diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 937ad6fe..e1f4e19 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -99,5 +99,7 @@
 
 source "drivers/staging/stlc45xx/Kconfig"
 
+source "drivers/staging/uc2322/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 88be12e..a7177d2 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -32,3 +32,4 @@
 obj-$(CONFIG_DST)		+= dst/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
 obj-$(CONFIG_STLC45XX)		+= stlc45xx/
+obj-$(CONFIG_USB_SERIAL_ATEN2011)	+= uc2322/
diff --git a/drivers/staging/uc2322/Kconfig b/drivers/staging/uc2322/Kconfig
new file mode 100644
index 0000000..2e0c6e79
--- /dev/null
+++ b/drivers/staging/uc2322/Kconfig
@@ -0,0 +1,10 @@
+config USB_SERIAL_ATEN2011
+	tristate "ATEN 2011 USB to serial device support"
+	depends on USB_SERIAL
+	default N
+	---help---
+	  Say Y here if you want to use a ATEN 2011 dual port USB to serial
+	  adapter.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called aten2011.
diff --git a/drivers/staging/uc2322/Makefile b/drivers/staging/uc2322/Makefile
new file mode 100644
index 0000000..49c18d6
--- /dev/null
+++ b/drivers/staging/uc2322/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_USB_SERIAL_ATEN2011)	+= aten2011.o
diff --git a/drivers/staging/uc2322/TODO b/drivers/staging/uc2322/TODO
new file mode 100644
index 0000000..8d96ad4
--- /dev/null
+++ b/drivers/staging/uc2322/TODO
@@ -0,0 +1,8 @@
+TODO:
+	- checkpatch.pl cleanups
+	- sparse cleanups
+	- remove dead and useless code (auditing the tty ioctls to
+	  verify that they really are correct and needed.)
+
+Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
+Russell Lang <gsview@ghostgum.com.au>.
diff --git a/drivers/staging/uc2322/aten2011.c b/drivers/staging/uc2322/aten2011.c
new file mode 100644
index 0000000..2c3e477
--- /dev/null
+++ b/drivers/staging/uc2322/aten2011.c
@@ -0,0 +1,3625 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+/*************************************************************************
+ *** --------------------------------------------------------------------
+ ***
+ *** Project Name: ATENINTL
+ ***
+ *** Module Name: ATEN2011
+ ***
+ *** File: aten2011.c
+ ***
+ ***
+ *** File Revision: 1.2
+ ***
+ *** Revision Date:  2009-01-16
+ ***
+ ***
+ *** Purpose	  : It gives an interface between USB to  4 Serial
+ ***                and serves as a Serial Driver for the high
+ ***		    level layers /applications.
+ ***
+ *** Change History:
+ ***	Modified from ATEN revision 1.2 for Linux kernel 2.6.26 or later
+ ***
+ *** LEGEND	  :
+ ***
+ ***
+ *** DBG - Code inserted due to as part of debugging
+ *** DPRINTK - Debug Print statement
+ ***
+ *************************************************************************/
+
+/* all file inclusion goes here */
+
+
+#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/module.h>
+//#include <linux/spinlock.h>
+#include <linux/serial.h>
+//#include <linux/ioctl.h>
+#include <linux/usb.h>
+#include <asm/uaccess.h>
+
+
+#define KERNEL_2_6		1
+
+#include <linux/usb/serial.h>
+#include "aten2011.h"            /* ATEN2011 Defines    */
+#include "aten2011_16C50.h"	/* 16C50 UART defines */
+
+/* all defines goes here */
+
+/*
+ * Debug related defines
+ */
+
+/* 1: Enables the debugging -- 0: Disable the debugging */
+
+//#define printk //
+
+#define ATEN_DEBUG	0
+
+#ifdef ATEN_DEBUG
+	static int debug = 0;
+	#define DPRINTK(fmt, args...) printk( "%s: " fmt, __FUNCTION__ , ## args)
+
+#else
+	static int debug = 0;
+	#define DPRINTK(fmt, args...)
+
+#endif
+//#undef DPRINTK
+//	#define DPRINTK(fmt, args...)
+
+
+
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "1.3.1"
+#define DRIVER_DESC "ATENINTL 2011 USB Serial Adapter"
+
+/*
+ * Defines used for sending commands to port
+ */
+
+#define WAIT_FOR_EVER   (HZ * 0 ) /* timeout urb is wait for ever*/
+#define ATEN_WDR_TIMEOUT (HZ * 5 ) /* default urb timeout */
+
+#define ATEN_PORT1       0x0200
+#define ATEN_PORT2       0x0300
+#define ATEN_VENREG      0x0000
+#define ATEN_MAX_PORT	 0x02
+#define ATEN_WRITE       0x0E
+#define ATEN_READ        0x0D
+
+/* Requests */
+#define ATEN_RD_RTYPE 0xC0
+#define ATEN_WR_RTYPE 0x40
+#define ATEN_RDREQ    0x0D
+#define ATEN_WRREQ    0x0E
+#define ATEN_CTRL_TIMEOUT        500
+#define VENDOR_READ_LENGTH                      (0x01)
+
+
+int ATEN2011_Thr_cnt;
+//int ATEN2011_spectrum_2or4ports; //this says the number of ports in the device
+//int NoOfOpenPorts;
+
+int RS485mode=0; //set to 1 for RS485 mode and 0 for RS232 mode
+
+static struct usb_serial* ATEN2011_get_usb_serial (struct usb_serial_port *port, const
+char *function);
+static int ATEN2011_serial_paranoia_check (struct usb_serial *serial, const char
+*function);
+static int ATEN2011_port_paranoia_check (struct usb_serial_port *port, const char
+*function);
+
+
+/* setting and get register values */
+static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 val);
+static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 * val);
+static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 val);
+static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 * val);
+
+void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port);
+
+/************************************************************************/
+/************************************************************************/
+/*             I N T E R F A C E   F U N C T I O N S			*/
+/*             I N T E R F A C E   F U N C T I O N S			*/
+/************************************************************************/
+/************************************************************************/
+
+static inline void ATEN2011_set_serial_private(struct usb_serial *serial, struct ATENINTL_serial *data)
+{
+		usb_set_serial_data(serial, (void *)data );
+}
+
+static inline struct ATENINTL_serial * ATEN2011_get_serial_private(struct usb_serial *serial)
+{
+		return (struct ATENINTL_serial*) usb_get_serial_data(serial);
+}
+
+static inline void ATEN2011_set_port_private(struct usb_serial_port *port, struct ATENINTL_port *data)
+{
+		usb_set_serial_port_data(port, (void*)data );
+}
+
+static inline struct ATENINTL_port * ATEN2011_get_port_private(struct usb_serial_port *port)
+{
+	return (struct ATENINTL_port*) usb_get_serial_port_data(port);
+}
+
+/*
+Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter.
+
+Input Parameters:
+usb_serial_port:  Data Structure usb_serialport correponding to that seril port.
+Reg: Register Address
+Val:  Value to set in the Register.
+ */
+
+static int ATEN2011_set_reg_sync(struct usb_serial_port *port, __u16 reg, __u16  val)
+{
+        struct usb_device *dev = port->serial->dev;
+	val = val & 0x00ff;
+	DPRINTK("ATEN2011_set_reg_sync offset is %x, value %x\n",reg,val);
+
+
+        return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
+                        ATEN_WR_RTYPE, val, reg, NULL, 0,ATEN_WDR_TIMEOUT);
+}
+
+
+
+/*
+Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter.
+
+Input Parameters:
+usb_serial_port:  Data Structure usb_serialport correponding to that seril port.
+Reg: Register Address
+Val:  Value to receive from the Register.
+ */
+
+static int ATEN2011_get_reg_sync(struct usb_serial_port *port, __u16 reg, __u16 * val)
+{
+        struct usb_device *dev = port->serial->dev;
+        int ret=0;
+
+        ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ,
+                        ATEN_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT);
+	DPRINTK("ATEN2011_get_reg_sync offset is %x, return val %x\n",reg,*val);
+	*val = (*val) & 0x00ff;
+        return ret;
+}
+
+
+
+/*
+Description:- To set the Uart register by calling usb_fill_control_urb function by passing usb_sndctrlpipe function as parameter.
+
+Input Parameters:
+usb_serial_port:  Data Structure usb_serialport correponding to that seril port.
+Reg: Register Address
+Val:  Value to set in the Register.
+ */
+
+static int ATEN2011_set_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16  val)
+{
+
+
+        struct usb_device *dev = port->serial->dev;
+	struct ATENINTL_serial *ATEN2011_serial;
+	int minor;
+	ATEN2011_serial = ATEN2011_get_serial_private(port->serial);
+	minor = port->serial->minor;
+ 	if (minor == SERIAL_TTY_NO_MINOR)
+	    minor = 0;
+	val = val & 0x00ff;
+        // For the UART control registers, the application number need to be Or'ed
+
+	if(ATEN2011_serial->ATEN2011_spectrum_2or4ports == 4)
+	{
+	        val |= (((__u16)port->number - (__u16)(minor))+1)<<8;
+		DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val);
+	}
+	else
+	{
+		if( ((__u16)port->number - (__u16)(minor)) == 0)
+		{
+		//	val= 0x100;
+	        val |= (((__u16)port->number - (__u16)(minor))+1)<<8;
+		DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val);
+		}
+		else
+		{
+		//	val=0x300;
+	        val |= (((__u16)port->number - (__u16)(minor))+2)<<8;
+			DPRINTK("ATEN2011_set_Uart_Reg application number is %x\n",val);
+		}
+	}
+        return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), ATEN_WRREQ,
+                        ATEN_WR_RTYPE, val, reg, NULL, 0,ATEN_WDR_TIMEOUT);
+
+}
+
+
+/*
+Description:- To set the Control register by calling usb_fill_control_urb function by passing usb_rcvctrlpipe function as parameter.
+
+Input Parameters:
+usb_serial_port:  Data Structure usb_serialport correponding to that seril port.
+Reg: Register Address
+Val:  Value to receive from the Register.
+ */
+static int ATEN2011_get_Uart_Reg(struct usb_serial_port *port, __u16 reg, __u16 * val)
+{
+        struct usb_device *dev = port->serial->dev;
+        int ret=0;
+        __u16 Wval;
+	 struct ATENINTL_serial *ATEN2011_serial;
+	int minor = port->serial->minor;
+        ATEN2011_serial = ATEN2011_get_serial_private(port->serial);
+ 	if (minor == SERIAL_TTY_NO_MINOR)
+	    minor = 0;
+
+	//DPRINTK("application number is %4x \n",(((__u16)port->number - (__u16)(minor))+1)<<8);
+	/*Wval  is same as application number*/
+	if(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4)
+	{
+        	Wval=(((__u16)port->number - (__u16)(minor))+1)<<8;
+			DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval);
+	}
+	else
+	{
+		if( ((__u16)port->number - (__u16)(minor)) == 0)
+		{
+	 	//	Wval= 0x100;
+        	Wval=(((__u16)port->number - (__u16)(minor))+1)<<8;
+			DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval);
+		}
+		else
+		{
+		//	Wval=0x300;
+        	Wval=(((__u16)port->number - (__u16)(minor))+2)<<8;
+			DPRINTK("ATEN2011_get_Uart_Reg application number is %x\n",Wval);
+		}
+	}
+	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), ATEN_RDREQ,
+                        ATEN_RD_RTYPE, Wval, reg, val,VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT);
+	*val = (*val) & 0x00ff;
+        return ret;
+}
+
+
+
+void ATEN2011_Dump_serial_port(struct ATENINTL_port *ATEN2011_port)
+{
+
+	DPRINTK("***************************************\n");
+	DPRINTK("Application number is %4x\n",ATEN2011_port->AppNum);
+	DPRINTK("SpRegOffset is %2x\n",ATEN2011_port->SpRegOffset);
+	DPRINTK("ControlRegOffset is %2x \n",ATEN2011_port->ControlRegOffset);
+	DPRINTK("DCRRegOffset is %2x \n",ATEN2011_port->DcrRegOffset);
+	//DPRINTK("ClkSelectRegOffset is %2x \n",ATEN2011_port->ClkSelectRegOffset);
+	DPRINTK("***************************************\n");
+
+}
+
+/* all structre defination goes here */
+/****************************************************************************
+ * ATENINTL2011_4port_device
+ *              Structure defining ATEN2011, usb serial device
+ ****************************************************************************/
+static struct usb_serial_driver ATENINTL2011_4port_device = {
+	.driver                 = {
+                                        .owner  = THIS_MODULE,
+                                        .name   = "ATEN2011",
+                                },
+        .description            = DRIVER_DESC,
+        .id_table               = ATENINTL_port_id_table,
+	.open			= ATEN2011_open,
+	.close			= ATEN2011_close,
+	.write			= ATEN2011_write,
+	.write_room		= ATEN2011_write_room,
+	.chars_in_buffer	= ATEN2011_chars_in_buffer,
+	.throttle		= ATEN2011_throttle,
+	.unthrottle		= ATEN2011_unthrottle,
+	.calc_num_ports		= ATEN2011_calc_num_ports,
+
+#ifdef ATENSerialProbe
+	.probe			= ATEN2011_serial_probe,
+#endif
+	.ioctl			= ATEN2011_ioctl,
+	.set_termios		= ATEN2011_set_termios,
+	.break_ctl		= ATEN2011_break,
+//	.break_ctl  		= ATEN2011_break_ctl,
+	.tiocmget               = ATEN2011_tiocmget,
+        .tiocmset               = ATEN2011_tiocmset,
+	.attach			= ATEN2011_startup,
+	.shutdown		= ATEN2011_shutdown,
+	.read_bulk_callback	= ATEN2011_bulk_in_callback,
+	.read_int_callback      = ATEN2011_interrupt_callback,
+};
+
+static struct usb_driver io_driver = {
+	.name =		"ATEN2011",
+	.probe =	usb_serial_probe,
+	.disconnect =	usb_serial_disconnect,
+	.id_table =	id_table_combined,
+};
+
+
+
+/************************************************************************/
+/************************************************************************/
+/*            U S B  C A L L B A C K   F U N C T I O N S                */
+/*            U S B  C A L L B A C K   F U N C T I O N S                */
+/************************************************************************/
+/************************************************************************/
+
+/*****************************************************************************
+ * ATEN2011_interrupt_callback
+ *	this is the callback function for when we have received data on the
+ *	interrupt endpoint.
