diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
new file mode 100644
index 0000000..2a60992
--- /dev/null
+++ b/drivers/usb/serial/oti6858.c
@@ -0,0 +1,1341 @@
+/*
+ * Ours Technology Inc. OTi-6858 USB to serial adapter driver.
+ *
+ * Copyleft  (C) 2007 Kees Lemmens (adapted for kernel 2.6.20)
+ * Copyright (C) 2006 Tomasz Michal Lukaszewski (FIXME: add e-mail)
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2003 IBM Corp.
+ *
+ * Many thanks to the authors of pl2303 driver: all functions in this file
+ * are heavily based on pl2303 code, buffering code is a 1-to-1 copy.
+ *
+ * Warning! You use this driver on your own risk! The only official
+ * description of this device I have is datasheet from manufacturer,
+ * and it doesn't contain almost any information needed to write a driver.
+ * Almost all knowlegde used while writing this driver was gathered by:
+ *  - analyzing traffic between device and the M$ Windows 2000 driver,
+ *  - trying different bit combinations and checking pin states
+ *    with a voltmeter,
+ *  - receiving malformed frames and producing buffer overflows
+ *    to learn how errors are reported,
+ * So, THIS CODE CAN DESTROY OTi-6858 AND ANY OTHER DEVICES, THAT ARE
+ * CONNECTED TO IT!
+ *
+ * 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.
+ *
+ * See Documentation/usb/usb-serial.txt for more information on using this driver
+ *
+ * TODO:
+ *  - implement correct flushing for ioctls and oti6858_close()
+ *  - check how errors (rx overflow, parity error, framing error) are reported
+ *  - implement oti6858_break_ctl()
+ *  - implement more ioctls
+ *  - test/implement flow control
+ *  - allow setting custom baud rates
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+#include <asm/uaccess.h>
+#include "oti6858.h"
+
+#define OTI6858_DESCRIPTION \
+	"Ours Technology Inc. OTi-6858 USB to serial adapter driver"
+#define OTI6858_AUTHOR "Tomasz Michal Lukaszewski <FIXME@FIXME>"
+#define OTI6858_VERSION "0.1"
+
+static struct usb_device_id id_table [] = {
+	{ USB_DEVICE(OTI6858_VENDOR_ID, OTI6858_PRODUCT_ID) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver oti6858_driver = {
+	.name =		"oti6858",
+	.probe =	usb_serial_probe,
+	.disconnect =	usb_serial_disconnect,
+	.id_table =	id_table,
+	.no_dynamic_id = 	1,
+};
+
+static int debug;
+
+
+/* buffering code, copied from pl2303 driver */
+#define PL2303_BUF_SIZE		1024
+#define PL2303_TMP_BUF_SIZE	1024
+
+struct pl2303_buf {
+	unsigned int	buf_size;
+	char		*buf_buf;
+	char		*buf_get;
+	char		*buf_put;
+};
+
+/* requests */
+#define	OTI6858_REQ_GET_STATUS		(USB_DIR_IN | USB_TYPE_VENDOR | 0x00)
+#define	OTI6858_REQ_T_GET_STATUS	0x01
+
+#define	OTI6858_REQ_SET_LINE		(USB_DIR_OUT | USB_TYPE_VENDOR | 0x00)
+#define	OTI6858_REQ_T_SET_LINE		0x00
+
+#define	OTI6858_REQ_CHECK_TXBUFF	(USB_DIR_IN | USB_TYPE_VENDOR | 0x01)
+#define	OTI6858_REQ_T_CHECK_TXBUFF	0x00
+
+/* format of the control packet */
+struct oti6858_control_pkt {
+	u16	divisor;	/* baud rate = 96000000 / (16 * divisor), LE */
+#define OTI6858_MAX_BAUD_RATE	3000000
+	u8	frame_fmt;
+#define FMT_STOP_BITS_MASK	0xc0
+#define FMT_STOP_BITS_1		0x00
+#define FMT_STOP_BITS_2		0x40	/* 1.5 stop bits if FMT_DATA_BITS_5 */
+#define FMT_PARITY_MASK		0x38
+#define FMT_PARITY_NONE		0x00
+#define FMT_PARITY_ODD		0x08
+#define FMT_PARITY_EVEN		0x18
+#define FMT_PARITY_MARK		0x28
+#define FMT_PARITY_SPACE	0x38
+#define FMT_DATA_BITS_MASK	0x03
+#define FMT_DATA_BITS_5		0x00
+#define FMT_DATA_BITS_6		0x01
+#define FMT_DATA_BITS_7		0x02
+#define FMT_DATA_BITS_8		0x03
+	u8	something;	/* always equals 0x43 */
+	u8	control;	/* settings of flow control lines */
+#define CONTROL_MASK		0x0c
+#define CONTROL_DTR_HIGH	0x08
+#define CONTROL_RTS_HIGH	0x04
+	u8	tx_status;
+#define	TX_BUFFER_EMPTIED	0x09
+	u8	pin_state;
+#define PIN_MASK		0x3f
+#define PIN_RTS			0x20	/* output pin */
+#define PIN_CTS			0x10	/* input pin, active low */
+#define PIN_DSR			0x08	/* input pin, active low */
+#define PIN_DTR			0x04	/* output pin */
+#define PIN_RI			0x02	/* input pin, active low */
+#define PIN_DCD			0x01	/* input pin, active low */
+	u8	rx_bytes_avail;		/* number of bytes in rx buffer */;
+};
+
+#define OTI6858_CTRL_PKT_SIZE	sizeof(struct oti6858_control_pkt)
+#define OTI6858_CTRL_EQUALS_PENDING(a, priv) \
+	(    ((a)->divisor == (priv)->pending_setup.divisor) \
+	  && ((a)->control == (priv)->pending_setup.control) \
+	  && ((a)->frame_fmt == (priv)->pending_setup.frame_fmt) )
+
+/* function prototypes */
+static int oti6858_open(struct usb_serial_port *port, struct file *filp);
+static void oti6858_close(struct usb_serial_port *port, struct file *filp);
+static void oti6858_set_termios(struct usb_serial_port *port,
+				struct ktermios *old);
