diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 0da1df9c79bf..fbce1ba333b0 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -87,6 +87,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ID) },
 	{ USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) },
 	{ USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) },
+	{ USB_DEVICE(HL340_VENDOR_ID, HL340_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index d31f5d299989..226997d7cda8 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -107,3 +107,8 @@
 /* Corega CG-USBRS232R Serial Adapter */
 #define COREGA_VENDOR_ID	0x07aa
 #define COREGA_PRODUCT_ID	0x002a
+
+/* HL HL-340 (ID: 4348:5523) */
+#define HL340_VENDOR_ID		0x4348
+#define HL340_PRODUCT_ID	0x5523
+