diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 515cfe7..99aaf10 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -876,6 +876,16 @@ config TOUCHSCREEN_STMPE
 	  To compile this driver as a module, choose M here: the
 	  module will be called stmpe-ts.
 
+config TOUCHSCREEN_SUR40
+	tristate "Samsung SUR40 (Surface 2.0/PixelSense) touchscreen"
+	depends on USB
+	help
+	  Say Y here if you want support for the Samsung SUR40 touchscreen
+	  (also known as Microsoft Surface 2.0 or Microsoft PixelSense).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sur40.
+
 config TOUCHSCREEN_TPS6507X
 	tristate "TPS6507x based touchscreens"
 	depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 6bfbeab..b63a25d 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR)	+= pixcir_i2c_ts.o
 obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
+obj-$(CONFIG_TOUCHSCREEN_SUR40)		+= sur40.o
 obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC)	+= ti_am335x_tsc.o
 obj-$(CONFIG_TOUCHSCREEN_TNETV107X)	+= tnetv107x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
new file mode 100644
index 0000000..48787fd
--- /dev/null
+++ b/drivers/input/touchscreen/sur40.c
@@ -0,0 +1,467 @@
+/*
+	Surface2.0/SUR40/PixelSense input driver
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License as
+	published by the Free Software Foundation; either version 2 of
+	the License, or (at your option) any later version.
+
+	Copyright (c) 2013 by Florian 'floe' Echtler <floe@butterbrot.org>
+
+	Derived from the USB Skeleton driver 1.1,
+	Copyright (c) 2003 Greg Kroah-Hartman (greg@kroah.com)
+
+	and from the Apple USB BCM5974 multitouch driver,
+	Copyright (c) 2008 Henrik Rydberg (rydberg@euromail.se)
+
+	and from the generic hid-multitouch driver,
+	Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
+*/
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/printk.h>
+#include <linux/input-polldev.h>
+#include <linux/input/mt.h>
+#include <linux/usb/input.h>
+
+/* read 512 bytes from endpoint 0x86 -> get header + blobs */
+struct sur40_header {
+
+	__le16 type;       /* always 0x0001 */
+	__le16 count;      /* count of blobs (if 0: continue prev. packet) */
+
+	__le32 packet_id;  /* unique ID for all packets in one frame */
+
+	__le32 timestamp;  /* milliseconds (inc. by 16 or 17 each frame) */
+	__le32 unknown;    /* "epoch?" always 02/03 00 00 00 */
+
+} __packed;
+
+struct sur40_blob {
+
+	__le16 blob_id;
+
+	__u8 action;       /* 0x02 = enter/exit, 0x03 = update (?) */
+	__u8 unknown;      /* always 0x01 or 0x02 (no idea what this is?) */
+
+	__le16 bb_pos_x;   /* upper left corner of bounding box */
+	__le16 bb_pos_y;
+
+	__le16 bb_size_x;  /* size of bounding box */
+	__le16 bb_size_y;
+
+	__le16 pos_x;      /* finger tip position */
+	__le16 pos_y;
+
+	__le16 ctr_x;      /* centroid position */
+	__le16 ctr_y;
+
+	__le16 axis_x;     /* somehow related to major/minor axis, mostly: */
+	__le16 axis_y;     /* axis_x == bb_size_y && axis_y == bb_size_x */
+
+	__le32 angle;      /* orientation in radians relative to x axis -
+	                      actually an IEEE754 float, don't use in kernel */
+
+	__le32 area;       /* size in pixels/pressure (?) */
+
+	__u8 padding[32];
+
+} __packed;
+
+/* combined header/blob data */
+struct sur40_data {
+	struct sur40_header header;
+	struct sur40_blob   blobs[];
+} __packed;
+
+
+/* version information */
+#define DRIVER_SHORT   "sur40"
+#define DRIVER_AUTHOR  "Florian 'floe' Echtler <floe@butterbrot.org>"
+#define DRIVER_DESC    "Surface2.0/SUR40/PixelSense input driver"
+
+/* vendor and device IDs */
+#define ID_MICROSOFT 0x045e