+static int oti6858_ioctl(struct usb_serial_port *port, struct file *file,
+			unsigned int cmd, unsigned long arg);
+static void oti6858_read_int_callback(struct urb *urb);
+static void oti6858_read_bulk_callback(struct urb *urb);
+static void oti6858_write_bulk_callback(struct urb *urb);
+static int oti6858_write(struct usb_serial_port *port,
+			const unsigned char *buf, int count);
+static int oti6858_write_room(struct usb_serial_port *port);
+static void oti6858_break_ctl(struct usb_serial_port *port, int break_state);
+static int oti6858_chars_in_buffer(struct usb_serial_port *port);
+static int oti6858_tiocmget(struct usb_serial_port *port, struct file *file);
+static int oti6858_tiocmset(struct usb_serial_port *port, struct file *file,
+				unsigned int set, unsigned int clear);
+static int oti6858_startup(struct usb_serial *serial);
+static void oti6858_shutdown(struct usb_serial *serial);
+
+/* functions operating on buffers */
+static struct pl2303_buf *pl2303_buf_alloc(unsigned int size);
+static void pl2303_buf_free(struct pl2303_buf *pb);
+static void pl2303_buf_clear(struct pl2303_buf *pb);
+static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb);
+static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb);
+static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf,
+					unsigned int count);
+static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf,
+					unsigned int count);
+
+
+/* device info */
+static struct usb_serial_driver oti6858_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"oti6858",
+	},
+	.id_table =		id_table,
+	.num_interrupt_in =	1,
+	.num_bulk_in =		1,
+	.num_bulk_out =		1,
+	.num_ports =		1,
+	.open =			oti6858_open,
+	.close =		oti6858_close,
+	.write =		oti6858_write,
+	.ioctl =		oti6858_ioctl,
+	.break_ctl =		oti6858_break_ctl,
+	.set_termios =		oti6858_set_termios,
+	.tiocmget =		oti6858_tiocmget,
+	.tiocmset =		oti6858_tiocmset,
+	.read_bulk_callback =	oti6858_read_bulk_callback,
+	.read_int_callback =	oti6858_read_int_callback,
+	.write_bulk_callback =	oti6858_write_bulk_callback,
+	.write_room =		oti6858_write_room,
+	.chars_in_buffer =	oti6858_chars_in_buffer,
+	.attach =		oti6858_startup,
+	.shutdown =		oti6858_shutdown,
+};
+
+struct oti6858_private {
+	spinlock_t lock;
+
+	struct pl2303_buf *buf;
+	struct oti6858_control_pkt status;
+
+	struct {
+		u8 read_urb_in_use;
+		u8 write_urb_in_use;
+		u8 termios_initialized;
+	} flags;
+	struct delayed_work delayed_write_work;
+
+	struct {
+		u16 divisor;
+		u8 frame_fmt;
+		u8 control;
+	} pending_setup;
+	u8 transient;
+	u8 setup_done;
+	struct delayed_work delayed_setup_work;
+
+	wait_queue_head_t intr_wait;
+        struct usb_serial_port *port;   /* USB port with which associated */
+};
+
+#undef dbg
+/* #define dbg(format, arg...) printk(KERN_INFO "%s: " format "\n", __FILE__, ## arg) */
+#define dbg(format, arg...) printk(KERN_INFO "" format "\n", ## arg)
+
+static void setup_line(struct work_struct *work)
+{
+	struct oti6858_private *priv = container_of(work, struct oti6858_private, delayed_setup_work.work);
+	struct usb_serial_port *port = priv->port;
+	struct oti6858_control_pkt *new_setup;
+	unsigned long flags;
+	int result;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	if ((new_setup = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL)) == NULL) {
+		dev_err(&port->dev, "%s(): out of memory!\n", __FUNCTION__);
+		/* we will try again */
+		schedule_delayed_work(&priv->delayed_setup_work, msecs_to_jiffies(2));
+		return;
+	}
+
+	result = usb_control_msg(port->serial->dev,
+				usb_rcvctrlpipe(port->serial->dev, 0),
+				OTI6858_REQ_T_GET_STATUS,
+				OTI6858_REQ_GET_STATUS,
+				0, 0,
+				new_setup, OTI6858_CTRL_PKT_SIZE,
+				100);
+
+	if (result != OTI6858_CTRL_PKT_SIZE) {
+		dev_err(&port->dev, "%s(): error reading status", __FUNCTION__);
+		kfree(new_setup);
+		/* we will try again */
+		schedule_delayed_work(&priv->delayed_setup_work, msecs_to_jiffies(2));
+		return;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!OTI6858_CTRL_EQUALS_PENDING(new_setup, priv)) {
+		new_setup->divisor = priv->pending_setup.divisor;
+		new_setup->control = priv->pending_setup.control;
+		new_setup->frame_fmt = priv->pending_setup.frame_fmt;
+
+		spin_unlock_irqrestore(&priv->lock, flags);
+		result = usb_control_msg(port->serial->dev,
+					usb_sndctrlpipe(port->serial->dev, 0),
+					OTI6858_REQ_T_SET_LINE,
+					OTI6858_REQ_SET_LINE,
+					0, 0,
+					new_setup, OTI6858_CTRL_PKT_SIZE,
+					100);
+	} else {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		result = 0;
+	}
+	kfree(new_setup);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (result != OTI6858_CTRL_PKT_SIZE)
+		priv->transient = 0;
