2 files changed, 6 insertions, 0 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 82151207d814..9498da461036 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -498,6 +498,7 @@ static struct usb_device_id id_table_combined [] = {
         { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) },
         { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
         { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
+        { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) },
         { },                                    /* Optional parameter entry */
         { }                                     /* Terminating entry */
 };
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 2c55a5ea9c99..3e4123f09e0d 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -426,6 +426,11 @@
 #define PAPOUCH_VID                     0x5050  /* Vendor ID */
 #define PAPOUCH_TMU_PID                 0x0400  /* TMU USB Thermometer */
 
+/*
+ * ACG Identification Technologies GmbH products (http://www.acg.de/).
+ * Submitted by anton -at- goto10 -dot- org.
+ */
+#define FTDI_ACG_HFDUAL_PID             0xDD20  /* HF Dual ISO Reader (RFID) */
 
 /* Commands */
 #define FTDI_SIO_RESET          0 /* Reset the port */