diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index f34a9bb..012e63e 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -89,6 +89,7 @@
 
 static struct usb_device_id id_table_earthmate [] = {
 	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
+	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
 	{ }						/* Terminating entry */
 };
 
@@ -99,6 +100,7 @@
 
 static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB) },
+	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
 	{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
 	{ }						/* Terminating entry */
 };
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index 1012ee6..1fa119e 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -13,6 +13,7 @@
 /* DeLorme Earthmate USB - a GPS device */
 #define	VENDOR_ID_DELORME		 0x1163
 #define PRODUCT_ID_EARTHMATEUSB		 0x0100
+#define PRODUCT_ID_EARTHMATEUSB_LT20	 0x0200
 
 /* Cypress HID->COM RS232 Adapter */
 #define VENDOR_ID_CYPRESS		 0x04b4