+	priv->setup_done = 1;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	dbg("%s(): submitting interrupt urb", __FUNCTION__);
+	port->interrupt_in_urb->dev = port->serial->dev;
+	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+	if (result != 0) {
+		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
+				" with error %d\n", __FUNCTION__, result);
+	}
+}
+
+void send_data(struct work_struct *work)
+{
+	struct oti6858_private *priv = container_of(work, struct oti6858_private, delayed_write_work.work);
+	struct usb_serial_port *port = priv->port;
+	int count = 0, result;
+	unsigned long flags;
+	unsigned char allow;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (priv->flags.write_urb_in_use) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		schedule_delayed_work(&priv->delayed_write_work, msecs_to_jiffies(2));
+		return;
+	}
+	priv->flags.write_urb_in_use = 1;
+
+	count = pl2303_buf_data_avail(priv->buf);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	if (count > port->bulk_out_size)
+		count = port->bulk_out_size;
+
+	if (count != 0) {
+		result = usb_control_msg(port->serial->dev,
+				usb_rcvctrlpipe(port->serial->dev, 0),
+				OTI6858_REQ_T_CHECK_TXBUFF,
+				OTI6858_REQ_CHECK_TXBUFF,
+				count, 0, &allow, 1, 100);
+		if (result != 1 || allow != 0)
+			count = 0;
+	}
+
+	if (count == 0) {
+		priv->flags.write_urb_in_use = 0;
+
+		dbg("%s(): submitting interrupt urb", __FUNCTION__);
+		port->interrupt_in_urb->dev = port->serial->dev;
+		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+		if (result != 0) {
+			dev_err(&port->dev, "%s(): usb_submit_urb() failed"
+				" with error %d\n", __FUNCTION__, result);
+		}
+		return;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	pl2303_buf_get(priv->buf, port->write_urb->transfer_buffer, count);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	port->write_urb->transfer_buffer_length = count;
+	port->write_urb->dev = port->serial->dev;
+	result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+	if (result != 0) {
+		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
+			       " with error %d\n", __FUNCTION__, result);
+		priv->flags.write_urb_in_use = 0;
+	}
+
+	usb_serial_port_softint(port);
+}
+
+static int oti6858_startup(struct usb_serial *serial)
+{
+        struct usb_serial_port *port = serial->port[0];
+        struct oti6858_private *priv;
+	int i;
+
+	for (i = 0; i < serial->num_ports; ++i) {
+		priv = kzalloc(sizeof(struct oti6858_private), GFP_KERNEL);
+		if (!priv)
+			break;
+		priv->buf = pl2303_buf_alloc(PL2303_BUF_SIZE);
+		if (priv->buf == NULL) {
+			kfree(priv);
+			break;
+		}
+
+		spin_lock_init(&priv->lock);
+		init_waitqueue_head(&priv->intr_wait);
+//		INIT_WORK(&priv->setup_work, setup_line, serial->port[i]);
+//		INIT_WORK(&priv->write_work, send_data, serial->port[i]);
+		priv->port = port;
+		INIT_DELAYED_WORK(&priv->delayed_setup_work, setup_line);
+		INIT_DELAYED_WORK(&priv->delayed_write_work, send_data);
+
+		usb_set_serial_port_data(serial->port[i], priv);
+	}
+	if (i == serial->num_ports)
+		return 0;
+
+	for (--i; i >= 0; --i) {
+		priv = usb_get_serial_port_data(serial->port[i]);
+		pl2303_buf_free(priv->buf);
+		kfree(priv);
+		usb_set_serial_port_data(serial->port[i], NULL);
+	}
+	return -ENOMEM;
+}
+
+static int oti6858_write(struct usb_serial_port *port,
+			const unsigned char *buf, int count)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+
+	dbg("%s(port = %d, count = %d)", __FUNCTION__, port->number, count);
+
+	if (!count)
+		return count;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	count = pl2303_buf_put(priv->buf, buf, count);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return count;
+}
+
+static int oti6858_write_room(struct usb_serial_port *port)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	int room = 0;
+	unsigned long flags;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	room = pl2303_buf_space_avail(priv->buf);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return room;
+}
+
+static int oti6858_chars_in_buffer(struct usb_serial_port *port)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	int chars = 0;
+	unsigned long flags;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	chars = pl2303_buf_data_avail(priv->buf);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return chars;
+}
+
+static void oti6858_set_termios(struct usb_serial_port *port,
+				struct ktermios *old_termios)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	unsigned int cflag;
+	u8 frame_fmt, control;
+	u16 divisor;
+	int br;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	if ((!port->tty) || (!port->tty->termios)) {
+		dbg("%s(): no tty structures", __FUNCTION__);
