diff --git a/BSP/linux-kernel/drivers/usb/serial/option.c b/BSP/linux-kernel/drivers/usb/serial/option.c
index ae55104e2..d7b2d74c5 100644
--- a/BSP/linux-kernel/drivers/usb/serial/option.c
+++ b/BSP/linux-kernel/drivers/usb/serial/option.c
@@ -2070,6 +2070,35 @@ static int option_probe(struct usb_serial *serial,
 				&serial->interface->cur_altsetting->desc;
 	unsigned long device_flags = id->driver_info;
 
+#if 1 //Added by Quectel
+	//Quectel UC20's interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9003)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	//Quectel EC20(MDM9215)'s interface 4 can be used as USB Network device
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x05C6) && serial->dev->descriptor.idProduct == cpu_to_le16(0x9215)
+		&& serial->interface->cur_altsetting->desc.bInterfaceNumber >= 4)
+		return -ENODEV;
+
+	if (serial->dev->descriptor.idVendor == cpu_to_le16(0x2C7C)) {
+		__u16 idProduct = le16_to_cpu(serial->dev->descriptor.idProduct);
+		struct usb_interface_descriptor *intf = &serial->interface->cur_altsetting->desc;
+
+		if (intf->bInterfaceClass != 0xFF || intf->bInterfaceSubClass == 0x42) {
+			//ECM, RNDIS, NCM, MBIM, ACM, UAC, ADB
+			return -ENODEV;
+		}
+
+		if ((idProduct&0xF000) == 0x0000) {
+			//MDM interface 4 is QMI
+			if (intf->bInterfaceNumber == 4 && intf->bNumEndpoints == 3
+				&& intf->bInterfaceSubClass == 0xFF && intf->bInterfaceProtocol == 0xFF)
+				return -ENODEV;
+		}
+	}
+#endif
+
 	/* Never bind to the CD-Rom emulation interface	*/
 	if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE)
 		return -ENODEV;