can: kvaser_usb: Add support for Kvaser CAN/USB devices

This driver provides support for several Kvaser CAN/USB devices.
Such kind of devices supports up to three CAN network interfaces.

It has been tested with a Kvaser USB Leaf Light (one network interface)
connected to a pch_can interface.
The firmware version of the Kvaser device was 2.5.205.

List of Kvaser devices supported by the driver:
  - Kvaser Leaf Light
  - Kvaser Leaf Professional HS
  - Kvaser Leaf SemiPro HS
  - Kvaser Leaf Professional LS
  - Kvaser Leaf Professional SWC
  - Kvaser Leaf Professional LIN
  - Kvaser Leaf SemiPro LS
  - Kvaser Leaf SemiPro SWC
  - Kvaser Memorator II HS/HS
  - Kvaser USBcan Professional HS/HS
  - Kvaser Leaf Light GI
  - Kvaser Leaf Professional HS (OBD-II connector)
  - Kvaser Memorator Professional HS/LS
  - Kvaser Leaf Light "China"
  - Kvaser BlackBird SemiPro
  - Kvaser USBcan R

Signed-off-by: Daniel Berglund <db@kvaser.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
diff --git a/drivers/net/can/usb/Kconfig b/drivers/net/can/usb/Kconfig
index 0a68768..a4e4bee 100644
--- a/drivers/net/can/usb/Kconfig
+++ b/drivers/net/can/usb/Kconfig
@@ -13,6 +13,35 @@
           This driver supports the CAN-USB/2 interface
           from esd electronic system design gmbh (http://www.esd.eu).
 
+config CAN_KVASER_USB
+	tristate "Kvaser CAN/USB interface"
+	---help---
+	  This driver adds support for Kvaser CAN/USB devices like Kvaser
+	  Leaf Light.
+
+	  The driver gives support for the following devices:
+	    - Kvaser Leaf Light
+	    - Kvaser Leaf Professional HS
+	    - Kvaser Leaf SemiPro HS
+	    - Kvaser Leaf Professional LS
+	    - Kvaser Leaf Professional SWC
+	    - Kvaser Leaf Professional LIN
+	    - Kvaser Leaf SemiPro LS
+	    - Kvaser Leaf SemiPro SWC
+	    - Kvaser Memorator II HS/HS
+	    - Kvaser USBcan Professional HS/HS
+	    - Kvaser Leaf Light GI
+	    - Kvaser Leaf Professional HS (OBD-II connector)
+	    - Kvaser Memorator Professional HS/LS
+	    - Kvaser Leaf Light "China"
+	    - Kvaser BlackBird SemiPro
+	    - Kvaser USBcan R
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called kvaser_usb.
+
 config CAN_PEAK_USB
 	tristate "PEAK PCAN-USB/USB Pro interfaces"
 	---help---