+		return;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!priv->flags.termios_initialized) {
+		*(port->tty->termios) = tty_std_termios;
+		port->tty->termios->c_cflag = B38400 | CS8 | CREAD | HUPCL | CLOCAL;
+		priv->flags.termios_initialized = 1;
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	cflag = port->tty->termios->c_cflag;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	divisor = priv->pending_setup.divisor;
+	frame_fmt = priv->pending_setup.frame_fmt;
+	control = priv->pending_setup.control;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	frame_fmt &= ~FMT_DATA_BITS_MASK;
+	switch (cflag & CSIZE) {
+		case CS5:
+			frame_fmt |= FMT_DATA_BITS_5;
+			break;
+		case CS6:
+			frame_fmt |= FMT_DATA_BITS_6;
+			break;
+		case CS7:
+			frame_fmt |= FMT_DATA_BITS_7;
+			break;
+		default:
+		case CS8:
+			frame_fmt |= FMT_DATA_BITS_8;
+			break;
+	}
+
+	/* manufacturer claims that this device can work with baud rates
+	 * up to 3 Mbps; I've tested it only on 115200 bps, so I can't
+	 * guarantee that any other baud rate will work (especially
+	 * the higher ones)
+	 */
+	br = tty_get_baud_rate(port->tty);
+	if (br == 0) {
+		divisor = 0;
+	} else if (br <= OTI6858_MAX_BAUD_RATE) {
+		int real_br;
+
+		divisor = (96000000 + 8 * br) / (16 * br);
+		real_br = 96000000 / (16 * divisor);
+		if ((((real_br - br) * 100 + br - 1) / br) > 2) {
+			dbg("%s(): baud rate %d is invalid", __FUNCTION__, br);
+			return;
+		}
+		divisor = cpu_to_le16(divisor);
+	} else {
+		dbg("%s(): baud rate %d is too high", __FUNCTION__, br);
+		return;
+	}
+
+	frame_fmt &= ~FMT_STOP_BITS_MASK;
+	if ((cflag & CSTOPB) != 0) {
+		frame_fmt |= FMT_STOP_BITS_2;
+	} else {
+		frame_fmt |= FMT_STOP_BITS_1;
+	}
+
+	frame_fmt &= ~FMT_PARITY_MASK;
+	if ((cflag & PARENB) != 0) {
+		if ((cflag & PARODD) != 0) {
+			frame_fmt |= FMT_PARITY_ODD;
+		} else {
+			frame_fmt |= FMT_PARITY_EVEN;
+		}
+	} else {
+		frame_fmt |= FMT_PARITY_NONE;
+	}
+
+	control &= ~CONTROL_MASK;
+	if ((cflag & CRTSCTS) != 0)
+		control |= (CONTROL_DTR_HIGH | CONTROL_RTS_HIGH);
+
+	/* change control lines if we are switching to or from B0 */
+	/* FIXME:
+	spin_lock_irqsave(&priv->lock, flags);
+	control = priv->line_control;
+	if ((cflag & CBAUD) == B0)
+		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
+	else
+		priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
+	if (control != priv->line_control) {
+		control = priv->line_control;
+		spin_unlock_irqrestore(&priv->lock, flags);
+		set_control_lines(serial->dev, control);
+	} else {
+		spin_unlock_irqrestore(&priv->lock, flags);
+	}
+	*/
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (divisor != priv->pending_setup.divisor
+			|| control != priv->pending_setup.control
+			|| frame_fmt != priv->pending_setup.frame_fmt) {
+		priv->pending_setup.divisor = divisor;
+		priv->pending_setup.control = control;
+		priv->pending_setup.frame_fmt = frame_fmt;
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int oti6858_open(struct usb_serial_port *port, struct file *filp)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	struct ktermios tmp_termios;
+	struct usb_serial *serial = port->serial;
+	struct oti6858_control_pkt *buf;
+	unsigned long flags;
+	int result;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	usb_clear_halt(serial->dev, port->write_urb->pipe);
+	usb_clear_halt(serial->dev, port->read_urb->pipe);
+
+	if (port->open_count != 1)
+		return 0;
+
+	if ((buf = kmalloc(OTI6858_CTRL_PKT_SIZE, GFP_KERNEL)) == NULL) {
+		dev_err(&port->dev, "%s(): out of memory!\n", __FUNCTION__);
+		return -ENOMEM;
+	}
+
+	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+				OTI6858_REQ_T_GET_STATUS,
+				OTI6858_REQ_GET_STATUS,
+				0, 0,
+				buf, OTI6858_CTRL_PKT_SIZE,
+				100);
+	if (result != OTI6858_CTRL_PKT_SIZE) {
+		/* assume default (after power-on reset) values */
+		buf->divisor = cpu_to_le16(0x009c);	/* 38400 bps */
+		buf->frame_fmt = 0x03;	/* 8N1 */
+		buf->something = 0x43;
+		buf->control = 0x4c;	/* DTR, RTS */
+		buf->tx_status = 0x00;
+		buf->pin_state = 0x5b;	/* RTS, CTS, DSR, DTR, RI, DCD */
+		buf->rx_bytes_avail = 0x00;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	memcpy(&priv->status, buf, OTI6858_CTRL_PKT_SIZE);
+	priv->pending_setup.divisor = buf->divisor;
+	priv->pending_setup.frame_fmt = buf->frame_fmt;
+	priv->pending_setup.control = buf->control;
+	spin_unlock_irqrestore(&priv->lock, flags);
+	kfree(buf);
+
+	dbg("%s(): submitting interrupt urb", __FUNCTION__);
+	port->interrupt_in_urb->dev = serial->dev;
+	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+	if (result != 0) {
+		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
+			       " with error %d\n", __FUNCTION__, result);
