Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/kernel/drivers/usb/serial/xsens_mt.c b/kernel/drivers/usb/serial/xsens_mt.c
new file mode 100644
index 000000000..3837d5113
--- /dev/null
+++ b/kernel/drivers/usb/serial/xsens_mt.c
@@ -0,0 +1,72 @@
+/*
+ * Xsens MT USB driver
+ *
+ * Copyright (C) 2013 Xsens <info@xsens.com>
+ *
+ *  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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <linux/uaccess.h>
+
+#define XSENS_VID 0x2639
+
+#define MTi_10_IMU_PID		0x0001
+#define MTi_20_VRU_PID		0x0002
+#define MTi_30_AHRS_PID		0x0003
+
+#define MTi_100_IMU_PID		0x0011
+#define MTi_200_VRU_PID		0x0012
+#define MTi_300_AHRS_PID	0x0013
+
+#define MTi_G_700_GPS_INS_PID	0x0017
+
+static const struct usb_device_id id_table[] = {
+	{ USB_DEVICE(XSENS_VID, MTi_10_IMU_PID) },
+	{ USB_DEVICE(XSENS_VID, MTi_20_VRU_PID) },
+	{ USB_DEVICE(XSENS_VID, MTi_30_AHRS_PID) },
+
+	{ USB_DEVICE(XSENS_VID, MTi_100_IMU_PID) },
+	{ USB_DEVICE(XSENS_VID, MTi_200_VRU_PID) },
+	{ USB_DEVICE(XSENS_VID, MTi_300_AHRS_PID) },
+
+	{ USB_DEVICE(XSENS_VID, MTi_G_700_GPS_INS_PID) },
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static int xsens_mt_probe(struct usb_serial *serial,
+					const struct usb_device_id *id)
+{
+	if (serial->interface->cur_altsetting->desc.bInterfaceNumber == 1)
+		return 0;
+
+	return -ENODEV;
+}
+
+static struct usb_serial_driver xsens_mt_device = {
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "xsens_mt",
+	},
+	.id_table = id_table,
+	.num_ports = 1,
+
+	.probe = xsens_mt_probe,
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+	&xsens_mt_device, NULL
+};
+
+module_usb_serial_driver(serial_drivers, id_table);
+
+MODULE_AUTHOR("Frans Klaver <frans.klaver@xsens.com>");
+MODULE_DESCRIPTION("USB-serial driver for Xsens motion trackers");
+MODULE_LICENSE("GPL");