+ * Input : 1 Input
+ *			pointer to the URB packet,
+ *
+ *****************************************************************************/
+//#ifdef ATEN2011
+static void ATEN2011_interrupt_callback (struct urb *urb)
+{
+	int result;
+	int length ;
+	struct ATENINTL_port   *ATEN2011_port;
+	struct ATENINTL_serial *ATEN2011_serial;
+	struct usb_serial *serial;
+	__u16 Data;
+	unsigned char *data;
+	__u8 sp[5],st;
+	int i;
+	__u16 wval;
+	int minor;
+	//printk("in the function ATEN2011_interrupt_callback Length %d, Data %x \n",urb->actual_length,(unsigned int)urb->transfer_buffer);
+	DPRINTK("%s"," : Entering\n");
+
+	ATEN2011_serial= (struct ATENINTL_serial *)urb->context;
+	if(!urb)// || ATEN2011_serial->status_polling_started == FALSE )
+	{
+		DPRINTK("%s","Invalid Pointer !!!!:\n");
+		return;
+	}
+
+	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);
+			goto exit;
+	}
+	length = urb->actual_length;
+	data = urb->transfer_buffer;
+
+	//ATEN2011_serial= (struct ATENINTL_serial *)urb->context;
+	//serial  = ATEN2011_get_usb_serial(port,__FUNCTION__);
+	serial = ATEN2011_serial->serial;
+
+	/* ATENINTL get 5 bytes
+	 * Byte 1 IIR Port 1 (port.number is 0)
+	 * Byte 2 IIR Port 2 (port.number is 1)
+	 * Byte 3 IIR Port 3 (port.number is 2)
+	 * Byte 4 IIR Port 4 (port.number is 3)
+	 * Byte 5 FIFO status for both */
+
+	if(length && length>5)
+	{
+		DPRINTK("%s \n","Wrong data !!!");
+		return;
+	}
+
+	/* MATRIX */
+	if(ATEN2011_serial->ATEN2011_spectrum_2or4ports == 4)
+	{
+	sp[0]=(__u8)data[0];
+	sp[1]=(__u8)data[1];
+	sp[2]=(__u8)data[2];
+	sp[3]=(__u8)data[3];
+	st=(__u8)data[4];
+	}
+	else
+	{
+	sp[0]=(__u8)data[0];
+	sp[1]=(__u8)data[2];
+	//sp[2]=(__u8)data[2];
+	//sp[3]=(__u8)data[3];
+	st=(__u8)data[4];
+
+	}
+	//	printk("%s data is sp1:%x sp2:%x sp3:%x sp4:%x status:%x\n",__FUNCTION__,sp1,sp2,sp3,sp4,st);
+	for(i=0;i<serial->num_ports;i++)
+	{
+	ATEN2011_port = ATEN2011_get_port_private(serial->port[i]);
+	minor = serial->minor;
+ 	if (minor == SERIAL_TTY_NO_MINOR)
+	    minor = 0;
+	if((ATEN2011_serial->ATEN2011_spectrum_2or4ports == 2) && (i != 0))
+		wval = (((__u16)serial->port[i]->number - (__u16)(minor))+2)<<8;
+	else
+		wval = (((__u16)serial->port[i]->number - (__u16)(minor))+1)<<8;
+	if(ATEN2011_port->open != FALSE)
+	{
+		//printk("%s wval is:(for 2011) %x\n",__FUNCTION__,wval);
+
+		if(sp[i] & 0x01)
+		{
+			DPRINTK("SP%d No Interrupt !!!\n",i);
+		}
+		else
+		{
+			switch(sp[i] & 0x0f)
+			{
+			case SERIAL_IIR_RLS:
+			    DPRINTK("Serial Port %d: Receiver status error or ",i);
+			    DPRINTK("address bit detected in 9-bit mode\n");
+			     ATEN2011_port->MsrLsr=1;
+			     ATEN2011_get_reg(ATEN2011_port,wval,LINE_STATUS_REGISTER,&Data);
+			     break;
+            		case SERIAL_IIR_MS:
+			     DPRINTK("Serial Port %d: Modem status change\n",i);
+			     ATEN2011_port->MsrLsr=0;
+			     ATEN2011_get_reg(ATEN2011_port,wval, MODEM_STATUS_REGISTER, &Data);
+			     break;
+			}
+		}
+	}
+
+	}
+exit:
+	if( ATEN2011_serial->status_polling_started == FALSE )
+		return;
+
+	result = usb_submit_urb (urb, GFP_ATOMIC);
+	if (result)
+	{
+		dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n", __FUNCTION__, result);
+	}
+
+	return;
+
+}
+//#endif
+static void ATEN2011_control_callback(struct urb *urb)
+{
+	unsigned char *data;
+	struct ATENINTL_port *ATEN2011_port;
+	__u8 regval=0x0;
+
+	if(!urb)
+        {
+                DPRINTK("%s","Invalid Pointer !!!!:\n");
+                return;
+        }
+
+        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);
+                        goto exit;
+        }
+
+
+	ATEN2011_port = (struct ATENINTL_port *)urb->context;
+
+	DPRINTK("%s urb buffer size is %d\n",__FUNCTION__,urb->actual_length);
+	DPRINTK("%s ATEN2011_port->MsrLsr is %d port %d\n",__FUNCTION__,ATEN2011_port->MsrLsr,ATEN2011_port->port_num);
+	data=urb->transfer_buffer;
+	regval=(__u8)data[0];
+	DPRINTK("%s data is %x\n",__FUNCTION__,regval);
+	if(ATEN2011_port->MsrLsr==0)
+		handle_newMsr(ATEN2011_port,regval);
+	else if(ATEN2011_port->MsrLsr==1)
+		handle_newLsr(ATEN2011_port,regval);
+
+exit:
+	return;
+}
+int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr)
+{
+	struct ATENINTL_port *ATEN2011_port;
+	struct  async_icount *icount;
+	ATEN2011_port=port;
+	icount = &ATEN2011_port->icount;
+	if (newMsr & (ATEN_MSR_DELTA_CTS | ATEN_MSR_DELTA_DSR | ATEN_MSR_DELTA_RI | ATEN_MSR_DELTA_CD)) {
+	        icount = &ATEN2011_port->icount;
+
+                /* update input line counters */
+                if (newMsr & ATEN_MSR_DELTA_CTS) {
+                        icount->cts++;
+                }
+                if (newMsr & ATEN_MSR_DELTA_DSR) {
+                        icount->dsr++;
+                }
+                if (newMsr & ATEN_MSR_DELTA_CD) {
+                        icount->dcd++;
+                }
+                if (newMsr & ATEN_MSR_DELTA_RI) {
+                        icount->rng++;
+                }
+        }
+
+
+	return 0;
+}
+int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr)
+{
+        struct  async_icount *icount;
+
+        dbg("%s - %02x", __FUNCTION__, newLsr);
+
+
+        if (newLsr & SERIAL_LSR_BI) {
+                //
+                // Parity and Framing errors only count if they
+                // occur exclusive of a break being
+                // received.
+                //
+                newLsr &= (__u8)(SERIAL_LSR_OE | SERIAL_LSR_BI);
+        }
+
+
+        /* update input line counters */
+        icount = &port->icount;
+        if (newLsr & SERIAL_LSR_BI) {
+                icount->brk++;
+        }
+	if (newLsr & SERIAL_LSR_OE) {
+                icount->overrun++;
+        }
+        if (newLsr & SERIAL_LSR_PE) {
+                icount->parity++;
+        }
+        if (newLsr & SERIAL_LSR_FE) {
+                icount->frame++;
+        }
+
+
+	return 0;
+}
+static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val)
+{
+        struct usb_device *dev = ATEN->port->serial->dev;
+        struct usb_ctrlrequest *dr=NULL;
+        unsigned char  *buffer=NULL;
+        int ret=0;
+        buffer= (__u8 *)ATEN->ctrl_buf;
+
+//      dr=(struct usb_ctrlrequest *)(buffer);
+        dr=(void *)(buffer + 2);
+        dr->bRequestType = ATEN_RD_RTYPE;
+        dr->bRequest = ATEN_RDREQ;
+        dr->wValue = cpu_to_le16(Wval);//0;
+        dr->wIndex = cpu_to_le16(reg);
+        dr->wLength = cpu_to_le16(2);
+
+        usb_fill_control_urb(ATEN->control_urb,dev,usb_rcvctrlpipe(dev,0),(unsigned char *)dr,buffer,2,ATEN2011_control_callback,ATEN);
+        ATEN->control_urb->transfer_buffer_length = 2;
+        ret=usb_submit_urb(ATEN->control_urb,GFP_ATOMIC);
+        return ret;
+}
+
+/*****************************************************************************
+ * ATEN2011_bulk_in_callback
+ *	this is the callback function for when we have received data on the
+ *	bulk in endpoint.
+ * Input : 1 Input
+ *			pointer to the URB packet,
+ *
+ *****************************************************************************/
+static void ATEN2011_bulk_in_callback (struct urb *urb)
+{
+	int			status;
+	unsigned char		*data ;
+	struct usb_serial	*serial;
+	struct usb_serial_port	*port;
+	struct ATENINTL_serial	*ATEN2011_serial;
+	struct ATENINTL_port	*ATEN2011_port;
+	struct tty_struct *tty;
+	if(!urb)
+	{
+		DPRINTK("%s","Invalid Pointer !!!!:\n");
+		return;
+	}
+
+	if (urb->status)
+	{
+		DPRINTK("nonzero read bulk status received: %d",urb->status);
+//		if(urb->status==84)
+		//ThreadState=1;
+		return;
+	}
+
+	ATEN2011_port= (struct ATENINTL_port*)urb->context;
+	if(!ATEN2011_port)
+	{
+		DPRINTK("%s","NULL ATEN2011_port pointer \n");
+		return ;
+	}
+
+	port = (struct usb_serial_port *)ATEN2011_port->port;
+	if (ATEN2011_port_paranoia_check (port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return;
+	}
+
+	serial  = ATEN2011_get_usb_serial(port,__FUNCTION__);
+	if(!serial)
+	{
+		DPRINTK("%s\n","Bad serial pointer ");
+		return;
+	}
+
+	DPRINTK("%s\n","Entering... \n");
+
+	data = urb->transfer_buffer;
+	ATEN2011_serial = ATEN2011_get_serial_private(serial);
+
+	DPRINTK("%s","Entering ........... \n");
+
+	if (urb->actual_length)
+	{
+//MATRIX
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+		tty = tty_port_tty_get(&ATEN2011_port->port->port);
+#elif LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27)
+		tty = ATEN2011_port->port->port.tty;
+#else
+		tty = ATEN2011_port->port->tty;
+#endif
+		if (tty)
+		{
+			tty_buffer_request_room(tty, urb->actual_length);
+			tty_insert_flip_string(tty, data, urb->actual_length);
+				DPRINTK(" %s \n",data);
+			tty_flip_buffer_push(tty);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+			tty_kref_put(tty);
+#endif
+		}
+
+
+		ATEN2011_port->icount.rx += urb->actual_length;
+		DPRINTK("ATEN2011_port->icount.rx is %d:\n",ATEN2011_port->icount.rx);
+//MATRIX
+	}
+
+	if(!ATEN2011_port->read_urb)
+	{
+		DPRINTK("%s","URB KILLED !!!\n");
+		return;
+	}
+
+	if(ATEN2011_port->read_urb->status!=-EINPROGRESS)
+	{
+		ATEN2011_port->read_urb->dev = serial->dev;
+
+		status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
+
+		if (status)
+		{
+			DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status);
+		}
+	}
+}
+
+/*****************************************************************************
+ * ATEN2011_bulk_out_data_callback
+ *	this is the callback function for when we have finished sending serial data
+ *	on the bulk out endpoint.
+ * Input : 1 Input
+ *			pointer to the URB packet,
+ *
+ *****************************************************************************/
+static void ATEN2011_bulk_out_data_callback (struct urb *urb)
+{
+	struct ATENINTL_port *ATEN2011_port ;
+	struct tty_struct *tty;
+	if(!urb)
+	{
+		DPRINTK("%s","Invalid Pointer !!!!:\n");
+		return;
+	}
+
+	if (urb->status)
+	{
+		DPRINTK("nonzero write bulk status received:%d\n", urb->status);
+		return;
+	}
+
+	ATEN2011_port = (struct ATENINTL_port *)urb->context;
+	if(!ATEN2011_port)
+	{
+		DPRINTK("%s","NULL ATEN2011_port pointer \n");
+		return ;
+	}
+
+	if (ATEN2011_port_paranoia_check (ATEN2011_port->port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return;
+	}
+
+	DPRINTK("%s \n","Entering .........");
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+	tty = tty_port_tty_get(&ATEN2011_port->port->port);
+#elif LINUX_VERSION_CODE == KERNEL_VERSION(2,6,27)
+	tty = ATEN2011_port->port->port.tty;
+#else
+	tty = ATEN2011_port->port->tty;
+#endif
+
+	if (tty && ATEN2011_port->open)
+	{
+		/* let the tty driver wakeup if it has a special *
+		 * write_wakeup function 			 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+		if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) {
+			(tty->ldisc.write_wakeup)(tty);
+		}
+#endif
+
+		/* tell the tty driver that something has changed */
+		wake_up_interruptible(&tty->write_wait);
+	}
+
+	/* Release the Write URB */
+	ATEN2011_port->write_in_progress = FALSE;
+
+//schedule_work(&ATEN2011_port->port->work);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
+	tty_kref_put(tty);
+#endif
+
+}
+
+
+
+
+
+
+/************************************************************************/
+/*       D R I V E R  T T Y  I N T E R F A C E  F U N C T I O N S       */
+/************************************************************************/
+#ifdef ATENSerialProbe
+static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id)
+{
+
+	/*need to implement the mode_reg reading and updating\
+			 structures usb_serial_ device_type\
+			(i.e num_ports, num_bulkin,bulkout etc)*/
+	/* Also we can update the changes  attach */
+	return 1;
+}
+#endif
+
+/*****************************************************************************
+ * SerialOpen
+ *	this function is called by the tty driver when a port is opened
+ *	If successful, we return 0
+ *	Otherwise we return a negative error number.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file * filp)
+#else
+static int ATEN2011_open(struct usb_serial_port *port, struct file * filp)
+#endif
+{
+    int response;
+    int j;
+    struct usb_serial *serial;
+//    struct usb_serial_port *port0;
+    struct urb *urb;
+    __u16 Data;
+    int status;
+    struct ATENINTL_serial *ATEN2011_serial;
+    struct ATENINTL_port *ATEN2011_port;
+    struct ktermios tmp_termios;
+    int minor;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+    struct tty_struct *tty = NULL;
+#endif
+	if (ATEN2011_port_paranoia_check (port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return -ENODEV;
+	}
+
+	//ATEN2011_serial->NoOfOpenPorts++;
+	serial = port->serial;
+
+	if (ATEN2011_serial_paranoia_check (serial, __FUNCTION__))
+	{
+		DPRINTK("%s","Serial Paranoia failed \n");
+		return -ENODEV;
+	}
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if (ATEN2011_port == NULL)
+		return -ENODEV;
+/*
+	if (ATEN2011_port->ctrl_buf==NULL)
+        {
+                ATEN2011_port->ctrl_buf = kmalloc(16,GFP_KERNEL);
+                if (ATEN2011_port->ctrl_buf == NULL) {
+                        printk(", Can't allocate ctrl buff\n");
+                        return -ENOMEM;
+                }
+
+        }
+
+	if(!ATEN2011_port->control_urb)
+	{
+	ATEN2011_port->control_urb=kmalloc(sizeof(struct urb),GFP_KERNEL);
+	}
+*/
+//	port0 = serial->port[0];
+
+	ATEN2011_serial = ATEN2011_get_serial_private(serial);
+
+	if (ATEN2011_serial == NULL )//|| port0 == NULL)
+	{
+		return -ENODEV;
+	}
+	// increment the number of opened ports counter here
+	ATEN2011_serial->NoOfOpenPorts++;
+	//printk("the num of ports opend is:%d\n",ATEN2011_serial->NoOfOpenPorts);
+
+
+     	usb_clear_halt(serial->dev, port->write_urb->pipe);
+     	usb_clear_halt(serial->dev, port->read_urb->pipe);
+
+		 /* Initialising the write urb pool */
+                 for (j = 0; j < NUM_URBS; ++j)
+                 {
+                        urb = usb_alloc_urb(0,GFP_ATOMIC);
+                        ATEN2011_port->write_urb_pool[j] = urb;
+
+                        if (urb == NULL)
+                        {
+                                err("No more urbs???");
+                                continue;
+                        }
+
+                        urb->transfer_buffer = NULL;
+                        urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
+                        if (!urb->transfer_buffer)
+                        {
+                                err("%s-out of memory for urb buffers.", __FUNCTION__);
+                                continue;
+                        }
+                }
+
+
+/*****************************************************************************
+ * Initialize ATEN2011 -- Write Init values to corresponding Registers
+ *
+ * Register Index
+ * 1 : IER
+ * 2 : FCR
+ * 3 : LCR
+ * 4 : MCR
+ *
+ * 0x08 : SP1/2 Control Reg
+ *****************************************************************************/
+
+//NEED to check the fallowing Block
+
+	status=0;
+	Data=0x0;
+	status=ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data);
+	if(status<0){
+		DPRINTK("Reading Spreg failed\n");
+		return -1;
+	}
+	Data |= 0x80;
+	status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data);
+	if(status<0){
+		DPRINTK("writing Spreg failed\n");
+		return -1;
+	}
+
+	Data &= ~0x80;
+	status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data);
+	if(status<0){
+		DPRINTK("writing Spreg failed\n");
+		return -1;
+	}
+
+
+//End of block to be checked
+//**************************CHECK***************************//
+
+		if(RS485mode==0)
+                       Data = 0xC0;
+	       else
+                        Data = 0x00;
+                status=0;
+                status=ATEN2011_set_Uart_Reg(port,SCRATCH_PAD_REGISTER,Data);
+                if(status<0) {
+                        DPRINTK("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status);
+                        return -1;
+                }
+                else DPRINTK("SCRATCH_PAD_REGISTER Writing success status%d\n",status);
+
+
+//**************************CHECK***************************//
+
+	status=0;
+	Data=0x0;
+	status=ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data);
+	if(status<0){
+		DPRINTK("Reading Controlreg failed\n");
+		return -1;
+	}
+	Data |= 0x08;//Driver done bit
+	/*
+	status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data);
+	if(status<0){
+		DPRINTK("writing Controlreg failed\n");
+		return -1;
+	}
+	*/
+	Data |= 0x20;//rx_disable
+	status=0;
+	status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data);
+	if(status<0){
+		DPRINTK("writing Controlreg failed\n");
+		return -1;
+	}
+
+	//do register settings here
+	// Set all regs to the device default values.
+	////////////////////////////////////
+	// First Disable all interrupts.