+		oti6858_close(port, NULL);
+		return -EPROTO;
+	}
+
+	/* setup termios */
+	if (port->tty)
+		oti6858_set_termios(port, &tmp_termios);
+
+	return 0;
+}
+
+static void oti6858_close(struct usb_serial_port *port, struct file *filp)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	long timeout;
+	wait_queue_t wait;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	/* wait for data to drain from the buffer */
+	spin_lock_irqsave(&priv->lock, flags);
+	timeout = 30 * HZ;	/* PL2303_CLOSING_WAIT */
+	init_waitqueue_entry(&wait, current);
+	add_wait_queue(&port->tty->write_wait, &wait);
+	dbg("%s(): entering wait loop", __FUNCTION__);
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (pl2303_buf_data_avail(priv->buf) == 0
+		|| timeout == 0 || signal_pending(current)
+		|| !usb_get_intfdata(port->serial->interface))	/* disconnect */
+			break;
+		spin_unlock_irqrestore(&priv->lock, flags);
+		timeout = schedule_timeout(timeout);
+		spin_lock_irqsave(&priv->lock, flags);
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&port->tty->write_wait, &wait);
+	dbg("%s(): after wait loop", __FUNCTION__);
+
+	/* clear out any remaining data in the buffer */
+	pl2303_buf_clear(priv->buf);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* wait for characters to drain from the device */
+	/* (this is long enough for the entire 256 byte */
+	/* pl2303 hardware buffer to drain with no flow */
+	/* control for data rates of 1200 bps or more, */
+	/* for lower rates we should really know how much */
+	/* data is in the buffer to compute a delay */
+	/* that is not unnecessarily long) */
+	/* FIXME
+	bps = tty_get_baud_rate(port->tty);
+	if (bps > 1200)
+		timeout = max((HZ*2560)/bps,HZ/10);
+	else
+	*/
+		timeout = 2*HZ;
+	schedule_timeout_interruptible(timeout);
+	dbg("%s(): after schedule_timeout_interruptible()", __FUNCTION__);
+
+	/* cancel scheduled setup */
+	cancel_delayed_work(&priv->delayed_setup_work);
+	cancel_delayed_work(&priv->delayed_write_work);
+	flush_scheduled_work();
+
+	/* shutdown our urbs */
+	dbg("%s(): shutting down urbs", __FUNCTION__);
+	usb_kill_urb(port->write_urb);
+	usb_kill_urb(port->read_urb);
+	usb_kill_urb(port->interrupt_in_urb);
+
+	/*
+	if (port->tty && (port->tty->termios->c_cflag) & HUPCL) {
+		// drop DTR and RTS
+		spin_lock_irqsave(&priv->lock, flags);
+		priv->pending_setup.control &= ~CONTROL_MASK;
+		spin_unlock_irqrestore(&priv->lock, flags);
+	}
+	*/
+}
+
+static int oti6858_tiocmset(struct usb_serial_port *port, struct file *file,
+				unsigned int set, unsigned int clear)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	u8 control;
+
+	dbg("%s(port = %d, set = 0x%08x, clear = 0x%08x)",
+				__FUNCTION__, port->number, set, clear);
+
+	if (!usb_get_intfdata(port->serial->interface))
+		return -ENODEV;
+
+	/* FIXME: check if this is correct (active high/low) */
+	spin_lock_irqsave(&priv->lock, flags);
+	control = priv->pending_setup.control;
+	if ((set & TIOCM_RTS) != 0)
+		control |= CONTROL_RTS_HIGH;
+	if ((set & TIOCM_DTR) != 0)
+		control |= CONTROL_DTR_HIGH;
+	if ((clear & TIOCM_RTS) != 0)
+		control &= ~CONTROL_RTS_HIGH;
+	if ((clear & TIOCM_DTR) != 0)
+		control &= ~CONTROL_DTR_HIGH;
+
+	if (control != priv->pending_setup.control) {
+		priv->pending_setup.control = control;
+	}
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return 0;
+}
+
+static int oti6858_tiocmget(struct usb_serial_port *port, struct file *file)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	unsigned pin_state;
+	unsigned result = 0;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	if (!usb_get_intfdata(port->serial->interface))
+		return -ENODEV;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	pin_state = priv->status.pin_state & PIN_MASK;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* FIXME: check if this is correct (active high/low) */
+	if ((pin_state & PIN_RTS) != 0)
+		result |= TIOCM_RTS;
+	if ((pin_state & PIN_CTS) != 0)
+		result |= TIOCM_CTS;
+	if ((pin_state & PIN_DSR) != 0)
+		result |= TIOCM_DSR;
+	if ((pin_state & PIN_DTR) != 0)
+		result |= TIOCM_DTR;
+	if ((pin_state & PIN_RI) != 0)
+		result |= TIOCM_RI;
+	if ((pin_state & PIN_DCD) != 0)
+		result |= TIOCM_CD;
+
+	dbg("%s() = 0x%08x", __FUNCTION__, result);
+
+	return result;
+}
+
+static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
+{
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	unsigned long flags;
+	unsigned int prev, status;
+	unsigned int changed;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	prev = priv->status.pin_state;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	while (1) {
+		wait_event_interruptible(priv->intr_wait, priv->status.pin_state != prev);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+
