[PATCH] USB: ftdi_sio: add support for ASK RDR 400 series card reader

This patch adds support for an ASK RDR 400 series contactless card
reader <http://www.ask.fr/uk/products_and_services/terminals.html> to
the ftdi_sio driver's device ID table.  The product ID was supplied by
Adriano Couto on the ftdi-usb-sio-devel list.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 7c31d59..2c55a5e 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -156,6 +156,11 @@
 #define ICOM_ID1_PID            0x0004
 
 /*
+ * ASK.fr devices
+ */
+#define FTDI_ASK_RDR400_PID	0xC991	/* ASK RDR 400 series card reader */
+
+/*
  * DSS-20 Sync Station for Sony Ericsson P800
  */