+	////////////////////////////////////
+
+	Data = 0x00;
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data);
+	if(status<0){
+		DPRINTK("disableing interrupts failed\n");
+		return -1;
+	}
+	 // Set FIFO_CONTROL_REGISTER to the default value
+	Data = 0x00;
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data);
+	if(status<0){
+		DPRINTK("Writing FIFO_CONTROL_REGISTER  failed\n");
+		return -1;
+	}
+
+	Data = 0xcf;  //chk
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data);
+	if(status<0){
+		DPRINTK("Writing FIFO_CONTROL_REGISTER  failed\n");
+		return -1;
+	}
+
+	Data = 0x03; //LCR_BITS_8
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+	ATEN2011_port->shadowLCR=Data;
+
+	Data = 0x0b; // MCR_DTR|MCR_RTS|MCR_MASTER_IE
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+	ATEN2011_port->shadowMCR=Data;
+
+#ifdef Check
+	Data = 0x00;
+	status=0;
+	status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data);
+	ATEN2011_port->shadowLCR=Data;
+
+	Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80
+	status = 0;
+	status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+
+	Data = 0x0c;
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data);
+
+	Data = 0x0;
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_MSB,Data);
+
+	Data = 0x00;
+	status=0;
+	status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data);
+
+//	Data = ATEN2011_port->shadowLCR; //data latch disable
+	Data = Data & ~SERIAL_LCR_DLAB;
+	status = 0;
+	status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+	ATEN2011_port->shadowLCR=Data;
+#endif
+	//clearing Bulkin and Bulkout Fifo
+	Data = 0x0;
+	status = 0;
+	status = ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data);
+
+	Data = Data | 0x0c;
+	status = 0;
+        status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data);
+
+	Data = Data & ~0x0c;
+	status = 0;
+        status = ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data);
+	//Finally enable all interrupts
+	Data = 0x0;
+	Data = 0x0c;
+	status = 0;
+        status = ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data);
+
+	//clearing rx_disable
+	Data = 0x0;
+	status = 0;
+        status = ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data);
+	Data = Data & ~0x20;
+	status = 0;
+        status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data);
+
+	// rx_negate
+	Data = 0x0;
+	status = 0;
+        status = ATEN2011_get_reg_sync(port,ATEN2011_port->ControlRegOffset,&Data);
+	Data = Data |0x10;
+	status = 0;
+        status = ATEN2011_set_reg_sync(port,ATEN2011_port->ControlRegOffset,Data);
+
+
+	/* force low_latency on so that our tty_push actually forces *
+	 * the data through,otherwise it is scheduled, and with      *
+	 * high data rates (like with OHCI) data can get lost.       */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = port->tty;
+#endif
+	if (tty)
+		tty->low_latency = 1;
+/*
+	printk("port number is %d \n",port->number);
+	printk("serial number is %d \n",port->serial->minor);
+	printk("Bulkin endpoint is %d \n",port->bulk_in_endpointAddress);
+	printk("BulkOut endpoint is %d \n",port->bulk_out_endpointAddress);
+	printk("Interrupt endpoint is %d \n",port->interrupt_in_endpointAddress);
+	printk("port's number in the device is %d\n",ATEN2011_port->port_num);
+*/
+////////////////////////
+//#ifdef CheckStatusPipe
+/* Check to see if we've set up our endpoint info yet    *
+     * (can't set it up in ATEN2011_startup as the structures *
+     * were not set up at that time.)                        */
+if(ATEN2011_serial->NoOfOpenPorts==1)
+{
+    	// start the status polling here
+    	ATEN2011_serial->status_polling_started = TRUE;
+	//if (ATEN2011_serial->interrupt_in_buffer == NULL)
+       // {
+		/* If not yet set, Set here */
+                ATEN2011_serial->interrupt_in_buffer = serial->port[0]->interrupt_in_buffer;
+         ATEN2011_serial->interrupt_in_endpoint = serial->port[0]->interrupt_in_endpointAddress;
+		//printk(" interrupt endpoint:%d \n",ATEN2011_serial->interrupt_in_endpoint);
+                ATEN2011_serial->interrupt_read_urb = serial->port[0]->interrupt_in_urb;
+
+                /* set up interrupt urb */
+	        usb_fill_int_urb(                                   \
+                        ATEN2011_serial->interrupt_read_urb,     \
+                        serial->dev,                            \
+                        usb_rcvintpipe(serial->dev,ATEN2011_serial->interrupt_in_endpoint),    \
+                        ATEN2011_serial->interrupt_in_buffer,             \
+                        ATEN2011_serial->interrupt_read_urb->transfer_buffer_length,\
+		        ATEN2011_interrupt_callback, ATEN2011_serial,     \
+                        ATEN2011_serial->interrupt_read_urb->interval  );
+
+	/* start interrupt read for ATEN2011               *
+                 * will continue as long as ATEN2011 is connected  */
+
+               response = usb_submit_urb (ATEN2011_serial->interrupt_read_urb,GFP_KERNEL);
+                if (response)
+                {
+                        DPRINTK("%s - Error %d submitting interrupt urb", __FUNCTION__, response);
+                }
+	//	else
+			// printk(" interrupt URB submitted\n");
+
+        //}
+
+}
+//#endif
+
+
+///////////////////////
+    	/* see if we've set up our endpoint info yet   *
+	 * (can't set it up in ATEN2011_startup as the  *
+	 * structures were not set up at that time.)   */
+
+	DPRINTK("port number is %d \n",port->number);
+	DPRINTK("serial number is %d \n",port->serial->minor);
+	DPRINTK("Bulkin endpoint is %d \n",port->bulk_in_endpointAddress);
+	DPRINTK("BulkOut endpoint is %d \n",port->bulk_out_endpointAddress);
+	DPRINTK("Interrupt endpoint is %d \n",port->interrupt_in_endpointAddress);
+	DPRINTK("port's number in the device is %d\n",ATEN2011_port->port_num);
+	ATEN2011_port->bulk_in_buffer    = port->bulk_in_buffer;
+    	ATEN2011_port->bulk_in_endpoint  = port->bulk_in_endpointAddress;
+	ATEN2011_port->read_urb          = port->read_urb;
+	ATEN2011_port->bulk_out_endpoint = port->bulk_out_endpointAddress;
+
+        minor = port->serial->minor;
+ 	if (minor == SERIAL_TTY_NO_MINOR)
+	    minor = 0;
+
+	/* set up our bulk in urb */
+	if((ATEN2011_serial->ATEN2011_spectrum_2or4ports==2)&&(((__u16)port->number - (__u16)(minor)) != 0))
+        {
+        usb_fill_bulk_urb(
+                ATEN2011_port->read_urb,serial->dev,\
+	        usb_rcvbulkpipe(serial->dev, (port->bulk_in_endpointAddress+2)),\
+  		 port->bulk_in_buffer,\
+                ATEN2011_port->read_urb->transfer_buffer_length,         \
+                ATEN2011_bulk_in_callback,ATEN2011_port);
+        }
+        else
+	usb_fill_bulk_urb(
+		ATEN2011_port->read_urb, 				\
+		serial->dev,						\
+		usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress),\
+		port->bulk_in_buffer,					\
+		ATEN2011_port->read_urb->transfer_buffer_length,		\
+		ATEN2011_bulk_in_callback,ATEN2011_port);
+
+	DPRINTK("ATEN2011_open: bulkin endpoint is %d\n",port->bulk_in_endpointAddress);
+	response = usb_submit_urb (ATEN2011_port->read_urb,GFP_KERNEL);
+	if (response)
+        {
+                err("%s - Error %d submitting control urb", __FUNCTION__, response);
+        }
+
+        /* initialize our wait queues */
+        init_waitqueue_head(&ATEN2011_port->wait_open);
+        init_waitqueue_head(&ATEN2011_port->wait_chase);
+        init_waitqueue_head(&ATEN2011_port->delta_msr_wait);
+        init_waitqueue_head(&ATEN2011_port->wait_command);
+
+        /* initialize our icount structure */
+        memset (&(ATEN2011_port->icount), 0x00, sizeof(ATEN2011_port->icount));
+
+        /* initialize our port settings */
+        ATEN2011_port->shadowMCR  = MCR_MASTER_IE; /* Must set to enable ints! */
+        ATEN2011_port->chaseResponsePending = FALSE;
+        /* send a open port command */
+        ATEN2011_port->openPending = FALSE;
+        ATEN2011_port->open        = TRUE;
+	//ATEN2011_change_port_settings(ATEN2011_port,old_termios);
+	/* Setup termios */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	ATEN2011_set_termios (tty, port, &tmp_termios);
+#else
+	ATEN2011_set_termios (port, &tmp_termios);
+#endif
+        ATEN2011_port->rxBytesAvail = 0x0;
+	ATEN2011_port->icount.tx=0;
+	ATEN2011_port->icount.rx=0;
+
+	 DPRINTK("\n\nusb_serial serial:%x       ATEN2011_port:%x\nATEN2011_serial:%x      usb_serial_port port:%x\n\n",(unsigned int)serial,(unsigned int)ATEN2011_port,(unsigned int)ATEN2011_serial,(unsigned int)port);
+
+
+
+
+        return 0;
+
+}
+
+
+/*****************************************************************************
+ * ATEN2011_close
+ *	this function is called by the tty driver when a port is closed
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp)
+#else
+static void ATEN2011_close(struct usb_serial_port *port, struct file *filp)
+#endif
+{
+	struct usb_serial *serial;
+	struct ATENINTL_serial *ATEN2011_serial;
+	struct ATENINTL_port *ATEN2011_port;
+	int	no_urbs;
+	__u16	Data;
+	//__u16   Data1= 20;
+
+	DPRINTK("%s\n","ATEN2011_close:entering...");
+	/* MATRIX  */
+	//ThreadState = 1;
+	/* MATRIX  */
+	//printk("Entering... :ATEN2011_close\n");
+	if (ATEN2011_port_paranoia_check (port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return;
+	}
+	serial = ATEN2011_get_usb_serial (port, __FUNCTION__);
+	if (!serial)
+	{
+		DPRINTK("%s","Serial Paranoia failed \n");
+		return;
+	}
+	// take the Adpater and port's private data
+	ATEN2011_serial = ATEN2011_get_serial_private(serial);
+	ATEN2011_port = ATEN2011_get_port_private(port);
+	if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
+	{
+		return;
+	}
+	if (serial->dev)
+	{
+		/* flush and block(wait) until tx is empty*/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		ATEN2011_block_until_tx_empty(tty, ATEN2011_port);
+#else
+		ATEN2011_block_until_tx_empty(ATEN2011_port);
+#endif
+	}
+	// kill the ports URB's
+	for (no_urbs = 0; no_urbs < NUM_URBS;no_urbs++)
+ 		usb_kill_urb (ATEN2011_port->write_urb_pool[no_urbs]);
+	/* Freeing Write URBs*/
+	for (no_urbs = 0; no_urbs< NUM_URBS; ++no_urbs)
+	{
+        	if (ATEN2011_port->write_urb_pool[no_urbs])
+                {
+                	if (ATEN2011_port->write_urb_pool[no_urbs]->transfer_buffer)
+                        	kfree(ATEN2011_port->write_urb_pool[no_urbs]->transfer_buffer);
+                	usb_free_urb (ATEN2011_port->write_urb_pool[no_urbs]);
+                }
+        }
+	/* While closing port, shutdown all bulk read, write  *
+	 * and interrupt read if they exists                  */
+	if (serial->dev)
+	{
+		if (ATEN2011_port->write_urb)
+		{
+			DPRINTK("%s","Shutdown bulk write\n");
+			usb_kill_urb (ATEN2011_port->write_urb);
+		}
+		if (ATEN2011_port->read_urb)
+		{
+			DPRINTK("%s","Shutdown bulk read\n");
+			usb_kill_urb (ATEN2011_port->read_urb);
+		}
+		if((&ATEN2011_port->control_urb))
+		{
+			DPRINTK("%s","Shutdown control read\n");
+		//	usb_kill_urb (ATEN2011_port->control_urb);
+
+		}
+	}
+	//if(ATEN2011_port->ctrl_buf != NULL)
+  	//kfree(ATEN2011_port->ctrl_buf);
+	// decrement the no.of open ports counter of an individual USB-serial adapter.
+	ATEN2011_serial->NoOfOpenPorts--;
+    DPRINTK("NoOfOpenPorts in close%d:in port%d\n",ATEN2011_serial->NoOfOpenPorts,port->number);
+	//printk("the num of ports opend is:%d\n",ATEN2011_serial->NoOfOpenPorts);
+	if(ATEN2011_serial->NoOfOpenPorts==0)
+	{
+		//stop the stus polling here
+		//printk("disabling the status polling flag to FALSE :\n");
+		ATEN2011_serial->status_polling_started = FALSE;
+		if(ATEN2011_serial->interrupt_read_urb)
+		{
+			DPRINTK("%s","Shutdown interrupt_read_urb\n");
+			//ATEN2011_serial->interrupt_in_buffer=NULL;
+			//usb_kill_urb (ATEN2011_serial->interrupt_read_urb);
+		}
+	}
+	if (ATEN2011_port->write_urb)
+	{
+		/* if this urb had a transfer buffer already (old tx) free it */
+		if (ATEN2011_port->write_urb->transfer_buffer != NULL)
+		{
+			kfree(ATEN2011_port->write_urb->transfer_buffer);
+		}
+		usb_free_urb(ATEN2011_port->write_urb);
+	}
+	// clear the MCR & IER
+	Data = 0x00;
+	ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+	Data = 0x00;
+	ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data);
+
+	//ATEN2011_get_Uart_Reg(port,MODEM_CONTROL_REGISTER,&Data1);
+	//printk("value of MCR after closing the port is : 0x%x\n",Data1);
+
+	ATEN2011_port->open         = FALSE;
+	ATEN2011_port->closePending = FALSE;
+	ATEN2011_port->openPending  = FALSE;
+	DPRINTK("%s \n","Leaving ............");
+
+}
+
+
+/*****************************************************************************
+ * SerialBreak
+ *	this function sends a break to the port
+ *****************************************************************************/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_break(struct tty_struct *tty, int break_state)
+#else
+static void ATEN2011_break(struct usb_serial_port *port, int break_state)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#endif
+        unsigned char data;
+	struct usb_serial *serial;
+	struct ATENINTL_serial *ATEN2011_serial;
+	struct ATENINTL_port *ATEN2011_port;
+
+	DPRINTK("%s \n","Entering ...........");
+	DPRINTK("ATEN2011_break: Start\n");
+
+	if (ATEN2011_port_paranoia_check (port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return;
+	}
+
+	serial = ATEN2011_get_usb_serial (port, __FUNCTION__);
+	if (!serial)
+	{
+		DPRINTK("%s","Serial Paranoia failed \n");
+		return;
+	}
+
+	ATEN2011_serial = ATEN2011_get_serial_private(serial);
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if ((ATEN2011_serial == NULL) || (ATEN2011_port == NULL))
+	{
+		return;
+	}
+
+	/* flush and chase */
+	ATEN2011_port->chaseResponsePending = TRUE;
+
+	if (serial->dev)
+	{
+
+		/* flush and block until tx is empty*/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		ATEN2011_block_until_chase_response(tty, ATEN2011_port);
+#else
+		ATEN2011_block_until_chase_response(ATEN2011_port);
+#endif
+	}
+
+        if(break_state == -1)
+        {
+                data = ATEN2011_port->shadowLCR | LCR_SET_BREAK;
+        }
+        else
+        {
+                data = ATEN2011_port->shadowLCR & ~LCR_SET_BREAK;
+        }
+
+        ATEN2011_port->shadowLCR  = data;
+	DPRINTK("ATEN2011_break ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR);
+	ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,ATEN2011_port->shadowLCR);
+
+	return;
+}
+
+
+/************************************************************************
+ *
+ * ATEN2011_block_until_chase_response
+ *
+ *	This function will block the close until one of the following:
+ *		1. Response to our Chase comes from ATEN2011
+ *		2. A timout of 10 seconds without activity has expired
+ *		   (1K of ATEN2011 data @ 2400 baud ==> 4 sec to empty)
+ *
+ ************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_block_until_chase_response(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port)
+#else
+static void ATEN2011_block_until_chase_response(struct ATENINTL_port *ATEN2011_port)
+#endif
+{
+	int timeout = 1*HZ;
+	int wait = 10;
+	int count ;
+
+
+	while (1)
+	{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		count = ATEN2011_chars_in_buffer(tty);
+#else
+		count = ATEN2011_chars_in_buffer(ATEN2011_port->port);
+#endif
+
+		/* Check for Buffer status */
+		if(count<=0)
+		{
+			ATEN2011_port->chaseResponsePending = FALSE;
+			return;
+		}
+
+		/* Block the thread for a while */
+		interruptible_sleep_on_timeout (&ATEN2011_port->wait_chase, timeout);
+                /* No activity.. count down section */
+		wait--;
+		if (wait == 0)
+		{
+			dbg("%s - TIMEOUT", __FUNCTION__);
+			return;
+		}
+		else
+		{
+	                /* Reset timout value back to seconds */
+			wait = 10;
+		}
+	}
+
+}
+
+
+/************************************************************************
+ *
+ * ATEN2011_block_until_tx_empty
+ *
+ *	This function will block the close until one of the following:
+ *		1. TX count are 0
+ *		2. The ATEN2011 has stopped
+ *		3. A timout of 3 seconds without activity has expired
+ *
+ ************************************************************************/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_block_until_tx_empty(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port)
+#else
+static void ATEN2011_block_until_tx_empty(struct ATENINTL_port *ATEN2011_port)
+#endif
+{
+	int timeout = HZ/10;
+	int wait = 30;
+	int count;
+
+	while (1)
+	{
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		count = ATEN2011_chars_in_buffer(tty);
+#else
+		count = ATEN2011_chars_in_buffer(ATEN2011_port->port);
+#endif
+
+                /* Check for Buffer status */
+		if(count<=0)
+		{
+			return;
+		}
+
+                /* Block the thread for a while */
+		interruptible_sleep_on_timeout (&ATEN2011_port->wait_chase, timeout);
+
+                /* No activity.. count down section */
+		wait--;
+		if (wait == 0)
+		{
+			dbg("%s - TIMEOUT", __FUNCTION__);
+			return;
+		}
+		else
+		{
+	                /* Reset timout value back to seconds */
+			wait = 30;
+		}
+	}
+}
+
+/*****************************************************************************
+ * ATEN2011_write_room
+ *	this function is called by the tty driver when it wants to know how many
+ *	bytes of data we can accept for a specific port.