+		spin_lock_irqsave(&priv->lock, flags);
+		status = priv->status.pin_state & PIN_MASK;
+		spin_unlock_irqrestore(&priv->lock, flags);
+
+		changed = prev ^ status;
+		/* FIXME: check if this is correct (active high/low) */
+		if (	((arg & TIOCM_RNG) && (changed & PIN_RI)) ||
+			((arg & TIOCM_DSR) && (changed & PIN_DSR)) ||
+			((arg & TIOCM_CD)  && (changed & PIN_DCD)) ||
+			((arg & TIOCM_CTS) && (changed & PIN_CTS))) {
+				return 0;
+		}
+		prev = status;
+	}
+
+	/* NOTREACHED */
+	return 0;
+}
+
+static int oti6858_ioctl(struct usb_serial_port *port, struct file *file,
+			unsigned int cmd, unsigned long arg)
+{
+	void __user *user_arg = (void __user *) arg;
+	unsigned int x;
+
+	dbg("%s(port = %d, cmd = 0x%04x, arg = 0x%08lx)",
+				__FUNCTION__, port->number, cmd, arg);
+
+	switch (cmd) {
+		case TCGETS:
+			if (copy_to_user(user_arg, port->tty->termios,
+						sizeof(struct ktermios))) {
+				return -EFAULT;
+			}
+			return 0;
+
+		case TCSETS:
+		case TCSETSW:	/* FIXME: this is not the same! */
+		case TCSETSF:	/* FIXME: this is not the same! */
+			if (copy_from_user(port->tty->termios, user_arg,
+						sizeof(struct ktermios))) {
+				return -EFAULT;
+			}
+			oti6858_set_termios(port, NULL);
+			return 0;
+
+		case TCFLSH:
+			/* FIXME */
+			return 0;
+
+		case TIOCMBIS:
+			if (copy_from_user(&x, user_arg, sizeof(x)))
+				return -EFAULT;
+			return oti6858_tiocmset(port, NULL, x, 0);
+
+		case TIOCMBIC:
+			if (copy_from_user(&x, user_arg, sizeof(x)))
+				return -EFAULT;
+			return oti6858_tiocmset(port, NULL, 0, x);
+
+		case TIOCGSERIAL:
+			if (copy_to_user(user_arg, port->tty->termios,
+						sizeof(struct ktermios))) {
+				return -EFAULT;
+			}
+                        return 0;
+
+		case TIOCSSERIAL:
+			if (copy_from_user(port->tty->termios, user_arg,
+						sizeof(struct ktermios))) {
+				return -EFAULT;
+			}
+			oti6858_set_termios(port, NULL);
+			return 0;
+
+		case TIOCMIWAIT:
+			dbg("%s(): TIOCMIWAIT", __FUNCTION__);
+			return wait_modem_info(port, arg);
+
+		default:
+			dbg("%s(): 0x%04x not supported", __FUNCTION__, cmd);
+			break;
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+static void oti6858_break_ctl(struct usb_serial_port *port, int break_state)
+{
+	int state;
+
+	dbg("%s(port = %d)", __FUNCTION__, port->number);
+
+	state = (break_state == 0) ? 0 : 1;
+	dbg("%s(): turning break %s", __FUNCTION__, state ? "on" : "off");
+
+	/* FIXME */
+/*
+	result = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0),
+				  BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
+				  0, NULL, 0, 100);
+	if (result != 0)
+		dbg("%s(): error sending break", __FUNCTION__);
+ */
+}
+
+static void oti6858_shutdown(struct usb_serial *serial)
+{
+	struct oti6858_private *priv;
+	int i;
+
+	dbg("%s()", __FUNCTION__);
+
+	for (i = 0; i < serial->num_ports; ++i) {
+		priv = usb_get_serial_port_data(serial->port[i]);
+		if (priv) {
+			pl2303_buf_free(priv->buf);
+			kfree(priv);
+			usb_set_serial_port_data(serial->port[i], NULL);
+		}
+	}
+}
+
+static void oti6858_read_int_callback(struct urb *urb)
+{
+	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	int transient = 0, can_recv = 0, resubmit = 1;
+
+	dbg("%s(port = %d, urb->status = %d)",
+				__FUNCTION__, port->number, urb->status);
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s(): urb shutting down with status: %d",
+					__FUNCTION__, urb->status);
+		return;
+	default:
+		dbg("%s(): nonzero urb status received: %d",
+					__FUNCTION__, urb->status);
+		break;
+	}
+
+	if (urb->status == 0 && urb->actual_length == OTI6858_CTRL_PKT_SIZE) {
+		struct oti6858_control_pkt *xs = urb->transfer_buffer;
+		unsigned long flags;
+
+		spin_lock_irqsave(&priv->lock, flags);
+
+		if (!priv->transient) {
+			if (!OTI6858_CTRL_EQUALS_PENDING(xs, priv)) {
+				if (xs->rx_bytes_avail == 0) {
+					priv->transient = 4;
+					priv->setup_done = 0;
+					resubmit = 0;
+					dbg("%s(): scheduling setup_line()",
+					    __FUNCTION__);
+					schedule_delayed_work(&priv->delayed_setup_work, 0);
+				}
+			}
+		} else {
+			if (OTI6858_CTRL_EQUALS_PENDING(xs, priv)) {
+				priv->transient = 0;
+			} else if (!priv->setup_done) {
+				resubmit = 0;
+			} else if (--priv->transient == 0) {
+				if (xs->rx_bytes_avail == 0) {
+					priv->transient = 4;
+					priv->setup_done = 0;
+					resubmit = 0;
+					dbg("%s(): scheduling setup_line()",
+					    __FUNCTION__);
+					schedule_delayed_work(&priv->delayed_setup_work, 0);
+				}
+			}
+		}
+
+		if (!priv->transient) {
+			if (xs->pin_state != priv->status.pin_state)
+				wake_up_interruptible(&priv->intr_wait);
+			memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE);
+		}
+
+		if (!priv->transient && xs->rx_bytes_avail != 0) {
