[PATCH] USB: ftdi_sio vendor code for RR-CirKits LocoBuffer USB

This patch adds recognition of the RR-CirKits LocoBuffer USB
to the existing FTDI driver.  http://www.rr-cirkits.com

Signed-off-by: Nathan Bronson <ngb@sns-usa.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/ftdi_sio.c

@@ -493,6 +493,7 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_777_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_WESTREX_MODEL_8900F_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) },
 	{ USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) },
 	{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) },
 	{ },					/* Optional parameter entry */

drivers/usb/serial/ftdi_sio.h

@@ -399,6 +399,11 @@
 #define FTDI_WESTREX_MODEL_777_PID	0xDC00	/* Model 777 */
 #define FTDI_WESTREX_MODEL_8900F_PID	0xDC01	/* Model 8900F */
 
+/*
+ * RR-CirKits LocoBuffer USB (http://www.rr-cirkits.com)
+ */
+#define FTDI_RRCIRKITS_LOCOBUFFER_PID	0xc7d0	/* LocoBuffer USB */
+
 /*
  * Eclo (http://www.eclo.pt/) product IDs.
  * PID 0xEA90 submitted by Martin Grill.