+ *	If successful, we return the amount of room that we have for this port
+ *	Otherwise we return a negative error number.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_write_room (struct tty_struct *tty)
+#else
+static int ATEN2011_write_room (struct usb_serial_port *port)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+    struct usb_serial_port *port = tty->driver_data;
+#endif
+    int i;
+    int room = 0;
+    struct ATENINTL_port *ATEN2011_port;
+
+
+//	DPRINTK("%s \n"," ATEN2011_write_room:entering ...........");
+
+        if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+        {
+                DPRINTK("%s","Invalid port \n");
+                DPRINTK("%s \n"," ATEN2011_write_room:leaving ...........");
+                return -1;
+        }
+
+        ATEN2011_port = ATEN2011_get_port_private(port);
+        if (ATEN2011_port == NULL)
+        {
+                DPRINTK("%s \n","ATEN2011_break:leaving ...........");
+                return -1;
+        }
+
+        for (i = 0; i < NUM_URBS; ++i)
+	{
+                if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS)
+		{
+                        room += URB_TRANSFER_BUFFER_SIZE;
+                }
+        }
+
+        dbg("%s - returns %d", __FUNCTION__, room);
+        return (room);
+
+}
+
+
+/*****************************************************************************
+ * ATEN2011_chars_in_buffer
+ *	this function is called by the tty driver when it wants to know how many
+ *	bytes of data we currently have outstanding in the port (data that has
+ *	been written, but hasn't made it out the port yet)
+ *	If successful, we return the number of bytes left to be written in the
+ *	system,
+ *	Otherwise we return a negative error number.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_chars_in_buffer(struct tty_struct *tty)
+#else
+static int ATEN2011_chars_in_buffer(struct usb_serial_port *port)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+    struct usb_serial_port *port = tty->driver_data;
+#endif
+	int i;
+    	int chars = 0;
+ 	struct ATENINTL_port *ATEN2011_port;
+
+	//DPRINTK("%s \n"," ATEN2011_chars_in_buffer:entering ...........");
+
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return -1;
+	}
+
+        ATEN2011_port = ATEN2011_get_port_private(port);
+        if (ATEN2011_port == NULL)
+        {
+                DPRINTK("%s \n","ATEN2011_break:leaving ...........");
+                return -1;
+        }
+
+    	for (i = 0; i < NUM_URBS; ++i)
+    	{
+        	if (ATEN2011_port->write_urb_pool[i]->status == -EINPROGRESS)
+	    	{
+                	chars += URB_TRANSFER_BUFFER_SIZE;
+            	}
+    	}
+    	dbg("%s - returns %d", __FUNCTION__, chars);
+    	return (chars);
+
+}
+
+
+/*****************************************************************************
+ * SerialWrite
+ *	this function is called by the tty driver when data should be written to
+ *	the port.
+ *	If successful, we return the number of bytes written, otherwise we
+ *      return a negative error number.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count)
+#else
+static int ATEN2011_write (struct usb_serial_port *port, const unsigned char *data, int count)
+#endif
+{
+	int status;
+	int i;
+	int bytes_sent = 0;
+	int transfer_size;
+	int from_user=0;
+	int minor;
+
+	struct ATENINTL_port *ATEN2011_port;
+	struct usb_serial *serial;
+	struct ATENINTL_serial *ATEN2011_serial;
+	struct urb    *urb;
+	//__u16 Data;
+	const unsigned char *current_position = data;
+	unsigned char * data1;
+	DPRINTK("%s \n","entering ...........");
+	//DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR);
+
+	#ifdef NOTATEN2011
+	Data = 0x00;
+        status=0;
+        status = ATEN2011_get_Uart_Reg(port,LINE_CONTROL_REGISTER,&Data);
+	ATEN2011_port->shadowLCR = Data;
+	DPRINTK("ATEN2011_write: LINE_CONTROL_REGISTER is %x\n",Data);
+	DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR);
+
+	//Data = 0x03;
+        //status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+        //ATEN2011_port->shadowLCR=Data;//Need to add later
+
+        Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80
+        status = 0;
+        status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+
+	//Data = 0x0c;
+        //status = ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data);
+        Data = 0x00;
+        status=0;
+        status = ATEN2011_get_Uart_Reg(port,DIVISOR_LATCH_LSB,&Data);
+	DPRINTK("ATEN2011_write:DLL value is %x\n",Data);
+
+        Data = 0x0;
+        status=0;
+        status = ATEN2011_get_Uart_Reg(port,DIVISOR_LATCH_MSB,&Data);
+	DPRINTK("ATEN2011_write:DLM value is %x\n",Data);
+
+        Data = Data & ~SERIAL_LCR_DLAB;
+	DPRINTK("ATEN2011_write: ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR);
+        status = 0;
+        status = ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+	#endif
+
+	if (ATEN2011_port_paranoia_check (port, __FUNCTION__))
+	{
+		DPRINTK("%s","Port Paranoia failed \n");
+		return -1;
+	}
+
+	serial = port->serial;
+	if (ATEN2011_serial_paranoia_check (serial, __FUNCTION__))
+	{
+		DPRINTK("%s","Serial Paranoia failed \n");
+		return -1;
+	}
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+	if(ATEN2011_port==NULL)
+	{
+		DPRINTK("%s","ATEN2011_port is NULL\n");
+		return -1;
+	}
+
+	ATEN2011_serial =ATEN2011_get_serial_private(serial);
+	if(ATEN2011_serial==NULL)
+	{
+		DPRINTK("%s","ATEN2011_serial is NULL \n");
+		return -1;
+	}
+
+
+        	/* try to find a free urb in the list */
+        	urb = NULL;
+
+        	for (i = 0; i < NUM_URBS; ++i)
+		{
+                	if (ATEN2011_port->write_urb_pool[i]->status != -EINPROGRESS)
+			{
+                        	urb = ATEN2011_port->write_urb_pool[i];
+				DPRINTK("\nURB:%d",i);
+                        	break;
+                	}
+        	}
+
+	        if (urb == NULL)
+		{
+                	dbg("%s - no more free urbs", __FUNCTION__);
+                	goto exit;
+        	}
+
+        	if (urb->transfer_buffer == NULL)
+		{
+          	urb->transfer_buffer = kmalloc (URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
+
+                	if (urb->transfer_buffer == NULL)
+			{
+                        	err("%s no more kernel memory...", __FUNCTION__);
+                        	goto exit;
+                	}
+        	}
+        	transfer_size = min (count, URB_TRANSFER_BUFFER_SIZE);
+
+        	if (from_user)
+		{
+                	if (copy_from_user (urb->transfer_buffer, current_position, transfer_size)) 	{
+                        	bytes_sent = -EFAULT;
+	                       	goto exit;
+            		}
+        	}
+		else
+		{
+                	memcpy (urb->transfer_buffer, current_position, transfer_size);
+        	}
+        	//usb_serial_debug_data (__FILE__, __FUNCTION__, transfer_size, urb->transfer_buffer);
+
+		/* fill urb with data and submit  */
+	minor = port->serial->minor;
+	if (minor == SERIAL_TTY_NO_MINOR);
+		minor = 0;
+	if((ATEN2011_serial->ATEN2011_spectrum_2or4ports==2)&&(((__u16)port->number - (__u16)(minor)) != 0))
+        {
+                usb_fill_bulk_urb (urb,
+                 ATEN2011_serial->serial->dev,
+                 usb_sndbulkpipe(ATEN2011_serial->serial->dev,
+                 (port->bulk_out_endpointAddress)+2),
+                 urb->transfer_buffer,
+                 transfer_size,
+                 ATEN2011_bulk_out_data_callback,
+                 ATEN2011_port);
+        }
+        else
+
+
+
+           	usb_fill_bulk_urb (urb,
+		 ATEN2011_serial->serial->dev,
+		 usb_sndbulkpipe(ATEN2011_serial->serial->dev,
+		 port->bulk_out_endpointAddress),
+		 urb->transfer_buffer,
+		 transfer_size,
+		 ATEN2011_bulk_out_data_callback,
+		 ATEN2011_port);
+
+	data1=urb->transfer_buffer;
+	DPRINTK("\nbulkout endpoint is %d",port->bulk_out_endpointAddress);
+	//for(i=0;i < urb->actual_length;i++)
+	//	DPRINTK("Data is %c\n ",data1[i]);
+
+        	/* send it down the pipe */
+        	status = usb_submit_urb(urb,GFP_ATOMIC);
+
+        	if (status)
+		{
+                	err("%s - usb_submit_urb(write bulk) failed with status = %d", __FUNCTION__, status);
+                	bytes_sent = status;
+			goto exit;
+        	}
+        	bytes_sent = transfer_size;
+    	 	ATEN2011_port->icount.tx += transfer_size;
+		DPRINTK("ATEN2011_port->icount.tx is %d:\n",ATEN2011_port->icount.tx);
+exit:
+
+	return bytes_sent;
+
+}
+
+
+/*****************************************************************************
+ * SerialThrottle
+ *	this function is called by the tty driver when it wants to stop the data
+ *	being read from the port.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_throttle(struct tty_struct *tty)
+#else
+static void ATEN2011_throttle(struct usb_serial_port *port)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#else
+	struct tty_struct *tty;
+#endif
+	struct ATENINTL_port *ATEN2011_port;
+	int status;
+
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return;
+	}
+
+	DPRINTK("- port %d\n", port->number);
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if (ATEN2011_port == NULL)
+		return;
+
+	if (!ATEN2011_port->open)
+	{
+		DPRINTK("%s\n","port not opened");
+		return;
+	}
+
+	DPRINTK("%s","Entering .......... \n");
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = port->tty;
+#endif
+	if (!tty)
+	{
+		dbg ("%s - no tty available", __FUNCTION__);
+		return;
+	}
+
+	/* if we are implementing XON/XOFF, send the stop character */
+	if (I_IXOFF(tty))
+	{
+		unsigned char stop_char = STOP_CHAR(tty);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		status = ATEN2011_write(tty, port, &stop_char, 1); //FC4
+#else
+		status = ATEN2011_write(port, &stop_char, 1); //FC4
+#endif
+		if (status <= 0)
+		{
+			return;
+		}
+	}
+
+	/* if we are implementing RTS/CTS, toggle that line */
+	if (tty->termios->c_cflag & CRTSCTS)
+	{
+		ATEN2011_port->shadowMCR &= ~MCR_RTS;
+		status=0;
+		status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,ATEN2011_port->shadowMCR);
+
+		if (status < 0)
+		{
+			return;
+		}
+	}
+
+	return;
+}
+
+
+/*****************************************************************************
+ * ATEN2011_unthrottle
+ *	this function is called by the tty driver when it wants to resume the data
+ *	being read from the port (called after SerialThrottle is called)
+ *****************************************************************************/
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_unthrottle (struct tty_struct *tty)
+#else
+static void ATEN2011_unthrottle (struct usb_serial_port *port)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#else
+	struct tty_struct *tty;
+#endif
+	int status;
+	struct ATENINTL_port *ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return;
+	}
+
+	if (ATEN2011_port == NULL)
+		return;
+
+	if (!ATEN2011_port->open) {
+		dbg("%s - port not opened", __FUNCTION__);
+		return;
+	}
+
+	DPRINTK("%s","Entering .......... \n");
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = port->tty;
+#endif
+	if (!tty)
+	{
+		dbg ("%s - no tty available", __FUNCTION__);
+		return;
+	}
+
+	/* if we are implementing XON/XOFF, send the start character */
+	if (I_IXOFF(tty))
+	{
+		unsigned char start_char = START_CHAR(tty);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+		status = ATEN2011_write (tty, port, &start_char, 1); //FC4
+#else
+		status = ATEN2011_write (port, &start_char, 1); //FC4
+#endif
+		if (status <= 0)
+		{
+			return;
+		}
+	}
+
+	/* if we are implementing RTS/CTS, toggle that line */
+	if (tty->termios->c_cflag & CRTSCTS)
+	{
+		ATEN2011_port->shadowMCR |= MCR_RTS;
+		status=0;
+		status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,ATEN2011_port->shadowMCR);
+		if (status < 0)
+		{
+			return;
+		}
+	}
+
+	return;
+}
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file)
+#else
+static int ATEN2011_tiocmget(struct usb_serial_port *port, struct file *file)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#endif
+        //struct ti_port *tport = usb_get_serial_port_data(port);
+	struct ATENINTL_port *ATEN2011_port;
+        unsigned int result;
+        __u16 msr;
+        __u16 mcr;
+        //unsigned int mcr;
+	int status=0;
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+        DPRINTK("%s - port %d", __FUNCTION__, port->number);
+
+        if (ATEN2011_port == NULL)
+                return -ENODEV;
+
+	status=ATEN2011_get_Uart_Reg(port,MODEM_STATUS_REGISTER,&msr);
+	status=ATEN2011_get_Uart_Reg(port,MODEM_CONTROL_REGISTER,&mcr);
+//        mcr = ATEN2011_port->shadowMCR;
+// COMMENT2: the Fallowing three line are commented for updating only MSR values
+        result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
+                | ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
+                | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0)
+         	| ((msr & ATEN2011_MSR_CTS) ? TIOCM_CTS : 0)
+                | ((msr & ATEN2011_MSR_CD) ? TIOCM_CAR : 0)
+                | ((msr & ATEN2011_MSR_RI) ? TIOCM_RI : 0)
+                | ((msr & ATEN2011_MSR_DSR) ? TIOCM_DSR : 0);
+
+        DPRINTK("%s - 0x%04X", __FUNCTION__, result);
+
+        return result;
+}
+
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
+        unsigned int set, unsigned int clear)
+#else
+static int ATEN2011_tiocmset(struct usb_serial_port *port, struct file *file,
+        unsigned int set, unsigned int clear)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#endif
+	struct ATENINTL_port *ATEN2011_port;
+        //struct ti_port *tport = usb_get_serial_port_data(port);
+        unsigned int mcr;
+	unsigned int status;
+
+        DPRINTK("%s - port %d", __FUNCTION__, port->number);
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if (ATEN2011_port == NULL)
+                return -ENODEV;
+
+
+
+         mcr = ATEN2011_port->shadowMCR;
+        if (clear & TIOCM_RTS)
+                mcr &= ~MCR_RTS;
+        if (clear & TIOCM_DTR)
+                mcr &= ~MCR_DTR;
+        if (clear & TIOCM_LOOP)
+                mcr &= ~MCR_LOOPBACK;
+
+        if (set & TIOCM_RTS)
+                mcr |= MCR_RTS;
+        if (set & TIOCM_DTR)
+                mcr |= MCR_DTR;
+        if (set & TIOCM_LOOP)
+                mcr |= MCR_LOOPBACK;
+