+			can_recv = xs->rx_bytes_avail;
+			priv->flags.read_urb_in_use = 1;
+		}
+
+		transient = priv->transient;
+		spin_unlock_irqrestore(&priv->lock, flags);
+	}
+
+	if (can_recv) {
+		int result;
+
+		port->read_urb->dev = port->serial->dev;
+		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
+		if (result != 0) {
+			priv->flags.read_urb_in_use = 0;
+			dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
+					" error %d\n", __FUNCTION__, result);
+		} else {
+			resubmit = 0;
+		}
+	} else if (!transient) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&priv->lock, flags);
+		if (priv->flags.write_urb_in_use == 0
+				&& pl2303_buf_data_avail(priv->buf) != 0) {
+			schedule_delayed_work(&priv->delayed_write_work,0);
+			resubmit = 0;
+		}
+		spin_unlock_irqrestore(&priv->lock, flags);
+	}
+
+	if (resubmit) {
+		int result;
+
+//		dbg("%s(): submitting interrupt urb", __FUNCTION__);
+		urb->dev = port->serial->dev;
+		result = usb_submit_urb(urb, GFP_ATOMIC);
+		if (result != 0) {
+			dev_err(&urb->dev->dev,
+					"%s(): usb_submit_urb() failed with"
+					" error %d\n", __FUNCTION__, result);
+		}
+	}
+}
+
+static void oti6858_read_bulk_callback(struct urb *urb)
+{
+	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	struct tty_struct *tty;
+	unsigned char *data = urb->transfer_buffer;
+	unsigned long flags;
+	int i, result;
+	char tty_flag;
+
+	dbg("%s(port = %d, urb->status = %d)",
+				__FUNCTION__, port->number, urb->status);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->flags.read_urb_in_use = 0;
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	if (urb->status != 0) {
+		if (!port->open_count) {
+			dbg("%s(): port is closed, exiting", __FUNCTION__);
+			return;
+		}
+		/*
+		if (urb->status == -EPROTO) {
+			// PL2303 mysteriously fails with -EPROTO reschedule the read
+			dbg("%s - caught -EPROTO, resubmitting the urb", __FUNCTION__);
+			urb->status = 0;
+			urb->dev = port->serial->dev;
+			result = usb_submit_urb(urb, GFP_ATOMIC);
+			if (result)
+				dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result);
+			return;
+		}
+		*/
+		dbg("%s(): unable to handle the error, exiting", __FUNCTION__);
+		return;
+	}
+
+	// get tty_flag from status
+	tty_flag = TTY_NORMAL;
+
+/* FIXME: probably, errors will be signalled using interrupt pipe! */
+/*
+	// break takes precedence over parity,
+	// which takes precedence over framing errors
+	if (status & UART_BREAK_ERROR )
+		tty_flag = TTY_BREAK;
+	else if (status & UART_PARITY_ERROR)
+		tty_flag = TTY_PARITY;
+	else if (status & UART_FRAME_ERROR)
+		tty_flag = TTY_FRAME;
+	dbg("%s - tty_flag = %d", __FUNCTION__, tty_flag);
+*/
+
+	tty = port->tty;
+	if (tty != NULL && urb->actual_length > 0) {
+		tty_buffer_request_room(tty, urb->actual_length);
+		for (i = 0; i < urb->actual_length; ++i)
+			tty_insert_flip_char(tty, data[i], tty_flag);
+		tty_flip_buffer_push(tty);
+	}
+
+	// schedule the interrupt urb if we are still open */
+	if (port->open_count != 0) {
+		port->interrupt_in_urb->dev = port->serial->dev;
+		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+		if (result != 0) {
+			dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
+					" error %d\n", __FUNCTION__, result);
+		}
+	}
+}
+
+static void oti6858_write_bulk_callback(struct urb *urb)
+{
+	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct oti6858_private *priv = usb_get_serial_port_data(port);
+	int result;
+
+	dbg("%s(port = %d, urb->status = %d)",
+				__FUNCTION__, port->number, urb->status);
+
+	switch (urb->status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s(): urb shutting down with status: %d",
+					__FUNCTION__, urb->status);
+		priv->flags.write_urb_in_use = 0;
+		return;
+	default:
+		/* error in the urb, so we have to resubmit it */
+		dbg("%s(): nonzero write bulk status received: %d",
+					__FUNCTION__, urb->status);
+		dbg("%s(): overflow in write", __FUNCTION__);
+
+		port->write_urb->transfer_buffer_length = 1;
+		port->write_urb->dev = port->serial->dev;
+		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
+		if (result) {
+			dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
+					" error %d\n", __FUNCTION__, result);
+		} else {
+			return;
+		}
+	}
+
+	priv->flags.write_urb_in_use = 0;
+
+	// schedule the interrupt urb if we are still open */
+	port->interrupt_in_urb->dev = port->serial->dev;
+	dbg("%s(): submitting interrupt urb", __FUNCTION__);
+	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
+	if (result != 0) {
+		dev_err(&port->dev, "%s(): failed submitting int urb,"
+					" error %d\n", __FUNCTION__, result);
+	}
+}
+
+
+/*
+ * pl2303_buf_alloc
+ *
+ * Allocate a circular buffer and all associated memory.
