From 794ee9704fdcb73c2007c8a35014f2f33f72d1b5 Mon Sep 17 00:00:00 2001
From: Chris Liang <cyliang@nuvoton.com>
Date: Fri, 1 Dec 2023 20:17:06 +0800
Subject: [PATCH] Update USBCDC.h to support ZLP

---
 drivers/usb/include/usb/USBCDC.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/include/usb/USBCDC.h b/drivers/usb/include/usb/USBCDC.h
index 777b352ad0..8e75b56709 100644
--- a/drivers/usb/include/usb/USBCDC.h
+++ b/drivers/usb/include/usb/USBCDC.h
@@ -230,6 +230,7 @@ protected:
     uint8_t _rx_buffer[CDC_MAX_PACKET_SIZE];
     uint8_t *_rx_buf;
     uint32_t _rx_size;
+    bool _trans_zlp;
 };
 
 /** @}*/