+         ATEN2011_port->shadowMCR = mcr;
+
+        status=0;
+        status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,mcr);
+        if(status <0)
+        {
+                DPRINTK("setting MODEM_CONTROL_REGISTER Failed\n");
+                return -1;
+        }
+
+        return 0;
+}
+
+
+
+
+
+
+
+/*****************************************************************************
+ * SerialSetTermios
+ *	this function is called by the tty driver when it wants to change the termios structure
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios)
+#else
+static void ATEN2011_set_termios(struct usb_serial_port *port, struct ktermios *old_termios)
+#endif
+{
+	int status;
+	unsigned int cflag;
+	struct usb_serial *serial;
+	struct ATENINTL_port *ATEN2011_port;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	struct tty_struct *tty;
+#endif
+	DPRINTK("ATEN2011_set_termios: START\n");
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return;
+	}
+
+	serial = port->serial;
+
+	if(ATEN2011_serial_paranoia_check(serial,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid Serial \n");
+		return;
+	}
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+
+	if (ATEN2011_port == NULL)
+		return;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = port->tty;
+
+	if (!port->tty || !port->tty->termios)
+	{
+		dbg ("%s - no tty or termios", __FUNCTION__);
+		return;
+	}
+#endif
+
+	if (!ATEN2011_port->open)
+	{
+		dbg("%s - port not opened", __FUNCTION__);
+		return;
+	}
+
+	DPRINTK("%s\n","setting termios - ");
+
+	cflag = tty->termios->c_cflag;
+
+	if (!cflag)
+	{
+           DPRINTK("%s %s\n",__FUNCTION__,"cflag is NULL");
+	   return;
+	}
+
+	/* check that they really want us to change something */
+	if (old_termios)
+	{
+		if ((cflag == old_termios->c_cflag) &&
+		    (RELEVANT_IFLAG(tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag)))
+		{
+			DPRINTK("%s\n","Nothing to change");
+			return;
+		}
+	}
+
+	dbg("%s - clfag %08x iflag %08x", __FUNCTION__,
+	    tty->termios->c_cflag,
+	    RELEVANT_IFLAG(tty->termios->c_iflag));
+
+	if (old_termios)
+	{
+		dbg("%s - old clfag %08x old iflag %08x", __FUNCTION__,
+		    old_termios->c_cflag,
+		    RELEVANT_IFLAG(old_termios->c_iflag));
+	}
+
+	dbg("%s - port %d", __FUNCTION__, port->number);
+
+	/* change the port settings to the new ones specified */
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	ATEN2011_change_port_settings(tty, ATEN2011_port, old_termios);
+#else
+	ATEN2011_change_port_settings(ATEN2011_port, old_termios);
+#endif
+
+	if(!ATEN2011_port->read_urb)
+	{
+		DPRINTK("%s","URB KILLED !!!!!\n");
+		return;
+	}
+
+	if(ATEN2011_port->read_urb->status!=-EINPROGRESS)
+	{
+		ATEN2011_port->read_urb->dev = serial->dev;
+	 	status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
+		if (status)
+		{
+			DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status);
+		}
+	}
+	return;
+}
+
+/*
+static void ATEN2011_break_ctl( struct usb_serial_port *port, int break_state )
+{
+        //struct usb_serial *serial = port->serial;
+
+//        if (BSA_USB_CMD(BELKIN_SA_SET_BREAK_REQUEST, break_state ? 1 : 0) < 0)
+  //              err("Set break_ctl %d", break_state);
+}
+*/
+
+
+
+/*****************************************************************************
+ * get_lsr_info - get line status register info
+ *
+ * Purpose: Let user call ioctl() to get info when the UART physically
+ * 	    is emptied.  On bus types like RS485, the transmitter must
+ * 	    release the bus after transmitting. This must be done when
+ * 	    the transmit shift register is empty, not be done when the
+ * 	    transmit holding register is empty.  This functionality
+ * 	    allows an RS485 driver to be written in user space.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int get_lsr_info(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, unsigned int *value)
+#else
+static int get_lsr_info(struct ATENINTL_port *ATEN2011_port, unsigned int *value)
+#endif
+{
+	int count;
+	unsigned int result = 0;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+        count = ATEN2011_chars_in_buffer(tty);
+#else
+        count = ATEN2011_chars_in_buffer(ATEN2011_port->port);
+#endif
+        if(count == 0)
+	{
+		dbg("%s -- Empty", __FUNCTION__);
+		result = TIOCSER_TEMT;
+	}
+
+	if (copy_to_user(value, &result, sizeof(int)))
+		return -EFAULT;
+	return 0;
+}
+
+/*****************************************************************************
+ * get_number_bytes_avail - get number of bytes available
+ *
+ * Purpose: Let user call ioctl to get the count of number of bytes available.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int get_number_bytes_avail(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, unsigned int *value)
+#else
+static int get_number_bytes_avail(struct ATENINTL_port *ATEN2011_port, unsigned int *value)
+#endif
+{
+	unsigned int result = 0;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	struct tty_struct *tty = ATEN2011_port->port->tty;
+#endif
+
+	if (!tty)
+		return -ENOIOCTLCMD;
+
+	result = tty->read_cnt;
+
+	dbg("%s(%d) = %d", __FUNCTION__,  ATEN2011_port->port->number, result);
+	if (copy_to_user(value, &result, sizeof(int)))
+		return -EFAULT;
+
+	return -ENOIOCTLCMD;
+}
+
+
+/*****************************************************************************
+ * set_modem_info
+ *      function to set modem info
+ *****************************************************************************/
+
+static int set_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int cmd, unsigned int *value)
+{
+	unsigned int mcr ;
+	unsigned int arg;
+	__u16 Data;
+	int status;
+	struct usb_serial_port *port;
+
+	if (ATEN2011_port == NULL)
+		return -1;
+
+
+	port = (struct usb_serial_port*)ATEN2011_port->port;
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return -1;
+	}
+
+	mcr = ATEN2011_port->shadowMCR;
+
+	if (copy_from_user(&arg, value, sizeof(int)))
+		return -EFAULT;
+
+	switch (cmd) {
+		case TIOCMBIS:
+			if (arg & TIOCM_RTS)
+				mcr |= MCR_RTS;
+			if (arg & TIOCM_DTR)
+				mcr |= MCR_RTS;
+			if (arg & TIOCM_LOOP)
+				mcr |= MCR_LOOPBACK;
+			break;
+
+		case TIOCMBIC:
+			if (arg & TIOCM_RTS)
+				mcr &= ~MCR_RTS;
+			if (arg & TIOCM_DTR)
+				mcr &= ~MCR_RTS;
+			if (arg & TIOCM_LOOP)
+				mcr &= ~MCR_LOOPBACK;
+			break;
+
+		case TIOCMSET:
+			/* turn off the RTS and DTR and LOOPBACK
+			 * and then only turn on what was asked to */
+			mcr &=  ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK);
+			mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0);
+			mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0);
+			mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0);
+			break;
+	}
+
+	ATEN2011_port->shadowMCR = mcr;
+
+	Data = ATEN2011_port->shadowMCR;
+	status=0;
+	status = ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+	if(status <0)
+	{
+		DPRINTK("setting MODEM_CONTROL_REGISTER Failed\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+/*****************************************************************************
+ * get_modem_info
+ *      function to get modem info
+ *****************************************************************************/
+
+static int get_modem_info(struct ATENINTL_port *ATEN2011_port, unsigned int *value)
+{
+	unsigned int result = 0;
+	__u16 msr;
+	unsigned int mcr = ATEN2011_port->shadowMCR;
+	int status=0;
+	status=ATEN2011_get_Uart_Reg(ATEN2011_port->port,MODEM_STATUS_REGISTER,&msr);
+	result = ((mcr & MCR_DTR)	? TIOCM_DTR: 0)	  /* 0x002 */
+		  | ((mcr & MCR_RTS)	? TIOCM_RTS: 0)   /* 0x004 */
+		  | ((msr & ATEN2011_MSR_CTS)	? TIOCM_CTS: 0)   /* 0x020 */
+		  | ((msr & ATEN2011_MSR_CD)	? TIOCM_CAR: 0)   /* 0x040 */
+		  | ((msr & ATEN2011_MSR_RI)	? TIOCM_RI:  0)   /* 0x080 */
+		  | ((msr & ATEN2011_MSR_DSR)	? TIOCM_DSR: 0);  /* 0x100 */
+
+
+	dbg("%s -- %x", __FUNCTION__, result);
+
+	if (copy_to_user(value, &result, sizeof(int)))
+		return -EFAULT;
+	return 0;
+}
+
+/*****************************************************************************
+ * get_serial_info
+ *      function to get information about serial port
+ *****************************************************************************/
+
+static int get_serial_info(struct ATENINTL_port *ATEN2011_port, struct serial_struct * retinfo)
+{
+	struct serial_struct tmp;
+
+	if (ATEN2011_port == NULL)
+		return -1;
+
+
+	if (!retinfo)
+		return -EFAULT;
+
+	memset(&tmp, 0, sizeof(tmp));
+
+	tmp.type		= PORT_16550A;
+	tmp.line		= ATEN2011_port->port->serial->minor;
+ 	if (tmp.line == SERIAL_TTY_NO_MINOR)
+	    tmp.line = 0;
+	tmp.port		= ATEN2011_port->port->number;
+	tmp.irq			= 0;
+	tmp.flags		= ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
+        tmp.xmit_fifo_size      = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
+	tmp.baud_base		= 9600;
+	tmp.close_delay		= 5*HZ;
+	tmp.closing_wait	= 30*HZ;
+
+
+	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
+		return -EFAULT;
+	return 0;
+}
+
+/*****************************************************************************
+ * SerialIoctl
+ *	this function handles any ioctl calls to the driver
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
+#else
+static int ATEN2011_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
+#endif
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+	struct usb_serial_port *port = tty->driver_data;
+#else
+	struct tty_struct *tty;
+#endif
+	struct ATENINTL_port *ATEN2011_port;
+	struct async_icount cnow;
+	struct async_icount cprev;
+	struct serial_icounter_struct icount;
+	int ATENret=0;
+	//int retval;
+	//struct tty_ldisc *ld;
+
+	//printk("%s - port %d, cmd = 0x%x\n", __FUNCTION__, port->number, cmd);
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return -1;
+	}
+
+	ATEN2011_port = ATEN2011_get_port_private(port);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = ATEN2011_port->port->tty;
+#endif
+
+	if (ATEN2011_port == NULL)
+		return -1;
+
+	dbg("%s - port %d, cmd = 0x%x", __FUNCTION__, port->number, cmd);
+
+	switch (cmd)
+	{
+                /* return number of bytes available */
+
+		case TIOCINQ:
+			dbg("%s (%d) TIOCINQ", __FUNCTION__,  port->number);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+			return get_number_bytes_avail(tty, ATEN2011_port, (unsigned int *) arg);
+#else
+			return get_number_bytes_avail(ATEN2011_port, (unsigned int *) arg);
+#endif
+			break;
+
+		case TIOCOUTQ:
+			dbg("%s (%d) TIOCOUTQ", __FUNCTION__,  port->number);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+			return put_user(ATEN2011_chars_in_buffer(tty),
+					(int __user *) arg);
+#else
+			return put_user(tty->driver->ops->chars_in_buffer ?
+					tty->driver->ops->chars_in_buffer(tty) : 0,
+					(int __user *) arg);
+#endif
+			break;
+
+		/*  //2.6.17 block
+		case TCFLSH:
+			retval = tty_check_change(tty);
+			if (retval)
+				return retval;
+
+			ld = tty_ldisc_ref(tty);
+			switch (arg) {
+				case TCIFLUSH:
+					if (ld && ld->flush_buffer)
+						ld->flush_buffer(tty);
+					break;
+				case TCIOFLUSH:
+					if (ld && ld->flush_buffer)
+						ld->flush_buffer(tty);
+					// fall through
+				case TCOFLUSH:
+					if (tty->driver->flush_buffer)
+						tty->driver->flush_buffer(tty);
+					break;
+				default:
+					tty_ldisc_deref(ld);
+					return -EINVAL;
+			}
+			tty_ldisc_deref(ld);
+			return 0;
+		*/
+		case TIOCSERGETLSR:
+			dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__,  port->number);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+			return get_lsr_info(tty, ATEN2011_port, (unsigned int *) arg);
+#else
+			return get_lsr_info(ATEN2011_port, (unsigned int *) arg);
+#endif
+			return 0;
+
+		case TIOCMBIS:
+		case TIOCMBIC:
+		case TIOCMSET:
+			dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__,  port->number);
+	//	printk("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__,  port->number);
+			ATENret=set_modem_info(ATEN2011_port, cmd, (unsigned int *) arg);
+	//		printk(" %s: ret:%d\n",__FUNCTION__,ATENret);
+			return ATENret;
+
+		case TIOCMGET:
+			dbg("%s (%d) TIOCMGET", __FUNCTION__,  port->number);
+			return get_modem_info(ATEN2011_port, (unsigned int *) arg);
+
+		case TIOCGSERIAL:
+			dbg("%s (%d) TIOCGSERIAL", __FUNCTION__,  port->number);
+			return get_serial_info(ATEN2011_port, (struct serial_struct *) arg);
+
+		case TIOCSSERIAL:
+			dbg("%s (%d) TIOCSSERIAL", __FUNCTION__,  port->number);
+			break;
+
+		case TIOCMIWAIT:
+			dbg("%s (%d) TIOCMIWAIT", __FUNCTION__,  port->number);
+			cprev = ATEN2011_port->icount;
+			while (1) {
+				//interruptible_sleep_on(&ATEN2011_port->delta_msr_wait);
+				// ATEN2011_port->delta_msr_cond=0;
+		                //wait_event_interruptible(ATEN2011_port->delta_msr_wait,(ATEN2011_port->delta_msr_cond==1));
+
+				/* see if a signal did it */
+				if (signal_pending(current))
+					return -ERESTARTSYS;
+				cnow = ATEN2011_port->icount;
+				if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
+				    cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
+					return -EIO; /* no change => error */
+				if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+				    ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+				    ((arg & TIOCM_CD)  && (cnow.dcd != cprev.dcd)) ||
+				    ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
+					return 0;
+				}
+				cprev = cnow;
+			}
+			/* NOTREACHED */
+			break;
+
+		case TIOCGICOUNT:
+			cnow = ATEN2011_port->icount;
+			icount.cts = cnow.cts;
+			icount.dsr = cnow.dsr;
+			icount.rng = cnow.rng;
+			icount.dcd = cnow.dcd;
+			icount.rx = cnow.rx;
+			icount.tx = cnow.tx;
+			icount.frame = cnow.frame;
+			icount.overrun = cnow.overrun;
+			icount.parity = cnow.parity;
+			icount.brk = cnow.brk;
+			icount.buf_overrun = cnow.buf_overrun;
+
+			dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __FUNCTION__,  port->number, icount.rx, icount.tx );
+			if (copy_to_user((void *)arg, &icount, sizeof(icount)))
+				return -EFAULT;
+			return 0;
+
+		case TIOCEXBAUD:
+			return 0;
+		default:
+				break;
+	}
+
+	return -ENOIOCTLCMD;
+}
+
+
+/*****************************************************************************
+ * ATEN2011_send_cmd_write_baud_rate
+ *	this function sends the proper command to change the baud rate of the
+ *	specified port.
