--- linux-2.6.32/drivers/usb/serial/ftdi_sio.c
+++ linux-2.6.32/drivers/usb/serial/ftdi_sio.c
@@ -855,6 +855,10 @@
 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID3) },
 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID4) },
 	{ USB_DEVICE(FTDI_VID, FTDI_RF_R106) },
+	{ USB_DEVICE(QUAD_VID, QUADMOUSE_PID1) },
+	{ USB_DEVICE(QUAD_VID, QUADMOUSE_PID2) },
+	{ USB_DEVICE(QUAD_VID, QUADMOUSE_PID3) },
+	{ USB_DEVICE(QUAD_VID, QUADMOUSE_PID4) },
 	{ },					/* Optional parameter entry */
 	{ }					/* Terminating entry */
 };
--- linux-2.6.32/drivers/usb/serial/ftdi_sio.h
+++ linux-2.6.32/drivers/usb/serial/ftdi_sio.h
@@ -216,6 +216,11 @@
  */
 
 
+/* Interface indicies for FT2232, FT2232H and FT4232H devices*/
+#define INTERFACE_A		1
+#define INTERFACE_B		2
+#define INTERFACE_C		3
+#define INTERFACE_D		4
 
 /* FTDI_SIO_MODEM_CTRL */
 #define FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE 0x40
--- linux-2.6.32/drivers/usb/serial/ftdi_sio_ids.h
+++ linux-2.6.32/drivers/usb/serial/ftdi_sio_ids.h
@@ -490,6 +490,12 @@
 #define FTDI_8U232AM_PID2	0x6002	/* FTDI USB2Serial */
 #define FTDI_8U232AM_PID3	0x6003	/* FTDI USB2Serial */
 #define FTDI_8U232AM_PID4	0x6004	/* FTDI USB2Serial */
+
+#define QUAD_VID                      0x0403
+#define QUADMOUSE_PID1   0x0001  /* Quadmouse USB */
+#define QUADMOUSE_PID2   0x0002  /* Quadmouse USB */
+#define QUADMOUSE_PID3   0x0003  /* Quadmouse USB */
+#define QUADMOUSE_PID4   0x0004  /* Quadmouse USB */
 
 /*
  * Video Networks Limited / Homechoice in the UK use an ftdi-based device