+#define ID_SUR40     0x0775
+
+/* sensor resolution */
+#define SENSOR_RES_X 1920
+#define SENSOR_RES_Y 1080
+
+/* touch data endpoint */
+#define TOUCH_ENDPOINT 0x86
+
+/* polling interval (ms) */
+#define POLL_INTERVAL 10
+
+/* maximum number of contacts FIXME: this is a guess? */
+#define MAX_CONTACTS 64
+
+/* device ID table */
+static const struct usb_device_id sur40_table[] = {
+	{USB_DEVICE(ID_MICROSOFT, ID_SUR40)},  /* Samsung SUR40 */
+	{}                                     /* terminating null entry */
+};
+
+/* control commands */
+#define SUR40_GET_VERSION 0xb0 /* 12 bytes string    */
+#define SUR40_UNKNOWN1    0xb3 /*  5 bytes           */
+#define SUR40_UNKNOWN2    0xc1 /* 24 bytes           */
+
+#define SUR40_GET_STATE   0xc5 /*  4 bytes state (?) */
+#define SUR40_GET_SENSORS 0xb1 /*  8 bytes sensors   */
+
+/*
+ * Note: an earlier, non-public version of this driver used USB_RECIP_ENDPOINT
+ * here by mistake which is very likely to have corrupted the firmware EEPROM
+ * on two separate SUR40 devices. Thanks to Alan Stern who spotted this bug.
+ * Should you ever run into a similar problem, the background story to this
+ * incident and instructions on how to fix the corrupted EEPROM are available
+ * at https://floe.butterbrot.org/matrix/hacking/surface/brick.html
+*/
+#define sur40_command(dev, command, index, buffer, size) \
+	usb_control_msg(dev->usbdev, usb_rcvctrlpipe(dev->usbdev, 0), \
+	command, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, 0x00, \
+	index, buffer, size, 1000)
+
+MODULE_DEVICE_TABLE(usb, sur40_table);
+
+/* structure to hold all of our device specific stuff */
+struct sur40_state {
+
+	struct usb_device *usbdev;      /* save the usb device pointer */
+	struct device *dev;             /* save the generic device pointer */
+	struct input_polled_dev *input; /* struct for polled input device */
+
+	struct sur40_data *bulk_in_buffer; /* the buffer to receive data */
+	size_t bulk_in_size;            /* the maximum bulk packet size */
+	__u8 bulk_in_epaddr;            /* address of the bulk in endpoint */
+
+	char phys[64];                  /* buffer for phys name */
+};
+
+/* initialization routine, called from sur40_open */
+static int sur40_init(struct sur40_state *dev)
+{
+	int result;
+	__u8 buffer[24];
+
+	/* stupidly replay the original MS driver init sequence */
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x00, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x01, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x02, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_UNKNOWN2,    0x00, buffer, 24);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_UNKNOWN1,    0x00, buffer,  5);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x03, buffer, 12);
+
+	/* discard the result buffer - no known data inside except
+	   some version strings, maybe extract these sometime..    */
+
+	return result;
+}
+
+/*
+ * callback routines from input_polled_dev
+*/
+
+/* enable the device, polling will now start */
+void sur40_open(struct input_polled_dev *polldev)
+{
+	struct sur40_state *sur40 = polldev->private;
+	dev_dbg(sur40->dev, "open\n");
+	sur40_init(sur40);
+}
+
+/* disable device, polling has stopped */
+void sur40_close(struct input_polled_dev *polldev)
+{
+	/* no known way to stop the device, except to stop polling */
+	struct sur40_state *sur40 = polldev->private;
+	dev_dbg(sur40->dev, "close\n");
+}
+
+/*
+ * this function is called when a whole contact has been processed,
+ * so that it can assign it to a slot and store the data there
+ */
+static void report_blob(struct sur40_blob *blob, struct input_dev *input)
