/msc_host.c
+++ b/src/class/msc/msc_host.c
@@ -334,9 +334,9 @@ bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32
 // MSC Enumeration
 //--------------------------------------------------------------------+
 
-static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
-static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
-static bool open_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
+static bool config_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
+static bool config_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
+static bool config_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
 
 bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
 {
@@ -367,6 +367,14 @@ bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it
   p_msc->itf_num = itf_desc->bInterfaceNumber;
   (*p_length) += sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
 
+  return true;
+}
+
+bool msch_set_config(uint8_t dev_addr, uint8_t itf_num)
+{
+  msch_interface_t* p_msc = get_itf(dev_addr);
+  TU_ASSERT(p_msc->itf_num == itf_num);
+
   //------------- Get Max Lun -------------//
   TU_LOG2("MSC Get Max Lun\r\n");
   tusb_control_request_t request =
@@ -379,15 +387,15 @@ bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it
     },
     .bRequest = MSC_REQ_GET_MAX_LUN,
     .wValue   = 0,
-    .wIndex   = p_msc->itf_num,
+    .wIndex   = itf_num,
     .wLength  = 1
   };
-  TU_ASSERT(tuh_control_xfer(dev_addr, &request, &p_msc->max_lun, open_get_maxlun_complete));
+  TU_ASSERT(tuh_control_xfer(dev_addr, &request, &p_msc->max_lun, config_get_maxlun_complete));
 
   return true;
 }
 
-static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result)
+static bool config_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result)
 {
   (void) request;
 
@@ -399,17 +407,19 @@ static bool open_get_maxlun_complete (uint8_t dev_addr, tusb_control_request_t c
 
   // TODO multiple LUN support
   TU_LOG2("SCSI Test Unit Ready\r\n");
-  tuh_msc_test_unit_ready(dev_addr, 0, open_test_unit_ready_complete);
+  tuh_msc_test_unit_ready(dev_addr, 0, config_test_unit_ready_complete);
 
   return true;
 }
 
-static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+static bool config_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
 {
   if (csw->status == 0)
   {
     msch_interface_t* p_msc = get_itf(dev_addr);
 
+    usbh_driver_set_config_complete(dev_addr, p_msc->itf_num);
+
     // Unit is ready, Enumeration is complete
     p_msc->mounted = true;
     tuh_msc_mounted_cb(dev_addr);
@@ -418,16 +428,16 @@ static bool open_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* cbw
     // Note: During enumeration, some device fails Test Unit Ready and require a few retries
     // with Request Sense to start working !!
     // TODO limit number of retries
-    TU_ASSERT(tuh_msc_request_sense(dev_addr, cbw->lun, msch_buffer, open_request_sense_complete));
+    TU_ASSERT(tuh_msc_request_sense(dev_addr, cbw->lun, msch_buffer, config_request_sense_complete));
   }
 
   return true;
 }
 
-static bool open_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
+static bool config_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw)
 {
   TU_ASSERT(csw->status == 0);
-  TU_ASSERT(tuh_msc_test_unit_ready(dev_addr, cbw->lun, open_test_unit_ready_complete));
+  TU_ASSERT(tuh_msc_test_unit_ready(dev_addr, cbw->lun, config_test_unit_ready_complete));
   return true;
 }
 
diff --git a/src/class/msc/msc_host.h b/src/class/msc/msc_host.h
index 06b1067cc..5913350b8 100644
--- a/src/class/msc/msc_host.h
+++ b/src/class/msc/msc_host.h
@@ -125,6 +125,7 @@ void tuh_msc_unmounted_cb(uint8_t dev_addr);
 
 void msch_init(void);
 bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length);
+bool msch_set_config(uint8_t dev_addr, uint8_t itf_num);
 bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
 void msch_close(uint8_t dev_addr);
 
diff --git a/src/host/usbh.c b/src/host/usbh.c
index 7d1201aa4..3e321652b 100644
--- a/src/host/usbh.c
+++ b/src/host/usbh.c
@@ -67,6 +67,7 @@ static usbh_class_driver_t const usbh_class_drivers[] =
       .class_code = TUSB_CLASS_MSC,
       .init       = msch_init,
       .open       = msch_open,
+      .set_config = msch_set_config,
       .xfer_cb    = msch_xfer_cb,
       .close      = msch_close
     },
@@ -78,6 +79,7 @@ static usbh_class_driver_t const usbh_class_drivers[] =
       .class_code = TUSB_CLASS_HID,
       .init       = hidh_init,
       .open       = hidh_open_subtask,
+      .set_config = hidh_set_config,
       .xfer_cb    = hidh_xfer_cb,
       .close      = hidh_close
     },
@@ -308,6 +310,7 @@ bool usbh_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const
     usbh_device_t* dev = &_usbh_devices[dev_addr];
 
     // new endpoints belongs to latest interface (last valid value)
+    // TODO FIXME not true with ISO
     uint8_t drvid = 0xff;
     for(uint8_t i=0; i < sizeof(dev->itf2drv); i++)
     {
@@ -525,6 +528,31 @@ static uint8_t get_new_address(void)
   return CFG_TUSB_HOST_DEVICE_MAX+1;
 }
 