+ *****************************************************************************/
+
+static int ATEN2011_send_cmd_write_baud_rate (struct ATENINTL_port *ATEN2011_port, int baudRate)
+{
+	int divisor = 0;
+	int status;
+	__u16 Data;
+	unsigned char number ;
+	__u16 clk_sel_val;
+	struct usb_serial_port *port;
+	int minor;
+
+	if (ATEN2011_port == NULL)
+		return -1;
+
+	port = (struct usb_serial_port*)ATEN2011_port->port;
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return -1;
+	}
+
+	if(ATEN2011_serial_paranoia_check(port->serial,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid Serial \n");
+		return -1;
+	}
+
+
+	DPRINTK("%s","Entering .......... \n");
+
+        minor = ATEN2011_port->port->serial->minor;
+ 	if (minor == SERIAL_TTY_NO_MINOR)
+	    minor = 0;
+	number = ATEN2011_port->port->number - minor;
+
+	dbg("%s - port = %d, baud = %d", __FUNCTION__, ATEN2011_port->port->number, baudRate);
+	//reset clk_uart_sel in spregOffset
+	if(baudRate >115200)
+	{
+		#ifdef HW_flow_control
+		//NOTE: need to see the pther register to modify
+		//setting h/w flow control bit to 1;
+		status=0;
+		//Data = ATEN2011_port->shadowMCR ;
+		Data = 0x2b;
+		ATEN2011_port->shadowMCR=Data;
+		status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+		if(status<0)
+		{
+			DPRINTK("Writing spreg failed in set_serial_baud\n");
+			return -1;
+		}
+		#endif
+
+	}
+	else
+	{
+		#ifdef HW_flow_control
+		//setting h/w flow control bit to 0;
+		status=0;
+		//Data = ATEN2011_port->shadowMCR ;
+		Data = 0xb;
+		ATEN2011_port->shadowMCR=Data;
+		status=ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+		if(status<0)
+		{
+			DPRINTK("Writing spreg failed in set_serial_baud\n");
+			return -1;
+		}
+
+		#endif
+
+
+	}
+
+
+	if(1)//baudRate <= 115200)
+	{
+		clk_sel_val=0x0;
+		Data=0x0;
+		status=0;
+		status = ATEN2011_calc_baud_rate_divisor (baudRate, &divisor,&clk_sel_val);
+		status= ATEN2011_get_reg_sync(port,ATEN2011_port->SpRegOffset,&Data);
+		if(status<0)
+		{
+			DPRINTK("reading spreg failed in set_serial_baud\n");
+			return -1;
+		}
+		Data = (Data & 0x8f)|clk_sel_val;
+		status=0;
+		status= ATEN2011_set_reg_sync(port,ATEN2011_port->SpRegOffset,Data);
+		if(status<0)
+		{
+			DPRINTK("Writing spreg failed in set_serial_baud\n");
+			return -1;
+		}
+       		 /* Calculate the Divisor */
+
+
+		if (status)
+		{
+			err("%s - bad baud rate", __FUNCTION__);
+			DPRINTK("%s\n","bad baud rate");
+			return status;
+		}
+	        /* Enable access to divisor latch */
+	        Data = ATEN2011_port->shadowLCR | SERIAL_LCR_DLAB;
+	        ATEN2011_port->shadowLCR  = Data;
+		ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+
+		/* Write the divisor */
+		Data = LOW8 (divisor);//:  commented to test
+		DPRINTK("set_serial_baud Value to write DLL is %x\n",Data);
+		ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_LSB,Data);
+
+		Data = HIGH8 (divisor); //:  commented to test
+		DPRINTK("set_serial_baud Value to write DLM is %x\n",Data);
+		ATEN2011_set_Uart_Reg(port,DIVISOR_LATCH_MSB,Data);
+
+	        /* Disable access to divisor latch */
+	        Data = ATEN2011_port->shadowLCR & ~SERIAL_LCR_DLAB;
+	        ATEN2011_port->shadowLCR = Data;
+		ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+
+	}
+
+	return status;
+}
+
+
+
+/*****************************************************************************
+ * ATEN2011_calc_baud_rate_divisor
+ *	this function calculates the proper baud rate divisor for the specified
+ *	baud rate.
+ *****************************************************************************/
+static int ATEN2011_calc_baud_rate_divisor (int baudRate, int *divisor,__u16 *clk_sel_val)
+{
+	//int i;
+	//__u16 custom,round1, round;
+
+	dbg("%s - %d", __FUNCTION__, baudRate);
+
+		if(baudRate <=115200)
+		{
+			*divisor = 115200/baudRate;
+			*clk_sel_val = 0x0;
+		}
+	 	if((baudRate > 115200) && (baudRate <= 230400))
+		{
+			*divisor = 230400/baudRate;
+			*clk_sel_val=0x10;
+		}
+	 	else if((baudRate > 230400) && (baudRate <= 403200))
+		{
+			*divisor = 403200/baudRate;
+			*clk_sel_val=0x20;
+		}
+	 	else if((baudRate > 403200) && (baudRate <= 460800))
+		{
+			*divisor = 460800/baudRate;
+			*clk_sel_val=0x30;
+		}
+	 	else if((baudRate > 460800) && (baudRate <= 806400))
+		{
+			*divisor = 806400/baudRate;
+			*clk_sel_val=0x40;
+		}
+	 	else if((baudRate >806400) && (baudRate <= 921600))
+		{
+			*divisor = 921600/baudRate;
+			*clk_sel_val=0x50;
+		}
+	 	else if((baudRate > 921600) && (baudRate <= 1572864))
+		{
+			*divisor = 1572864/baudRate;
+			*clk_sel_val=0x60;
+		}
+	 	else if((baudRate > 1572864) && (baudRate <= 3145728))
+		{
+			*divisor = 3145728/baudRate;
+			*clk_sel_val=0x70;
+		}
+	return 0;
+
+	#ifdef NOTATEN2011
+
+	for (i = 0; i < NUM_ENTRIES(ATEN2011_divisor_table); i++)
+	{
+		if ( ATEN2011_divisor_table[i].BaudRate == baudrate )
+		{
+			*divisor = ATEN2011_divisor_table[i].Divisor;
+			return 0;
+		}
+	}
+
+        /* After trying for all the standard baud rates    *
+         * Try calculating the divisor for this baud rate  */
+
+	if (baudrate > 75 &&  baudrate < 230400)
+	{
+		/* get the divisor */
+		custom = (__u16)(230400L  / baudrate);
+
+		/* Check for round off */
+		round1 = (__u16)(2304000L / baudrate);
+		round = (__u16)(round1 - (custom * 10));
+		if (round > 4) {
+			custom++;
+		}
+		*divisor = custom;
+
+		DPRINTK(" Baud %d = %d\n",baudrate, custom);
+		return 0;
+	}
+
+	DPRINTK("%s\n"," Baud calculation Failed...");
+	return -1;
+	#endif
+}
+
+
+
+/*****************************************************************************
+ * ATEN2011_change_port_settings
+ *	This routine is called to set the UART on the device to match
+ *      the specified new settings.
+ *****************************************************************************/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios)
+#else
+static void ATEN2011_change_port_settings(struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios)
+#endif
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	struct tty_struct *tty;
+#endif
+	int baud;
+	unsigned cflag;
+	unsigned iflag;
+	__u8 mask = 0xff;
+	__u8 lData;
+	__u8 lParity;
+	__u8 lStop;
+	int status;
+	__u16 Data;
+	struct usb_serial_port *port;
+	struct usb_serial *serial;
+
+	if (ATEN2011_port == NULL)
+		return ;
+
+	port = (struct usb_serial_port *)ATEN2011_port->port;
+
+	if(ATEN2011_port_paranoia_check(port,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid port \n");
+		return ;
+	}
+
+	if(ATEN2011_serial_paranoia_check(port->serial,__FUNCTION__) )
+	{
+		DPRINTK("%s","Invalid Serial \n");
+		return ;
+	}
+
+	serial = port->serial;
+
+	dbg("%s - port %d", __FUNCTION__, ATEN2011_port->port->number);
+
+	if ((!ATEN2011_port->open) && (!ATEN2011_port->openPending))
+	{
+		dbg("%s - port not opened", __FUNCTION__);
+		return;
+	}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
+	tty = ATEN2011_port->port->tty;
+#endif
+
+	if ((!tty) || (!tty->termios))
+	{
+		dbg("%s - no tty structures", __FUNCTION__);
+		return;
+	}
+
+	DPRINTK("%s","Entering .......... \n");
+
+	lData = LCR_BITS_8;
+	lStop = LCR_STOP_1;
+	lParity = LCR_PAR_NONE;
+
+	cflag = tty->termios->c_cflag;
+	iflag = tty->termios->c_iflag;
+
+	/* Change the number of bits */
+
+//COMMENT1: the below Line"if(cflag & CSIZE)" is added for the errors we get for serial loop data test i.e serial_loopback.pl -v
+	//if(cflag & CSIZE)
+	{
+	switch (cflag & CSIZE)
+	{
+		case CS5:	lData = LCR_BITS_5;
+				mask = 0x1f;
+			    	break;
+
+		case CS6:   	lData = LCR_BITS_6;
+				mask = 0x3f;
+			    	break;
+
+		case CS7:   	lData = LCR_BITS_7;
+				mask = 0x7f;
+			    	break;
+		default:
+		case CS8:   	lData = LCR_BITS_8;
+			    	break;
+	}
+	}
+	/* Change the Parity bit */
+	if (cflag & PARENB)
+	{
+		if (cflag & PARODD)
+		{
+			lParity = LCR_PAR_ODD;
+			dbg("%s - parity = odd", __FUNCTION__);
+		}
+		else
+		{
+			lParity = LCR_PAR_EVEN;
+			dbg("%s - parity = even", __FUNCTION__);
+		}
+
+	}
+	else
+	{
+		dbg("%s - parity = none", __FUNCTION__);
+	}
+
+	if(cflag & CMSPAR)
+	{
+		lParity = lParity | 0x20;
+	}
+
+	/* Change the Stop bit */
+	if (cflag & CSTOPB)
+	{
+		lStop = LCR_STOP_2;
+		dbg("%s - stop bits = 2", __FUNCTION__);
+	}
+	else
+	{
+		lStop = LCR_STOP_1;
+		dbg("%s - stop bits = 1", __FUNCTION__);
+	}
+
+
+	/* Update the LCR with the correct value */
+	ATEN2011_port->shadowLCR &= ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
+	ATEN2011_port->shadowLCR |= (lData | lParity | lStop);
+
+	ATEN2011_port->validDataMask = mask;
+	DPRINTK("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is %x\n",ATEN2011_port->shadowLCR);
+	/* Disable Interrupts */
+	Data = 0x00;
+	ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data);
+
+
+	Data = 0x00;
+	ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data);
+
+	Data = 0xcf;
+	ATEN2011_set_Uart_Reg(port,FIFO_CONTROL_REGISTER,Data);
+
+	/* Send the updated LCR value to the ATEN2011 */
+	Data = ATEN2011_port->shadowLCR;
+
+	ATEN2011_set_Uart_Reg(port,LINE_CONTROL_REGISTER,Data);
+
+
+        Data = 0x00b;
+        ATEN2011_port->shadowMCR = Data;
+	ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+        Data = 0x00b;
+	ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+
+	/* set up the MCR register and send it to the ATEN2011 */
+
+	ATEN2011_port->shadowMCR = MCR_MASTER_IE;
+	if (cflag & CBAUD)
+	{
+		ATEN2011_port->shadowMCR |= (MCR_DTR | MCR_RTS);
+	}
+
+
+	if (cflag & CRTSCTS)
+	{
+		ATEN2011_port->shadowMCR |= (MCR_XON_ANY);
+
+
+	}
+	else
+	{
+		ATEN2011_port->shadowMCR &= ~(MCR_XON_ANY);
+	}
+
+
+	Data = ATEN2011_port->shadowMCR;
+	ATEN2011_set_Uart_Reg(port,MODEM_CONTROL_REGISTER,Data);
+
+
+
+	/* Determine divisor based on baud rate */
+	baud = tty_get_baud_rate(tty);
+
+	if (!baud)
+	{
+		/* pick a default, any default... */
+        	DPRINTK("%s\n","Picked default baud...");
+		baud = 9600;
+	}
+
+
+	dbg("%s - baud rate = %d", __FUNCTION__, baud);
+	status = ATEN2011_send_cmd_write_baud_rate (ATEN2011_port, baud);
+
+	/* Enable Interrupts */
+	Data = 0x0c;
+	ATEN2011_set_Uart_Reg(port,INTERRUPT_ENABLE_REGISTER,Data);
+
+	if(ATEN2011_port->read_urb->status!=-EINPROGRESS)
+	{
+		ATEN2011_port->read_urb->dev = serial->dev;
+
+		status = usb_submit_urb(ATEN2011_port->read_urb, GFP_ATOMIC);
+
+		if (status)
+		{
+			DPRINTK(" usb_submit_urb(read bulk) failed, status = %d", status);
+		}
+	}
+	//wake_up(&ATEN2011_port->delta_msr_wait);
+    	//ATEN2011_port->delta_msr_cond=1;
+	DPRINTK("ATEN2011_change_port_settings ATEN2011_port->shadowLCR is End %x\n",ATEN2011_port->shadowLCR);
+
+	return;
+}
+
+
+static int ATEN2011_calc_num_ports(struct usb_serial *serial)
+{
+
+	__u16 Data=0x00;
+        int ret =0;
+	int ATEN2011_2or4ports;
+        ret = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),\
+	 ATEN_RDREQ,ATEN_RD_RTYPE,0,GPIO_REGISTER,&Data,VENDOR_READ_LENGTH,ATEN_WDR_TIMEOUT);
+
+ 	//printk("ATEN2011_calc_num_ports GPIO is %x\n",Data);
+
+
+/* ghostgum: here is where the problem appears to bet */
+/* Which of the following are needed? */
+/* Greg used the serial->type->num_ports=2 */
+/* But the code in the ATEN2011_open relies on serial->num_ports=2 */
+        if((Data&0x01)==0)
+        {
+                ATEN2011_2or4ports=2;
+                serial->type->num_ports=2;
+                serial->num_ports=2;
+        }
+        //else if(serial->interface->cur_altsetting->desc.bNumEndpoints == 9)
+        else
+        {
+                ATEN2011_2or4ports =4;
+                serial->type->num_ports=4;
+                serial->num_ports=4;
+
+        }
+
+	return ATEN2011_2or4ports;
+}
+
+
+/****************************************************************************
+ * ATEN2011_startup
+ ****************************************************************************/
+
+static int ATEN2011_startup (struct usb_serial *serial)
+{
+	struct ATENINTL_serial *ATEN2011_serial;
+	struct ATENINTL_port *ATEN2011_port;
+	struct usb_device *dev;
+	int i,status;
+	int minor;
+
+	__u16 Data;
+	DPRINTK("%s \n"," ATEN2011_startup :entering..........");
+
+	if(!serial)
+	{
+		DPRINTK("%s\n","Invalid Handler");
+		return -1;
+	}
+
+	dev = serial->dev;
+
+	DPRINTK("%s\n","Entering...");
+
+	/* create our private serial structure */
+	ATEN2011_serial = kzalloc (sizeof(struct ATENINTL_serial), GFP_KERNEL);
+	if (ATEN2011_serial == NULL)
+	{
+		err("%s - Out of memory", __FUNCTION__);
+		return -ENOMEM;
+	}
+
+	/* resetting the private structure field values to zero */
+	memset (ATEN2011_serial, 0, sizeof(struct ATENINTL_serial));
+
+	ATEN2011_serial->serial = serial;
+	//initilize status polling flag to FALSE
+	ATEN2011_serial->status_polling_started = FALSE;
+
+	ATEN2011_set_serial_private(serial,ATEN2011_serial);
+	ATEN2011_serial->ATEN2011_spectrum_2or4ports = ATEN2011_calc_num_ports(serial);
+	/* we set up the pointers to the endpoints in the ATEN2011_open *
+	 * function, as the structures aren't created yet.             */
+
+	/* set up port private structures */
+	for (i = 0; i < serial->num_ports; ++i)
+	{
+	        ATEN2011_port = kmalloc(sizeof(struct ATENINTL_port), GFP_KERNEL);
+		if (ATEN2011_port == NULL)
+		{
+			err("%s - Out of memory", __FUNCTION__);
+			ATEN2011_set_serial_private(serial,NULL);
+			kfree(ATEN2011_serial);
+			return -ENOMEM;
+		}
+		memset(ATEN2011_port, 0, sizeof(struct ATENINTL_port));
+
+
+	/* Initialize all port interrupt end point to port 0 int endpoint *
+	 * Our device has only one interrupt end point comman to all port */
+
+
+
+	//	serial->port[i]->interrupt_in_endpointAddress = serial->port[0]->interrupt_in_endpointAddress;
+
+
+		ATEN2011_port->port = serial->port[i];
+//
+			ATEN2011_set_port_private(serial->port[i],ATEN2011_port);
+
+
+		minor = serial->port[i] ->serial->minor;
+		if (minor == SERIAL_TTY_NO_MINOR)
+		    minor = 0;
+		ATEN2011_port->port_num=((serial->port[i]->number -  minor)+1);
+
+		ATEN2011_port->AppNum = (((__u16)serial->port[i]->number - \
+				(__u16)(minor))+1)<<8;
+
+		if(ATEN2011_port->port_num ==1)
+		{
+			ATEN2011_port->SpRegOffset =0x0;
+			ATEN2011_port->ControlRegOffset =0x1;
+			ATEN2011_port->DcrRegOffset =0x4 ;
+			//ATEN2011_port->ClkSelectRegOffset =  ;
+		}
+		else if((ATEN2011_port->port_num ==2)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4))
+		{
+			ATEN2011_port->SpRegOffset =0x8;
+			ATEN2011_port->ControlRegOffset =0x9;
+			ATEN2011_port->DcrRegOffset =0x16;
+			//ATEN2011_port->ClkSelectRegOffset =  ;
+		}
+		else if((ATEN2011_port->port_num ==2)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==2))
+		{
+			ATEN2011_port->SpRegOffset =0xa;
+			ATEN2011_port->ControlRegOffset =0xb;
+			ATEN2011_port->DcrRegOffset =0x19;
+			//ATEN2011_port->ClkSelectRegOffset =  ;
+		}
+		else if((ATEN2011_port->port_num ==3)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4))
+		{
+			ATEN2011_port->SpRegOffset =0xa;
+			ATEN2011_port->ControlRegOffset =0xb;
+			ATEN2011_port->DcrRegOffset =0x19;
+			//ATEN2011_port->ClkSelectRegOffset =  ;
+		}
+		else if((ATEN2011_port->port_num ==4)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports ==4))
+		{
+			ATEN2011_port->SpRegOffset =0xc;