+{
+	int wide, major, minor;
+
+	int bb_size_x = le16_to_cpu(blob->bb_size_x);
+	int bb_size_y = le16_to_cpu(blob->bb_size_y);
+
+	int pos_x = le16_to_cpu(blob->pos_x);
+	int pos_y = le16_to_cpu(blob->pos_y);
+
+	int ctr_x = le16_to_cpu(blob->ctr_x);
+	int ctr_y = le16_to_cpu(blob->ctr_y);
+
+	int slotnum = input_mt_get_slot_by_key(input, blob->blob_id);
+	if (slotnum < 0 || slotnum >= MAX_CONTACTS)
+		return;
+
+	input_mt_slot(input, slotnum);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, 1);
+	wide = (bb_size_x > bb_size_y);
+	major = max(bb_size_x, bb_size_y);
+	minor = min(bb_size_x, bb_size_y);
+
+	input_event(input, EV_ABS, ABS_MT_POSITION_X, pos_x);
+	input_event(input, EV_ABS, ABS_MT_POSITION_Y, pos_y);
+	input_event(input, EV_ABS, ABS_MT_TOOL_X, ctr_x);
+	input_event(input, EV_ABS, ABS_MT_TOOL_Y, ctr_y);
+
+	/* TODO: use a better orientation measure */
+	input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
+	input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
+	input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
+}
+
+/* core function: poll for new input data */
+void sur40_poll(struct input_polled_dev *polldev)
+{
+
+	struct sur40_state *sur40 = polldev->private;
+	struct input_dev *input = polldev->input;
+	int result, bulk_read, need_blobs, packet_blobs, i;
+	uint32_t packet_id;
+
+	struct sur40_header *header = &sur40->bulk_in_buffer->header;
+	struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0];
+
+	need_blobs = -1;
+
+	dev_dbg(sur40->dev, "poll\n");
+
+	do {
+
+		/* perform a blocking bulk read to get data from the device */
+		result = usb_bulk_msg(sur40->usbdev,
+			usb_rcvbulkpipe(sur40->usbdev, sur40->bulk_in_epaddr),
+			sur40->bulk_in_buffer, sur40->bulk_in_size,
+			&bulk_read, 1000);
+
+		dev_dbg(sur40->dev, "received %d bytes\n", bulk_read);
+
+		if (result < 0) {
+			dev_err(sur40->dev, "error in usb_bulk_read\n");
+			return;
+		}
+
+		result = bulk_read - sizeof(struct sur40_header);
+
+		if (result % sizeof(struct sur40_blob) != 0) {
+			dev_err(sur40->dev, "transfer size mismatch\n");
+			return;
+		}
+
+		/* first packet? */
+		if (need_blobs == -1) {
+			need_blobs = le16_to_cpu(header->count);
+			dev_dbg(sur40->dev, "need %d blobs\n", need_blobs);
+			packet_id = header->packet_id;
+		}
+
+		/* sanity check. when video data is also being retrieved, the
+		 * packet ID will usually increase in the middle of a series
+		 * instead of at the end. */
+		if (packet_id != header->packet_id)
+			dev_warn(sur40->dev, "packet ID mismatch\n");
+
+		packet_blobs = result / sizeof(struct sur40_blob);
+		dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs);
+
+		/* packets always contain at least 4 blobs, even if empty */
+		if (packet_blobs > need_blobs)
+			packet_blobs = need_blobs;
+
+		for (i = 0; i < packet_blobs; i++) {
+			need_blobs--;
+			dev_dbg(sur40->dev, "processing blob\n");
+			report_blob(&(inblob[i]), input);
+		}
+
+	} while (need_blobs > 0);
+
+	input_mt_sync_frame(input);
+	input_sync(input);
+}
+
+/*
+ * housekeeping routines
+*/
+
+/* initialize input device parameters */
+static void sur40_input_setup(struct input_dev *input_dev)
+{
+	set_bit(EV_KEY, input_dev->evbit);
+	set_bit(EV_SYN, input_dev->evbit);
+	set_bit(EV_ABS, input_dev->evbit);
+
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+		0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+		0, SENSOR_RES_Y, 0, 0);
+
+	input_set_abs_params(input_dev, ABS_MT_TOOL_X,
+		0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOOL_Y,
+		0, SENSOR_RES_Y, 0, 0);
+