+ */
+static struct pl2303_buf *pl2303_buf_alloc(unsigned int size)
+{
+	struct pl2303_buf *pb;
+
+	if (size == 0)
+		return NULL;
+
+	pb = (struct pl2303_buf *)kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL);
+	if (pb == NULL)
+		return NULL;
+
+	pb->buf_buf = kmalloc(size, GFP_KERNEL);
+	if (pb->buf_buf == NULL) {
+		kfree(pb);
+		return NULL;
+	}
+
+	pb->buf_size = size;
+	pb->buf_get = pb->buf_put = pb->buf_buf;
+
+	return pb;
+}
+
+/*
+ * pl2303_buf_free
+ *
+ * Free the buffer and all associated memory.
+ */
+static void pl2303_buf_free(struct pl2303_buf *pb)
+{
+	if (pb) {
+		kfree(pb->buf_buf);
+		kfree(pb);
+	}
+}
+
+/*
+ * pl2303_buf_clear
+ *
+ * Clear out all data in the circular buffer.
+ */
+static void pl2303_buf_clear(struct pl2303_buf *pb)
+{
+	if (pb != NULL) {
+		/* equivalent to a get of all data available */
+		pb->buf_get = pb->buf_put;
+	}
+}
+
+/*
+ * pl2303_buf_data_avail
+ *
+ * Return the number of bytes of data available in the circular
+ * buffer.
+ */
+static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb)
+{
+	if (pb == NULL)
+		return 0;
+	return ((pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size);
+}
+
+/*
+ * pl2303_buf_space_avail
+ *
+ * Return the number of bytes of space available in the circular
+ * buffer.
+ */
+static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb)
+{
+	if (pb == NULL)
+		return 0;
+	return ((pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size);
+}
+
+/*
+ * pl2303_buf_put
+ *
+ * Copy data data from a user buffer and put it into the circular buffer.
+ * Restrict to the amount of space available.
+ *
+ * Return the number of bytes copied.
+ */
+static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf,
+					unsigned int count)
+{
+	unsigned int len;
+
+	if (pb == NULL)
+		return 0;
+
+	len  = pl2303_buf_space_avail(pb);
+	if (count > len)
+		count = len;
+
+	if (count == 0)
+		return 0;
+
+	len = pb->buf_buf + pb->buf_size - pb->buf_put;
+	if (count > len) {
+		memcpy(pb->buf_put, buf, len);
+		memcpy(pb->buf_buf, buf+len, count - len);
+		pb->buf_put = pb->buf_buf + count - len;
+	} else {
+		memcpy(pb->buf_put, buf, count);
+		if (count < len)
+			pb->buf_put += count;
+		else /* count == len */
+			pb->buf_put = pb->buf_buf;
+	}
+
+	return count;
+}
+
+/*
+ * pl2303_buf_get
+ *
+ * Get data from the circular buffer and copy to the given buffer.
+ * Restrict to the amount of data available.
+ *
+ * Return the number of bytes copied.
+ */
+static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf,
+					unsigned int count)
+{
+	unsigned int len;
+
+	if (pb == NULL)
+		return 0;
+
+	len = pl2303_buf_data_avail(pb);
+	if (count > len)
+		count = len;
+
+	if (count == 0)
+		return 0;
+
+	len = pb->buf_buf + pb->buf_size - pb->buf_get;
+	if (count > len) {
+		memcpy(buf, pb->buf_get, len);
+		memcpy(buf+len, pb->buf_buf, count - len);
+		pb->buf_get = pb->buf_buf + count - len;
+	} else {
+		memcpy(buf, pb->buf_get, count);
+		if (count < len)
+			pb->buf_get += count;
+		else /* count == len */
+			pb->buf_get = pb->buf_buf;
+	}
+
+	return count;
+}
+
+/* module description and (de)initialization */
+
+static int __init oti6858_init(void)
+{
+	int retval;
+
+	if ((retval = usb_serial_register(&oti6858_device)) == 0) {
+		if ((retval = usb_register(&oti6858_driver)) != 0)
+			usb_serial_deregister(&oti6858_device);
+		else
+			return 0;
+	}
+
+	return retval;
+}
+
+static void __exit oti6858_exit(void)
+{
+	usb_deregister(&oti6858_driver);
+	usb_serial_deregister(&oti6858_device);
+}
+
+module_init(oti6858_init);
+module_exit(oti6858_exit);
+
+MODULE_DESCRIPTION(OTI6858_DESCRIPTION);
+MODULE_AUTHOR(OTI6858_AUTHOR);
+MODULE_VERSION(OTI6858_VERSION);
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "enable debug output");
+