+			ATEN2011_port->ControlRegOffset =0xd;
+			ATEN2011_port->DcrRegOffset =0x1c ;
+			//ATEN2011_port->ClkSelectRegOffset =  ;
+		}
+		ATEN2011_Dump_serial_port(ATEN2011_port);
+
+		ATEN2011_set_port_private(serial->port[i],ATEN2011_port);
+
+
+		//enable rx_disable bit in control register
+
+		status=ATEN2011_get_reg_sync(serial->port[i],ATEN2011_port->ControlRegOffset,&Data);
+		if(status<0) {
+	                DPRINTK("Reading ControlReg failed status-0x%x\n", status);
+	                break;
+	        }
+		else DPRINTK("ControlReg Reading success val is %x, status%d\n",Data,status);
+		Data |= 0x08;//setting driver done bit
+		Data |= 0x04;//sp1_bit to have cts change reflect in modem status reg
+
+		//Data |= 0x20; //rx_disable bit
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],ATEN2011_port->ControlRegOffset,Data);
+		if(status<0) {
+	                DPRINTK("Writing ControlReg failed(rx_disable) status-0x%x\n", status);
+	                break;
+	        }
+	        else DPRINTK("ControlReg Writing success(rx_disable) status%d\n",status);
+
+		//Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 and 0x24 in DCR3
+		Data = 0x01;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+0),Data);
+		if(status<0) {
+	                DPRINTK("Writing DCR0 failed status-0x%x\n", status);
+        	        break;
+	        }
+	        else DPRINTK("DCR0 Writing success status%d\n",status);
+
+		Data = 0x05;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+1),Data);
+		if(status<0) {
+	                DPRINTK("Writing DCR1 failed status-0x%x\n", status);
+	                break;
+	        }
+	        else DPRINTK("DCR1 Writing success status%d\n",status);
+
+		Data = 0x24;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],(__u16)(ATEN2011_port->DcrRegOffset+2),Data);
+		if(status<0) {
+	                DPRINTK("Writing DCR2 failed status-0x%x\n", status);
+	                break;
+	        }
+	        else DPRINTK("DCR2 Writing success status%d\n",status);
+
+		// write values in clkstart0x0 and clkmulti 0x20
+		Data = 0x0;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],CLK_START_VALUE_REGISTER,Data);
+		if(status<0) {
+	                DPRINTK("Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
+	                break;
+	        }
+	        else DPRINTK("CLK_START_VALUE_REGISTER Writing success status%d\n",status);
+
+
+		Data = 0x20;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],CLK_MULTI_REGISTER,Data);
+		if(status<0) {
+                        DPRINTK("Writing CLK_MULTI_REGISTER failed status-0x%x\n", status);
+                        break;
+                }
+        	else DPRINTK("CLK_MULTI_REGISTER Writing success status%d\n",status);
+
+
+		//write value 0x0 to scratchpad register
+		/*
+		if(RS485mode==0)
+			Data = 0xC0;
+		else
+			Data = 0x00;
+		status=0;
+		status=ATEN2011_set_Uart_Reg(serial->port[i],SCRATCH_PAD_REGISTER,Data);
+		if(status<0) {
+	                DPRINTK("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status);
+	                break;
+                }
+        	else DPRINTK("SCRATCH_PAD_REGISTER Writing success status%d\n",status);
+		*/
+
+	/*
+		//Threshold Registers
+		if(ATEN2011_serial->ATEN2011_spectrum_2or4ports==4)
+		{
+			Data = 0x00;
+			status=0;
+			status=ATEN2011_set_reg_sync(serial->port[i],\
+					(__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt),Data);
+			DPRINTK("THRESHOLD_VAL offset is%x\n", (__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt));
+			if(status<0) {
+	        		DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+	                	break;
+		        }
+		        else DPRINTK("THRESHOLD_VAL Writing success status%d\n",status);
+			ATEN2011_Thr_cnt++;
+
+			Data = 0x01;
+			status=0;
+			status=ATEN2011_set_reg_sync(serial->port[i],\
+			(__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt),Data);
+		DPRINTK("THRESHOLD_VAL offsetis%x\n",(__u16)(THRESHOLD_VAL_SP1_1+(__u16)ATEN2011_Thr_cnt));
+			if(status<0) {
+                	        DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+                        	break;
+	                }
+		        else DPRINTK("THRESHOLD_VAL Writing success status%d\n",status);
+			ATEN2011_Thr_cnt++;
+		}
+
+		else
+		{
+
+			if(ATEN2011_port->port_num==1)
+			{
+				Data = 0x00;
+		                status=0;
+	        	        status=ATEN2011_set_reg_sync(serial->port[i],\
+        	                        0x3f,Data);
+                		DPRINTK("THRESHOLD_VAL offset is 0x3f\n");
+		                if(status<0) {
+        	                DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+                	        break;
+				}
+				Data = 0x01;
+        	                status=0;
+                	        status=ATEN2011_set_reg_sync(serial->port[i],\
+                        	        0x40,Data);
+	                        DPRINTK("THRESHOLD_VAL offset is 0x40\n");
+        	                if(status<0) {
+                	        DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+                        	break;
+
+				}
+			}
+			else
+                        {
+	                        Data = 0x00;
+	                        status=0;
+	                        status=ATEN2011_set_reg_sync(serial->port[i],\
+        	                        0x43,Data);
+	                        DPRINTK("THRESHOLD_VAL offset is 0x43\n");
+	                        if(status<0) {
+        	                DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+                	        break;
+                        	}
+	                        Data = 0x01;
+        	                status=0;
+                	        status=ATEN2011_set_reg_sync(serial->port[i],\
+                        	        0x44,Data);
+	                        DPRINTK("THRESHOLD_VAL offset is 0x44\n");
+        	                if(status<0) {
+                	        DPRINTK("Writing THRESHOLD_VAL failed status-0x%x\n",status);
+	                        break;
+
+        	                }
+
+
+			}
+
+		}
+		*/
+		//Zero Length flag register
+		if((ATEN2011_port->port_num != 1)&&(ATEN2011_serial->ATEN2011_spectrum_2or4ports==2 ))
+		{
+
+		Data = 0xff;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[i],\
+			(__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)),Data);
+		DPRINTK("ZLIP offset%x\n",(__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)));
+		if(status<0) {
+                        DPRINTK("Writing ZLP_REG%d failed status-0x%x\n",i+2,status);
+                        break;
+                }
+	        else DPRINTK("ZLP_REG%d Writing success status%d\n",i+2,status);
+		}
+		else
+		{
+		Data = 0xff;
+                status=0;
+                status=ATEN2011_set_reg_sync(serial->port[i],\
+                        (__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)-0x1),Data);
+                DPRINTK("ZLIP offset%x\n",(__u16)(ZLP_REG1+((__u16)ATEN2011_port->port_num)-0x1));
+                if(status<0) {
+                        DPRINTK("Writing ZLP_REG%d failed status-0x%x\n",i+1,status);
+                        break;
+                }
+                else DPRINTK("ZLP_REG%d Writing success status%d\n",i+1,status);
+
+
+		}
+	ATEN2011_port->control_urb = usb_alloc_urb(0,GFP_ATOMIC);
+	ATEN2011_port->ctrl_buf = kmalloc(16,GFP_KERNEL);
+
+
+	}
+
+
+		ATEN2011_Thr_cnt=0;
+		//Zero Length flag enable
+		Data = 0x0f;
+		status=0;
+		status=ATEN2011_set_reg_sync(serial->port[0],ZLP_REG5,Data);
+		if(status<0) {
+	                       DPRINTK("Writing ZLP_REG5 failed status-0x%x\n",status);
+	                       return -1;
+                }
+	        else DPRINTK("ZLP_REG5 Writing success status%d\n",status);
+
+	/* setting configuration feature to one */
+	usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), (__u8)0x03, 0x00,0x01,0x00, 0x00, 0x00, 5*HZ);
+	ATEN2011_Thr_cnt =0 ;
+	return 0;
+}
+
+
+
+/****************************************************************************
+ * ATEN2011_shutdown
+ *	This function is called whenever the device is removed from the usb bus.
+ ****************************************************************************/
+
+static void ATEN2011_shutdown (struct usb_serial *serial)
+{
+	int i;
+	struct ATENINTL_port *ATEN2011_port;
+	DPRINTK("%s \n"," shutdown :entering..........");
+
+/* MATRIX  */
+	//ThreadState = 1;
+/* MATRIX  */
+
+	if(!serial)
+	{
+		DPRINTK("%s","Invalid Handler \n");
+		return;
+	}
+
+	/*	check for the ports to be closed,close the ports and disconnect		*/
+
+	/* free private structure allocated for serial port  *
+	 * stop reads and writes on all ports   	     */
+
+	for (i=0; i < serial->num_ports; ++i)
+	{
+		ATEN2011_port = ATEN2011_get_port_private(serial->port[i]);
+		kfree(ATEN2011_port->ctrl_buf);
+		usb_kill_urb(ATEN2011_port->control_urb);
+		kfree(ATEN2011_port);
+		ATEN2011_set_port_private(serial->port[i],NULL);
+	}
+
+	/* free private structure allocated for serial device */
+
+	kfree(ATEN2011_get_serial_private(serial));
+	ATEN2011_set_serial_private(serial,NULL);
+
+        DPRINTK("%s\n","Thank u :: ");
+
+}
+
+
+/* Inline functions to check the sanity of a pointer that is passed to us */
+static int ATEN2011_serial_paranoia_check (struct usb_serial *serial, const char *function)
+{
+        if (!serial) {
+                dbg("%s - serial == NULL", function);
+                return -1;
+        }
+//      if (serial->magic != USB_SERIAL_MAGIC) {
+//              dbg("%s - bad magic number for serial", function);
+//              return -1;
+//      }
+        if (!serial->type) {
+                dbg("%s - serial->type == NULL!", function);
+                return -1;
+        }
+
+        return 0;
+}
+static int ATEN2011_port_paranoia_check (struct usb_serial_port *port, const char *function)
+{
+        if (!port) {
+                dbg("%s - port == NULL", function);
+                return -1;
+        }
+//      if (port->magic != USB_SERIAL_PORT_MAGIC) {
+//              dbg("%s - bad magic number for port", function);
+//              return -1;
+//      }
+        if (!port->serial) {
+                dbg("%s - port->serial == NULL", function);
+                return -1;
+        }
+
+        return 0;
+}
+static struct usb_serial* ATEN2011_get_usb_serial (struct usb_serial_port *port, const char *function) {
+        /* if no port was specified, or it fails a paranoia check */
+        if (!port ||
+                ATEN2011_port_paranoia_check (port, function) ||
+                ATEN2011_serial_paranoia_check (port->serial, function)) {
+     /* then say that we don't have a valid usb_serial thing, which will                  * end up genrating -ENODEV return values */
+                return NULL;
+        }
+
+        return port->serial;
+}
+
+
+
+/****************************************************************************
+ * ATENINTL2011_init
+ *	This is called by the module subsystem, or on startup to initialize us
+ ****************************************************************************/
+ int __init ATENINTL2011_init(void)
+{
+	int retval;
+
+	DPRINTK("%s \n"," ATEN2011_init :entering..........");
+
+        /* Register with the usb serial */
+	retval = usb_serial_register (&ATENINTL2011_4port_device);
+
+	if(retval)
+		goto failed_port_device_register;
+
+/*	info(DRIVER_DESC " " DRIVER_VERSION); */
+ 	printk(KERN_INFO KBUILD_MODNAME ":"
+		DRIVER_DESC " " DRIVER_VERSION "\n");
+
+
+ 	/* Register with the usb */
+	retval = usb_register(&io_driver);
+
+	if (retval)
+		goto failed_usb_register;
+
+	if(retval == 0)
+	{
+		DPRINTK("%s\n","Leaving...");
+		return 0;
+	}
+
+
+failed_usb_register:
+	usb_serial_deregister(&ATENINTL2011_4port_device);
+
+failed_port_device_register:
+
+	return retval;
+}
+
+/****************************************************************************
+ * ATENINTL2011_exit
+ *	Called when the driver is about to be unloaded.
+ ****************************************************************************/
+void __exit ATENINTL2011_exit (void)
+{
+
+	DPRINTK("%s \n"," ATEN2011_exit :entering..........");
+
+	usb_deregister (&io_driver);
+
+	usb_serial_deregister (&ATENINTL2011_4port_device);
+
+	DPRINTK("%s\n","End...");
+}
+
+module_init(ATENINTL2011_init);
+module_exit(ATENINTL2011_exit);
+
+/* Module information */
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_LICENSE("GPL");
+
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+
diff --git a/drivers/staging/uc2322/aten2011.h b/drivers/staging/uc2322/aten2011.h
new file mode 100644
index 0000000..dc7fb7b
--- /dev/null
+++ b/drivers/staging/uc2322/aten2011.h
@@ -0,0 +1,383 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#if !defined(_ATEN_CIP_H_)
+#define	_ATEN_CIP_H_
+
+
+#define MAX_RS232_PORTS		2	/* Max # of RS-232 ports per device */
+
+#include <linux/version.h>
+
+/*
+ *  All typedef goes here
+ */
+
+
+/* typedefs that the insideout headers need */
+
+#ifndef TRUE
+	#define TRUE		(1)
+#endif
+
+#ifndef FALSE
+	#define FALSE		(0)
+#endif
+
+#ifndef LOW8
+	#define LOW8(val)	((unsigned char)(val & 0xff))
+#endif
+
+#ifndef HIGH8
+	#define HIGH8(val)	((unsigned char)((val & 0xff00) >> 8))
+#endif
+
+#ifndef NUM_ENTRIES
+	#define NUM_ENTRIES(x)	(sizeof(x)/sizeof((x)[0]))
+#endif
+
+#define MAX_SERIALNUMBER_LEN 	12
+
+/* The following table is used to map the USBx port number to
+ * the device serial number (or physical USB path), */
+
+#define MAX_ATENPORTS	2
+#define MAX_NAME_LEN	64
+
+#define RAID_REG1 	0x30
+#define RAID_REG2 	0x31
+
+#define ZLP_REG1  	0x3A      //Zero_Flag_Reg1    58
+#define ZLP_REG2  	0x3B      //Zero_Flag_Reg2    59
+#define ZLP_REG3  	0x3C      //Zero_Flag_Reg3    60
+#define ZLP_REG4  	0x3D      //Zero_Flag_Reg4    61
+#define ZLP_REG5  	0x3E      //Zero_Flag_Reg5    62
+
+#define THRESHOLD_VAL_SP1_1     0x3F
+#define THRESHOLD_VAL_SP1_2     0x40
+#define THRESHOLD_VAL_SP2_1     0x41
+#define THRESHOLD_VAL_SP2_2     0x42
+
+#define THRESHOLD_VAL_SP3_1     0x43
+#define THRESHOLD_VAL_SP3_2     0x44
+#define THRESHOLD_VAL_SP4_1     0x45
+#define THRESHOLD_VAL_SP4_2     0x46
+
+
+/* For higher baud Rates use TIOCEXBAUD */
+#define TIOCEXBAUD	0x5462
+
+#define BAUD_1152	0	/* 115200bps  * 1	*/
+#define BAUD_2304	1	/* 230400bps  * 2	*/
+#define BAUD_4032	2	/* 403200bps  * 3.5	*/
+#define BAUD_4608	3	/* 460800bps  * 4	*/
+#define BAUD_8064	4	/* 806400bps  * 7	*/
+#define BAUD_9216	5	/* 921600bps  * 8	*/
+
+#define CHASE_TIMEOUT		(5*HZ)		/* 5 seconds */
+#define OPEN_TIMEOUT		(5*HZ)		/* 5 seconds */
+#define COMMAND_TIMEOUT		(5*HZ)		/* 5 seconds */
+
+#ifndef SERIAL_MAGIC
+	#define SERIAL_MAGIC	0x6702
+#endif
+
+#define PORT_MAGIC		0x7301
+
+
+
+/* vendor id and device id defines */
+
+#define USB_VENDOR_ID_ATENINTL		0x0557
+#define ATENINTL_DEVICE_ID_2011		0x2011
+#define ATENINTL_DEVICE_ID_7820		0x7820
+
+/* Product information read from the ATENINTL. Provided for later upgrade */
+
+/* Interrupt Rotinue Defines	*/
+
+#define SERIAL_IIR_RLS      0x06
+#define SERIAL_IIR_RDA      0x04
+#define SERIAL_IIR_CTI      0x0c
+#define SERIAL_IIR_THR      0x02
+#define SERIAL_IIR_MS       0x00
+
+/*
+ *  Emulation of the bit mask on the LINE STATUS REGISTER.
