Hi all,

this is a driver for the KOBIL USB smartcard readers USB TWIN, KAAN Standard Plus / SecOVID Reader Plus and KAAN Professional / B1 Professional.
(More information about these readers can be found on our homepage:
http://www.kobil.com )

The patch was created for kernel version 2.4.18.

Because this is my first Linux driver, I don't think that it's perfect...
(especially the kobil_write method...) But it worked very well on my machine.

Please report any bugs, suggestions to me.

Note that you need a modified CT-API, if you want to
use this driver. This CT-API isn't yet public available, but I can send it on
demand for testing purposes.

Also note, that this driver only supports the newest readers (converters).


Best regards,

Thomas
diff -Naur -X dontdiff linux-2.4.18/Documentation/Configure.help 
linux-2.4.18-thomas/Documentation/Configure.help
--- linux-2.4.18/Documentation/Configure.help   Mon Feb 25 20:37:51 2002
+++ linux-2.4.18-thomas/Documentation/Configure.help    Thu Nov  7 15:50:52 2002
@@ -13164,6 +13164,17 @@
   The module will be called pl2303.o.  If you want to compile it as
   a module, say M here and read <file:Documentation/modules.txt>.
 
+USB KOBIL chipcard reader
+CONFIG_USB_SERIAL_KOBIL_SCT
+  Say Y here if you want to use one of the following KOBIL USB chipcard 
+  readers: TWIN, KAAN Standard Plus, SecOVID Reader Plus, B1 PRO, KAAN PRO
+
+  Note that you need a current CT-API.
+  This code is also available as a module ( = code which can be
+  inserted in and removed from the running kernel whenever you want).
+  The module will be called kobil_sct.o. If you want to compile it as
+  a module, say M here and read <file:Documentation/modules.txt>.
+
 USB REINER SCT cyberJack pinpad/e-com chipcard reader
 CONFIG_USB_SERIAL_CYBERJACK
   Say Y here if you want to use a cyberJack pinpad/e-com USB chipcard
diff -Naur -X dontdiff linux-2.4.18/drivers/usb/serial/Config.in 
linux-2.4.18-thomas/drivers/usb/serial/Config.in
--- linux-2.4.18/drivers/usb/serial/Config.in   Mon Feb 25 20:38:07 2002
+++ linux-2.4.18-thomas/drivers/usb/serial/Config.in    Tue Oct 29 10:04:44 2002
@@ -30,6 +30,7 @@
    dep_mbool '    USB Keyspan USA-49W Firmware' CONFIG_USB_SERIAL_KEYSPAN_USA49W 
$CONFIG_USB_SERIAL_KEYSPAN
 dep_tristate '  USB MCT Single Port Serial Driver (EXPERIMENTAL)' 
CONFIG_USB_SERIAL_MCT_U232 $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
 dep_tristate '  USB KL5KUSB105 (Palmconnect) Driver (EXPERIMENTAL)' 
CONFIG_USB_SERIAL_KLSI $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
+dep_tristate '  USB KOBIL chipcard reader (EXPERIMENTAL)' CONFIG_USB_SERIAL_KOBIL_SCT 
+$CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
 dep_tristate '  USB Prolific 2303 Single Port Serial Driver (EXPERIMENTAL)' 
CONFIG_USB_SERIAL_PL2303 $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
 dep_tristate '  USB REINER SCT cyberJack pinpad/e-com chipcard reader (EXPERIMENTAL)' 
CONFIG_USB_SERIAL_CYBERJACK $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
 dep_tristate '  USB Xircom / Entregra Single Port Serial Driver (EXPERIMENTAL)' 
CONFIG_USB_SERIAL_XIRCOM $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
diff -Naur -X dontdiff linux-2.4.18/drivers/usb/serial/Makefile 
linux-2.4.18-thomas/drivers/usb/serial/Makefile
--- linux-2.4.18/drivers/usb/serial/Makefile    Mon Feb 25 20:38:07 2002
+++ linux-2.4.18-thomas/drivers/usb/serial/Makefile     Wed Oct  9 14:23:31 2002
@@ -24,6 +24,7 @@
 obj-$(CONFIG_USB_SERIAL_CYBERJACK)             += cyberjack.o
 obj-$(CONFIG_USB_SERIAL_IR)                    += ir-usb.o
 obj-$(CONFIG_USB_SERIAL_KLSI)                  += kl5kusb105.o
+obj-$(CONFIG_USB_SERIAL_KOBIL_SCT)             += kobil_sct.o
 
