1 files changed, 3 insertions, 3 deletions
diff --git a/port/ch32/ch58x/usb_ch585_usbhs_dc.c b/port/ch32/ch58x/usb_ch585_usbhs_dc.c
index 2e6724c2..1f33a36d 100644
--- a/port/ch32/ch58x/usb_ch585_usbhs_dc.c
+++ b/port/ch32/ch58x/usb_ch585_usbhs_dc.c
@@ -41,7 +41,7 @@
  * @brief   Endpoint information structure
  */
 typedef struct _usbd_ep_info {
-    uint8_t mps;       /* Maximum packet length of endpoint */
+    uint16_t mps;       /* Maximum packet length of endpoint */
     uint8_t eptype;    /* Endpoint Type */
     uint8_t ep_enable; /* Endpoint enable */
     uint8_t *xfer_buf;
@@ -143,7 +143,7 @@ int usbd_ep_open(uint8_t busid, const struct usb_endpoint_descriptor *ep)
         return -1;
     }
 
-    uint8_t mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
+    uint16_t mps = USB_GET_MAXPACKETSIZE(ep->wMaxPacketSize);
     USB_SET_MAX_LEN(epid, mps);
 
     if (USB_EP_DIR_IS_IN(ep->bEndpointAddress)) {
@@ -523,4 +523,4 @@ void USB2_DEVICE_IRQHandler(void)
 {
     extern void USBD_IRQHandler(uint8_t busid);
     USBD_IRQHandler(0);
-}
-\ No newline at end of file
+}