+ */
+#define SERIAL_LSR_DR       0x0001
+#define SERIAL_LSR_OE       0x0002
+#define SERIAL_LSR_PE       0x0004
+#define SERIAL_LSR_FE       0x0008
+#define SERIAL_LSR_BI       0x0010
+#define SERIAL_LSR_THRE     0x0020
+#define SERIAL_LSR_TEMT     0x0040
+#define SERIAL_LSR_FIFOERR  0x0080
+
+//MSR bit defines(place holders)
+#define ATEN_MSR_CTS         0x01
+#define ATEN_MSR_DSR         0x02
+#define ATEN_MSR_RI          0x04
+#define ATEN_MSR_CD          0x08
+#define ATEN_MSR_DELTA_CTS   0x10
+#define ATEN_MSR_DELTA_DSR   0x20
+#define ATEN_MSR_DELTA_RI    0x40
+#define ATEN_MSR_DELTA_CD    0x80
+
+// Serial Port register Address
+#define RECEIVE_BUFFER_REGISTER    ((__u16)(0x00))
+#define TRANSMIT_HOLDING_REGISTER  ((__u16)(0x00))
+#define INTERRUPT_ENABLE_REGISTER  ((__u16)(0x01))
+#define INTERRUPT_IDENT_REGISTER   ((__u16)(0x02))
+#define FIFO_CONTROL_REGISTER      ((__u16)(0x02))
+#define LINE_CONTROL_REGISTER      ((__u16)(0x03))
+#define MODEM_CONTROL_REGISTER     ((__u16)(0x04))
+#define LINE_STATUS_REGISTER       ((__u16)(0x05))
+#define MODEM_STATUS_REGISTER      ((__u16)(0x06))
+#define SCRATCH_PAD_REGISTER       ((__u16)(0x07))
+#define DIVISOR_LATCH_LSB          ((__u16)(0x00))
+#define DIVISOR_LATCH_MSB          ((__u16)(0x01))
+
+#define SP_REGISTER_BASE           ((__u16)(0x08))
+#define CONTROL_REGISTER_BASE      ((__u16)(0x09))
+#define DCR_REGISTER_BASE          ((__u16)(0x16))
+
+#define SP1_REGISTER               ((__u16)(0x00))
+#define CONTROL1_REGISTER          ((__u16)(0x01))
+#define CLK_MULTI_REGISTER         ((__u16)(0x02))
+#define CLK_START_VALUE_REGISTER   ((__u16)(0x03))
+#define DCR1_REGISTER              ((__u16)(0x04))
+#define GPIO_REGISTER              ((__u16)(0x07))
+
+#define CLOCK_SELECT_REG1          ((__u16)(0x13))
+#define CLOCK_SELECT_REG2          ((__u16)(0x14))
+
+#define SERIAL_LCR_DLAB       	   ((__u16)(0x0080))
+
+/*
+ * URB POOL related defines
+ */
+#define NUM_URBS                        16     /* URB Count */
+#define URB_TRANSFER_BUFFER_SIZE        32     /* URB Size  */
+
+struct ATENINTL_product_info
+{
+	__u16	ProductId;		/* Product Identifier */
+	__u8	NumPorts;		/* Number of ports on ATENINTL */
+	__u8	ProdInfoVer;		/* What version of structure is this? */
+
+	__u32	IsServer        :1;	/* Set if Server */
+	__u32	IsRS232         :1;	/* Set if RS-232 ports exist */
+	__u32	IsRS422         :1;	/* Set if RS-422 ports exist */
+	__u32	IsRS485         :1;	/* Set if RS-485 ports exist */
+	__u32	IsReserved      :28;	/* Reserved for later expansion */
+
+	__u8	CpuRev;			/* CPU revision level (chg only if s/w visible) */
+	__u8	BoardRev;		/* PCB revision level (chg only if s/w visible) */
+
+	__u8	ManufactureDescDate[3];	/* MM/DD/YY when descriptor template was compiled */
+	__u8	Unused1[1];		/* Available */
+};
+
+// different USB-serial Adapter's ID's table
+static struct usb_device_id ATENINTL_port_id_table [] = {
+	{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) },
+	{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) },
+	{ } /* terminating entry */
+};
+
+static __devinitdata struct usb_device_id id_table_combined [] = {
+	{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_2011) },
+	{ USB_DEVICE(USB_VENDOR_ID_ATENINTL,ATENINTL_DEVICE_ID_7820) },
+	{ } /* terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table_combined);
+
+/* This structure holds all of the local port information */
+struct ATENINTL_port
+{
+	int		port_num;          /*Actual port number in the device(1,2,etc)*/
+	__u8		bulk_out_endpoint;   	/* the bulk out endpoint handle */
+	unsigned char 	*bulk_out_buffer;     	/* buffer used for the bulk out endpoint */
+	struct urb    	*write_urb;	     	/* write URB for this port */
+	__u8	      	bulk_in_endpoint;	/* the bulk in endpoint handle */
+	unsigned char 	*bulk_in_buffer;	/* the buffer we use for the bulk in endpoint */
+	struct urb   	*read_urb;	     	/* read URB for this port */
+	__s16	     rxBytesAvail;/*the number of bytes that we need to read from this device */
+	__s16		rxBytesRemaining;	/* the number of port bytes left to read */
+	char		write_in_progress;	/* TRUE while a write URB is outstanding */
+	__u8		shadowLCR;		/* last LCR value received */
+	__u8		shadowMCR;		/* last MCR value received */
+	__u8		shadowMSR;		/* last MSR value received */
+	__u8		shadowLSR;		/* last LSR value received */
+	__u8		shadowXonChar;		/* last value set as XON char in ATENINTL */
+	__u8		shadowXoffChar;		/* last value set as XOFF char in ATENINTL */
+	__u8		validDataMask;
+	__u32		baudRate;
+	char		open;
+	char		openPending;
+	char		commandPending;
+	char		closePending;
+	char		chaseResponsePending;
+	wait_queue_head_t	wait_chase;		/* for handling sleeping while waiting for chase to finish */
+	wait_queue_head_t	wait_open;		/* for handling sleeping while waiting for open to finish */
+	wait_queue_head_t	wait_command;		/* for handling sleeping while waiting for command to finish */
+	wait_queue_head_t	delta_msr_wait;		/* for handling sleeping while waiting for msr change to happen */
+	 int                     delta_msr_cond;
+	struct async_icount	icount;
+	struct usb_serial_port	*port;			/* loop back to the owner of this object */
+	/*Offsets*/
+	__u16 		AppNum;
+	__u8 		SpRegOffset;
+	__u8 		ControlRegOffset;
+	__u8 		DcrRegOffset;
+	__u8 		ClkSelectRegOffset;
+	//for processing control URBS in interrupt context
+	struct urb 	*control_urb;
+       // __le16 rx_creg;
+        char 		*ctrl_buf;
+	int  		MsrLsr;
+
+	struct urb      *write_urb_pool[NUM_URBS];
+	/* we pass a pointer to this as the arguement sent to cypress_set_termios old_termios */
+        struct ktermios tmp_termios;        /* stores the old termios settings */
+	spinlock_t 	lock;                   /* private lock */
+};
+
+
+/* This structure holds all of the individual serial device information */
+struct ATENINTL_serial
+{
+	char		name[MAX_NAME_LEN+1];		/* string name of this device */
+	struct	ATENINTL_product_info	product_info;	/* Product Info */
+	__u8		interrupt_in_endpoint;		/* the interrupt endpoint handle */
+	unsigned char  *interrupt_in_buffer;		/* the buffer we use for the interrupt endpoint */
+	struct urb *	interrupt_read_urb;	/* our interrupt urb */
+	__u8		bulk_in_endpoint;	/* the bulk in endpoint handle */
+	unsigned char  *bulk_in_buffer;		/* the buffer we use for the bulk in endpoint */
+	struct urb 	*read_urb;		/* our bulk read urb */
+	__u8		bulk_out_endpoint;	/* the bulk out endpoint handle */
+	__s16	 rxBytesAvail;	/* the number of bytes that we need to read from this device */
+	__u8		rxPort;		/* the port that we are currently receiving data for */
+	__u8		rxStatusCode;		/* the receive status code */
+	__u8		rxStatusParam;		/* the receive status paramater */
+	__s16		rxBytesRemaining;	/* the number of port bytes left to read */
+	struct usb_serial	*serial;	/* loop back to the owner of this object */
+	int	ATEN2011_spectrum_2or4ports; 	//this says the number of ports in the device
+	// Indicates about the no.of opened ports of an individual USB-serial adapater.
+	unsigned int	NoOfOpenPorts;
+	// a flag for Status endpoint polling
+	unsigned char	status_polling_started;
+};
+
+/* baud rate information */
+struct ATEN2011_divisor_table_entry
+{
+	__u32  BaudRate;
+	__u16  Divisor;
+};
+
+/* Define table of divisors for ATENINTL 2011 hardware	   *
+ * These assume a 3.6864MHz crystal, the standard /16, and *
+ * MCR.7 = 0.						   */
+#ifdef NOTATEN2011
+static struct ATEN2011_divisor_table_entry ATEN2011_divisor_table[] = {
+	{   50,		2304},
+	{   110,	1047},	/* 2094.545455 => 230450   => .0217 % over */
+	{   134,	857},	/* 1713.011152 => 230398.5 => .00065% under */
+	{   150,	768},
+	{   300,	384},
+	{   600,	192},
+	{   1200,	96},
+	{   1800,	64},
+	{   2400,	48},
+	{   4800,	24},
+	{   7200,	16},
+	{   9600,	12},
+	{   19200,	6},
+	{   38400,	3},
+	{   57600,	2},
+	{   115200,	1},
+};
+#endif
+
+/* local function prototypes */
+/* function prototypes for all URB callbacks */
+static void ATEN2011_interrupt_callback(struct urb *urb);
+static void ATEN2011_bulk_in_callback(struct urb *urb);
+static void ATEN2011_bulk_out_data_callback(struct urb *urb);
+static void ATEN2011_control_callback(struct urb *urb);
+static int ATEN2011_get_reg(struct ATENINTL_port *ATEN,__u16 Wval, __u16 reg, __u16 * val);
+int handle_newMsr(struct ATENINTL_port *port,__u8 newMsr);
+int handle_newLsr(struct ATENINTL_port *port,__u8 newLsr);
+/* function prototypes for the usbserial callbacks */
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static int  ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
+static void ATEN2011_close(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
+static int ATEN2011_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *data, int count);
+static int  ATEN2011_write_room(struct tty_struct *tty);
+static int  ATEN2011_chars_in_buffer(struct tty_struct *tty);
+static void ATEN2011_throttle(struct tty_struct *tty);
+static void ATEN2011_unthrottle(struct tty_struct *tty);
+static void ATEN2011_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios);
+static int ATEN2011_tiocmset(struct tty_struct *tty, struct file *file,
+        			unsigned int set, unsigned int clear);
+static int ATEN2011_tiocmget(struct tty_struct *tty, struct file *file);
+static int  ATEN2011_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
+static void ATEN2011_break(struct tty_struct *tty, int break_state);
+#else
+static int  ATEN2011_open(struct usb_serial_port *port, struct file *filp);
+static void ATEN2011_close(struct usb_serial_port *port, struct file *filp);
+static int ATEN2011_write(struct usb_serial_port *port, const unsigned char *data, int count);
+static int  ATEN2011_write_room(struct usb_serial_port *port);
+static int  ATEN2011_chars_in_buffer(struct usb_serial_port *port);
+static void ATEN2011_throttle(struct usb_serial_port *port);
+static void ATEN2011_unthrottle(struct usb_serial_port *port);
+static void ATEN2011_set_termios	(struct usb_serial_port *port, struct ktermios *old_termios);
+static int ATEN2011_tiocmset(struct usb_serial_port *port, struct file *file,
+        			unsigned int set, unsigned int clear);
+static int ATEN2011_tiocmget(struct usb_serial_port *port, struct file *file);
+static int  ATEN2011_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg);
+static void ATEN2011_break(struct usb_serial_port *port, int break_state);
+#endif
+
+//static void ATEN2011_break_ctl(struct usb_serial_port *port, int break_state );
+
+static int  ATEN2011_startup(struct usb_serial *serial);
+static void ATEN2011_shutdown(struct usb_serial *serial);
+//static int ATEN2011_serial_probe(struct usb_serial *serial, const struct usb_device_id *id);
+static int ATEN2011_calc_num_ports(struct usb_serial *serial);
+
+/* function prototypes for all of our local functions */
+static int  ATEN2011_calc_baud_rate_divisor(int baudRate, int *divisor,__u16 *clk_sel_val);
+static int  ATEN2011_send_cmd_write_baud_rate(struct ATENINTL_port *ATEN2011_port, int baudRate);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+static void ATEN2011_change_port_settings(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios);
+static void ATEN2011_block_until_chase_response(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port);
+static void ATEN2011_block_until_tx_empty(struct tty_struct *tty, struct ATENINTL_port *ATEN2011_port);
+#else
+static void ATEN2011_change_port_settings(struct ATENINTL_port *ATEN2011_port, struct ktermios *old_termios);
+static void ATEN2011_block_until_chase_response(struct ATENINTL_port *ATEN2011_port);
+static void ATEN2011_block_until_tx_empty(struct ATENINTL_port *ATEN2011_port);
+#endif
+
+int __init ATENINTL2011_init(void);
+void __exit ATENINTL2011_exit(void);
+
+#endif
diff --git a/drivers/staging/uc2322/aten2011_16C50.h b/drivers/staging/uc2322/aten2011_16C50.h
new file mode 100644
index 0000000..c311741
--- /dev/null
+++ b/drivers/staging/uc2322/aten2011_16C50.h
@@ -0,0 +1,58 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#if !defined(_16C50_H)
+#define	_16C50_H
+
+/*************************************
+ * Bit definitions for each register *
+ *************************************/
+#define LCR_BITS_5		0x00	/* 5 bits/char */
+#define LCR_BITS_6		0x01	/* 6 bits/char */
+#define LCR_BITS_7		0x02	/* 7 bits/char */
+#define LCR_BITS_8		0x03	/* 8 bits/char */
+#define LCR_BITS_MASK		0x03	/* Mask for bits/char field */
+
+#define LCR_STOP_1		0x00	/* 1 stop bit */
+#define LCR_STOP_1_5		0x04	/* 1.5 stop bits (if 5   bits/char) */
+#define LCR_STOP_2		0x04	/* 2 stop bits   (if 6-8 bits/char) */
+#define LCR_STOP_MASK		0x04	/* Mask for stop bits field */
+
+#define LCR_PAR_NONE		0x00	/* No parity */
+#define LCR_PAR_ODD		0x08	/* Odd parity */
+#define LCR_PAR_EVEN		0x18	/* Even parity */
+#define LCR_PAR_MARK		0x28	/* Force parity bit to 1 */
+#define LCR_PAR_SPACE		0x38	/* Force parity bit to 0 */
+#define LCR_PAR_MASK		0x38	/* Mask for parity field */
+
+#define LCR_SET_BREAK		0x40	/* Set Break condition */
+#define LCR_DL_ENABLE		0x80	/* Enable access to divisor latch */
+
+#define MCR_DTR			0x01	/* Assert DTR */
+#define MCR_RTS			0x02	/* Assert RTS */
+#define MCR_OUT1		0x04	/* Loopback only: Sets state of RI */
+#define MCR_MASTER_IE		0x08	/* Enable interrupt outputs */
+#define MCR_LOOPBACK		0x10	/* Set internal (digital) loopback mode */
+#define MCR_XON_ANY		0x20	/* Enable any char to exit XOFF mode */
+
+#define ATEN2011_MSR_CTS	0x10	/* Current state of CTS */
+#define ATEN2011_MSR_DSR	0x20	/* Current state of DSR */
+#define ATEN2011_MSR_RI		0x40	/* Current state of RI */
+#define ATEN2011_MSR_CD		0x80	/* Current state of CD */
+
+#endif	/* if !defined(_16C50_H) */
+