+void usbh_driver_set_config_complete(uint8_t dev_addr, uint8_t itf_num)
+{
+  usbh_device_t* dev = &_usbh_devices[dev_addr];
+
+  for(itf_num++; itf_num < sizeof(dev->itf2drv); itf_num++)
+  {
+    // continue with next valid interface
+    uint8_t const drv_id = dev->itf2drv[itf_num];
+    if (drv_id != 0xff)
+    {
+      usbh_class_driver_t const * driver = &usbh_class_drivers[drv_id];
+      TU_LOG2("%s set config itf = %u\r\n", driver->name, itf_num);
+      driver->set_config(dev_addr, itf_num);
+      break;
+    }
+  }
+
+  // all interface are configured
+  if (itf_num == sizeof(dev->itf2drv))
+  {
+    // Invoke callback if available
+    if (tuh_mount_cb) tuh_mount_cb(dev_addr);
+  }
+}
+
 //--------------------------------------------------------------------+
 // Enumeration Process
 // is a lengthy process with a seires of control transfer to configure
@@ -783,6 +811,7 @@ static bool enum_get_9byte_config_desc_complete(uint8_t dev_addr, tusb_control_r
     .wValue   = (TUSB_DESC_CONFIGURATION << 8) | (CONFIG_NUM - 1),
     .wIndex   = 0,
     .wLength  = total_len
+
   };
 
   TU_ASSERT( tuh_control_xfer(dev_addr, &new_request, _usbh_ctrl_buf, enum_get_config_desc_complete) );
@@ -795,6 +824,10 @@ static bool enum_get_config_desc_complete(uint8_t dev_addr, tusb_control_request
   (void) request;
   TU_ASSERT(XFER_RESULT_SUCCESS == result);
 
+  // Parse configuration & set up drivers
+  // Driver open aren't allowed to make any usb transfer yet
+  parse_configuration_descriptor(dev_addr, (tusb_desc_configuration_t*) _usbh_ctrl_buf);
+
   TU_LOG2("Set Configuration Descriptor\r\n");
   tusb_control_request_t const new_request =
   {
@@ -825,12 +858,10 @@ static bool enum_set_config_complete(uint8_t dev_addr, tusb_control_request_t co
   dev->configured = 1;
   dev->state = TUSB_DEVICE_STATE_CONFIGURED;
 
-  // Parse configuration & set up drivers
-  // TODO driver open still use usbh_control_xfer
-  parse_configuration_descriptor(dev_addr, (tusb_desc_configuration_t*) _usbh_ctrl_buf);
-
-  // Invoke callback if available
-  if (tuh_mount_cb) tuh_mount_cb(dev_addr);
+  // Start the Set Configuration process for interfaces (itf = 0xff)
+  // Since driver can perform control transfer within its set_config, this is done asynchronously.
+  // The process continue with next interface when class driver complete its sequence with usbh_driver_set_config_complete()
+  usbh_driver_set_config_complete(dev_addr, 0xff);
 
   return true;
 }
@@ -883,9 +914,6 @@ static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configura
           TU_LOG2("%s open\r\n", driver->name);
 
           uint16_t itf_len = 0;
-
-          // TODO class driver can perform control transfer when opening which is
-          // non-blocking --> need a way to coordinate composite device
           TU_ASSERT( driver->open(dev->rhport, dev_addr, desc_itf, &itf_len) );
           TU_ASSERT( itf_len >= sizeof(tusb_desc_interface_t) );
           p_desc += itf_len;
diff --git a/src/host/usbh.h b/src/host/usbh.h
index fde1dd11c..19ab72f54 100644
--- a/src/host/usbh.h
+++ b/src/host/usbh.h
@@ -58,10 +58,11 @@ typedef struct {
 
   uint8_t class_code;
 
-  void (* const init) (void);
-  bool (* const open)(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const * itf_desc, uint16_t* outlen);
-  bool (* const xfer_cb) (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
-  void (* const close) (uint8_t);
+  void (* const init       )(void);
+  bool (* const open       )(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const * itf_desc, uint16_t* outlen);
+  bool (* const set_config )(uint8_t dev_addr, uint8_t itf_num);
+  bool (* const xfer_cb    )(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
+  void (* const close      )(uint8_t dev_addr);
 } usbh_class_driver_t;
 
 typedef bool (*tuh_control_complete_cb_t)(uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
@@ -105,6 +106,7 @@ TU_ATTR_WEAK void tuh_umount_cb(uint8_t dev_addr);
 
 //--------------------------------------------------------------------+
 // CLASS-USBH & INTERNAL API
+// TODO move to usbh_pvt.h
 //--------------------------------------------------------------------+
 
 bool usbh_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc);
@@ -116,6 +118,8 @@ bool usbh_edpt_claim(uint8_t dev_addr, uint8_t ep_addr);
 
 bool usbh_control_xfer (uint8_t dev_addr, tusb_control_request_t* request, uint8_t* data); // TODO remove later
 
+void usbh_driver_set_config_complete(uint8_t dev_addr, uint8_t itf_num);
+
 #ifdef __cplusplus
  }
 #endif
diff --git a/src/host/usbh_hcd.h b/src/host/usbh_hcd.h
index 20348eed1..79b547fb3 100644
--- a/src/host/usbh_hcd.h
+++ b/src/host/usbh_hcd.h
@@ -47,6 +47,8 @@
 //--------------------------------------------------------------------+
 // USBH-HCD common data structure
 //--------------------------------------------------------------------+
+
+// TODO move to usbh.c
 typedef struct {
   //------------- port -------------//
   uint8_t rhport;
@@ -95,7 +97,6 @@ typedef struct {
     // TODO merge ep2drv here, 4-bit should be sufficient
   }ep_status[CFG_TUH_EP_MAX][2];
 
-
 // Mutex for claiming endpoint, only needed when using with preempted RTOS
 #if CFG_TUSB_OS != OPT_OS_NONE
   osal_mutex_def_t mutexdef;