USB: serial: add driver for Suunto ANT+ USB device

This adds a driver for the Suunto ANT+ USB device, exposing it as a usb
serial device.  This lets the userspace "gant" program to talk to the
device to communicate over the ANT+ protocol to any devices it finds.

Reported-by: Steinar Gunderson <sgunderson@bigfoot.com>
Tested-by: Steinar Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/Kconfig

@@ -719,6 +719,13 @@ config USB_SERIAL_FLASHLOADER
 	  To compile this driver as a module, choose M here: the
 	  module will be called flashloader.
 
+config USB_SERIAL_SUUNTO
+	tristate "USB Suunto ANT+ driver"
+	help
+	  Say Y here if you want to use the Suunto ANT+ USB device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called suunto.
 
 config USB_SERIAL_DEBUG
 	tristate "USB Debugging Device"

drivers/usb/serial/Makefile

@@ -54,6 +54,7 @@ obj-$(CONFIG_USB_SERIAL_SIEMENS_MPI)		+= siemens_mpi.o
 obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS)		+= sierra.o
 obj-$(CONFIG_USB_SERIAL_SPCP8X5)		+= spcp8x5.o
 obj-$(CONFIG_USB_SERIAL_SSU100)			+= ssu100.o
+obj-$(CONFIG_USB_SERIAL_SUUNTO)			+= suunto.o
 obj-$(CONFIG_USB_SERIAL_SYMBOL)			+= symbolserial.o
 obj-$(CONFIG_USB_SERIAL_WWAN)			+= usb_wwan.o
 obj-$(CONFIG_USB_SERIAL_TI)			+= ti_usb_3410_5052.o

drivers/usb/serial/suunto.c

@@ -0,0 +1,41 @@
+/*
+ * Suunto ANT+ USB Driver
+ *
+ * Copyright (C) 2013 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ * Copyright (C) 2013 Linux Foundation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation only.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/uaccess.h>
+
+static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(0x0fcf, 0x1008) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_serial_driver suunto_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		KBUILD_MODNAME,
+	},
+	.id_table =		id_table,
+	.num_ports =		1,
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+	&suunto_device,
+	NULL,
+};
+
+module_usb_serial_driver(serial_drivers, id_table);
+MODULE_LICENSE("GPL");