diff --git a/class/hub/usbd_hub.c b/class/hub/usbd_hub.c
index 9af0d245..329e1f81 100644
--- a/class/hub/usbd_hub.c
+++ b/class/hub/usbd_hub.c
@@ -19,7 +19,7 @@ int hub_custom_request_handler(struct usb_setup_packet *setup, uint8_t **data, u
                  setup->bRequest);
 
     if (((setup->bmRequestType & USB_REQUEST_TYPE_MASK) == USB_REQUEST_CLASS) &&
-        ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_TO_DEVICE) &&
+        ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_RECIPIENT_DEVICE) &&
         (setup->bRequest == HUB_REQUEST_GET_DESCRIPTOR)) {
         uint8_t value = (uint8_t)(setup->wValue >> 8);
         uint8_t intf_num = (uint8_t)setup->wIndex;
@@ -36,7 +36,7 @@ int hub_custom_request_handler(struct usb_setup_packet *setup, uint8_t **data, u
     }
 
     else if (((setup->bmRequestType & USB_REQUEST_TYPE_MASK) == USB_REQUEST_CLASS) &&
-             ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_TO_OTHER)) {
+             ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) == USB_REQUEST_RECIPIENT_OTHER)) {
         uint8_t hub_port_feature = (uint8_t)(setup->wValue);
         uint8_t hub_port = (uint8_t)setup->wIndex;
 
diff --git a/common/usb_def.h b/common/usb_def.h
index 0667a33e..30db83e9 100644
--- a/common/usb_def.h
+++ b/common/usb_def.h
@@ -51,12 +51,12 @@
 #define USB_REQUEST_RESERVED   (3U << USB_REQUEST_TYPE_SHIFT)
 #define USB_REQUEST_TYPE_MASK  (3U << USB_REQUEST_TYPE_SHIFT)
 
-#define USB_REQUEST_RECIPIENT_SHIFT 0U /* Bits 0:4: Recipient */
-#define USB_REQUEST_TO_DEVICE       (0U << USB_REQUEST_RECIPIENT_SHIFT)
-#define USB_REQUEST_TO_INTERFACE    (1U << USB_REQUEST_RECIPIENT_SHIFT)
-#define USB_REQUEST_TO_ENDPOINT     (2U << USB_REQUEST_RECIPIENT_SHIFT)
-#define USB_REQUEST_TO_OTHER        (3U << USB_REQUEST_RECIPIENT_SHIFT)
-#define USB_REQUEST_RECIPIENT_MASK  (3U << USB_REQUEST_RECIPIENT_SHIFT)
+#define USB_REQUEST_RECIPIENT_SHIFT     0U /* Bits 0:4: Recipient */
+#define USB_REQUEST_RECIPIENT_DEVICE    (0U << USB_REQUEST_RECIPIENT_SHIFT)
+#define USB_REQUEST_RECIPIENT_INTERFACE (1U << USB_REQUEST_RECIPIENT_SHIFT)
+#define USB_REQUEST_RECIPIENT_ENDPOINT  (2U << USB_REQUEST_RECIPIENT_SHIFT)
+#define USB_REQUEST_RECIPIENT_OTHER     (3U << USB_REQUEST_RECIPIENT_SHIFT)
+#define USB_REQUEST_RECIPIENT_MASK      (3U << USB_REQUEST_RECIPIENT_SHIFT)
 
 /* USB Standard Request Codes */
 #define USB_REQUEST_GET_STATUS          0x00
diff --git a/core/usbd_core.c b/core/usbd_core.c
index 56d8f156..9d707a22 100644
--- a/core/usbd_core.c
+++ b/core/usbd_core.c
@@ -736,21 +736,21 @@ static int usbd_standard_request_handler(struct usb_setup_packet *setup, uint8_t
     int rc = 0;
 
     switch (setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) {
-        case USB_REQUEST_TO_DEVICE:
+        case USB_REQUEST_RECIPIENT_DEVICE:
             if (usbd_std_device_req_handler(setup, data, len) == false) {
                 rc = -1;
             }
 
             break;
 
-        case USB_REQUEST_TO_INTERFACE:
+        case USB_REQUEST_RECIPIENT_INTERFACE:
             if (usbd_std_interface_req_handler(setup, data, len) == false) {
                 rc = -1;
             }
 
             break;
 
-        case USB_REQUEST_TO_ENDPOINT:
+        case USB_REQUEST_RECIPIENT_ENDPOINT:
             if (usbd_std_endpoint_req_handler(setup, data, len) == false) {
                 rc = -1;
             }
@@ -779,7 +779,7 @@ static int usbd_class_request_handler(struct usb_setup_packet *setup, uint8_t **
 {
     USBD_LOG_DBG("bRequest 0x%02x, wIndex 0x%04x\r\n", setup->bRequest, setup->wIndex);
 
-    if ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_TO_INTERFACE) {
+    if ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_RECIPIENT_INTERFACE) {
         return -1;
     }
 
@@ -815,7 +815,7 @@ static int usbd_vendor_request_handler(struct usb_setup_packet *setup, uint8_t *
 {
     USBD_LOG_DBG("bRequest 0x%02x, wValue0x%04x, wIndex 0x%04x\r\n", setup->bRequest, setup->wValue, setup->wIndex);
 
-    // if((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_TO_DEVICE)
+    // if((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_RECIPIENT_DEVICE)
     // {
     //     return -1;
     // }
@@ -889,7 +889,7 @@ static int usbd_custom_request_handler(struct usb_setup_packet *setup, uint8_t *
 {
     USBD_LOG_DBG("bRequest 0x%02x, wIndex 0x%04x\r\n", setup->bRequest, setup->wIndex);
 
-    if ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_TO_INTERFACE) {
+    if ((setup->bmRequestType & USB_REQUEST_RECIPIENT_MASK) != USB_REQUEST_RECIPIENT_INTERFACE) {
         return -1;
     }