+	/* max value unknown, but major/minor axis
+	 * can never be larger than screen */
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+		0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR,
+		0, SENSOR_RES_Y, 0, 0);
+
+	input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+
+	input_mt_init_slots(input_dev, MAX_CONTACTS,
+		INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+}
+
+/* clean up all allocated buffers/structs */
+static inline void sur40_delete(struct sur40_state *sur40)
+{
+	input_free_polled_device(sur40->input);
+	kfree(sur40->bulk_in_buffer);
+	kfree(sur40);
+}
+
+/* check candidate USB interface */
+static int sur40_probe(struct usb_interface *interface,
+	const struct usb_device_id *id)
+{
+	struct usb_device *usbdev = interface_to_usbdev(interface);
+	struct sur40_state *sur40;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct input_polled_dev *poll_dev;
+	int result;
+
+	/* check if we really have the right interface */
+	iface_desc = &interface->altsetting[0];
+	if (iface_desc->desc.bInterfaceClass != 0xFF)
+		return -ENODEV;
+
+	/* use endpoint #4 (0x86) */
+	endpoint = &iface_desc->endpoint[4].desc;
+	if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)
+		return -ENODEV;
+
+	/* allocate memory for our device state and initialize it */
+	sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL);
+	if (!sur40)
+		return -ENOMEM;
+
+	poll_dev = input_allocate_polled_device();
+	if (!poll_dev) {
+		result = -ENOMEM;
+		goto err_free_dev;
+	}
+
+	/* setup polled input device control struct */
+	poll_dev->private = sur40;
+	poll_dev->poll_interval = POLL_INTERVAL;
+	poll_dev->open = sur40_open;
+	poll_dev->poll = sur40_poll;
+	poll_dev->close = sur40_close;
+
+	/* setup regular input device struct */
+	sur40_input_setup(poll_dev->input);
+
+	poll_dev->input->name = "Samsung SUR40";
+	usb_to_input_id(usbdev, &(poll_dev->input->id));
+	usb_make_path(usbdev, sur40->phys, sizeof(sur40->phys));
+	strlcat(sur40->phys, "/input0", sizeof(sur40->phys));
+	poll_dev->input->phys = sur40->phys;
+
+	sur40->usbdev = usbdev;
+	sur40->dev = &usbdev->dev;
+	sur40->input = poll_dev;
+
+	/* use the bulk-in endpoint tested above */
+	sur40->bulk_in_size = usb_endpoint_maxp(endpoint);
+	sur40->bulk_in_epaddr = endpoint->bEndpointAddress;
+	sur40->bulk_in_buffer = kmalloc(sur40->bulk_in_size, GFP_KERNEL);
+	if (!sur40->bulk_in_buffer) {
+		dev_err(&interface->dev, "Unable to allocate input buffer.");
+		result = -ENOMEM;
+		goto err_free_polldev;
+	}
+
+	result = input_register_polled_device(poll_dev);
+	if (result) {
+		dev_err(&interface->dev,
+			"Unable to register polled input device.");
+		goto err_free_buffer;
+	}
+
+	/* we can register the device now, as it is ready */
+	usb_set_intfdata(interface, sur40);
+	dev_dbg(&interface->dev, "%s now attached\n", DRIVER_DESC);
+
+	return 0;
+
+err_free_buffer:
+	kfree(sur40->bulk_in_buffer);
+err_free_polldev:
+	input_free_polled_device(sur40->input);
+err_free_dev:
+	kfree(sur40);
+
+	return result;
+}
+
+/* unregister device & clean up */
+static void sur40_disconnect(struct usb_interface *interface)
+{
+	struct sur40_state *sur40 = usb_get_intfdata(interface);
+
+	input_unregister_polled_device(sur40->input);
+
+	usb_set_intfdata(interface, NULL);
+
+	sur40_delete(sur40);
+
+	dev_dbg(&interface->dev, "%s now disconnected\n", DRIVER_DESC);
+}
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver sur40_driver = {
+	.name = DRIVER_SHORT,
+	.probe = sur40_probe,
+	.disconnect = sur40_disconnect,
+	.id_table = sur40_table,
+};
+
+module_usb_driver(sur40_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
