diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 7fbba462a68..e0e2b94e783 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -809,6 +809,7 @@ static struct usb_device_id id_table_combined [] = {
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
 	{ USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) },
 	{ USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) },
+	{ USB_DEVICE(PI_VID, PI_E861_PID) },
 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 0838baf892f..f3c7c78ede3 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -785,6 +785,14 @@
 #define RTSYSTEMS_SERIAL_VX7_PID	0x9e52	/* Serial converter for VX-7 Radios using FT232RL */
 #define RTSYSTEMS_CT29B_PID		0x9e54	/* CT29B Radio Cable */
 
+
+/*
+ * Physik Instrumente
+ * http://www.physikinstrumente.com/en/products/
+ */
+#define PI_VID              0x1a72  /* Vendor ID */
+#define PI_E861_PID         0x1008  /* E-861 piezo controller USB connection */
+
 /*
  * Bayer Ascensia Contour blood glucose meter USB-converter cable.
  * http://winglucofacts.com/cables/