 # Objects that export symbols.
 export-objs    := usbserial.o
diff -Naur -X dontdiff linux-2.4.18/drivers/usb/serial/kobil_sct.c 
linux-2.4.18-thomas/drivers/usb/serial/kobil_sct.c
--- linux-2.4.18/drivers/usb/serial/kobil_sct.c Thu Jan  1 01:00:00 1970
+++ linux-2.4.18-thomas/drivers/usb/serial/kobil_sct.c  Thu Nov  7 15:43:21 2002
@@ -0,0 +1,722 @@
+/*
+ *  KOBIL USB Smart Card Terminal Driver
+ *
+ *  Copyright (C) 2002  KOBIL Systems GmbH 
+ *  Author: Thomas Wahrenbruch
+ *
+ *  Contact: [EMAIL PROTECTED]
+ *
+ *  This program is largely derived from work by the linux-usb group
+ *  and associated source files.  Please see the usb/serial files for
+ *  individual credits and copyrights.
+ *
+ *  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.
+ *
+ *  Thanks to Greg Kroah-Hartman ([EMAIL PROTECTED]) for his help and
+ *  patience.
+ *
+ * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
+ * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
+ * 
+ * TODO: High baudrates
+ *
+ * (11/07/2002) tw
+ *      Initial version.
+ */
+
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/errno.h>
+#include <linux/poll.h>
+
+//#include <linux/ioctl.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/usb.h>
+
+
+#include "kobil_sct.h"
+//#include "usb-debug.c"
+
+#ifdef CONFIG_USB_SERIAL_DEBUG
+       static int debug = 1;
+#else
+       static int debug;
+#endif
+
+#include "usb-serial.h"
+
+/* Version Information */
+#define DRIVER_VERSION "11/07/2002"
+#define DRIVER_AUTHOR "KOBIL Systems GmbH - http://www.kobil.com";
+#define DRIVER_DESC "KOBIL USB Smart Card Terminal Driver (experimental)"
+
+#define KOBIL_VENDOR_ID                   0x0D46
+#define KOBIL_ADAPTER_B_PRODUCT_ID 0x2011
+#define KOBIL_ADAPTER_K_PRODUCT_ID 0x2012
+#define KOBIL_USBTWIN_PRODUCT_ID   0x0078
+
+#define KOBIL_TIMEOUT    500
+#define KOBIL_BUF_LENGTH 300
+
+
+/* Function prototypes */
+static int  kobil_startup (struct usb_serial *serial);
+static void kobil_shutdown (struct usb_serial *serial);
+static int  kobil_open (struct usb_serial_port *port, struct file *filp);
+static void kobil_close (struct usb_serial_port *port, struct file *filp);
+static int  kobil_write (struct usb_serial_port *port, int from_user, 
+                        const unsigned char *buf, int count);
+static int  kobil_write_room(struct usb_serial_port *port);
+static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
+                       unsigned int cmd, unsigned long arg);
+static void kobil_read_int_callback( struct urb *urb );
+static void kobil_write_callback( struct urb *purb );
+
+
+static __devinitdata struct usb_device_id id_table [] = {
+       { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_B_PRODUCT_ID) },
+       { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_ADAPTER_K_PRODUCT_ID) },
+       { USB_DEVICE(KOBIL_VENDOR_ID, KOBIL_USBTWIN_PRODUCT_ID) },
+       { }                     /* Terminating entry */
+};
+
+
+MODULE_DEVICE_TABLE (usb, id_table);
+
+struct usb_serial_device_type kobil_device = {
+       name:                   "KOBIL USB smart card terminal",
+       id_table:               id_table,
+       needs_interrupt_in:     MUST_HAVE,
+       needs_bulk_in:          MUST_HAVE_NOT,
+       needs_bulk_out:         MUST_HAVE_NOT,
+       num_interrupt_in:       NUM_DONT_CARE,
+       num_bulk_in:            0,
+       num_bulk_out:           0,
+       num_ports:              1,
+       startup:                kobil_startup,
+       shutdown:               kobil_shutdown,
+       ioctl:                  kobil_ioctl,
+       open:                   kobil_open,
+       close:                  kobil_close,
+       write:                  kobil_write,
+       write_room:             kobil_write_room,
+       read_int_callback:      kobil_read_int_callback,
+};
+
+
+struct kobil_private {
+       int write_int_endpoint_address;
+       int read_int_endpoint_address;
+       unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send
+       int filled;  // index of the last char in buf
+       int cur_pos; // index of the next char to send in buf
+       __u16 device_type;
+       int line_state;
+       struct termios internal_termios;
+};
+
+
+static int kobil_startup (struct usb_serial *serial)
+{
+       int i;
+       struct kobil_private *priv;
+       struct usb_device *pdev;
+       struct usb_config_descriptor *actconfig;
+       struct usb_interface *interface;
+       struct usb_interface_descriptor *altsetting;
+       struct usb_endpoint_descriptor *endpoint;
+
+       serial->port->private = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
+       if (!serial->port->private){
+               return (-1);
+       }
+ 
+       priv = (struct kobil_private *) serial->port->private;
+       priv->filled = 0;
+       priv->cur_pos = 0;
+       priv->device_type = serial->product;
+       priv->line_state = 0;
+       
+       switch (priv->device_type){
+       case KOBIL_ADAPTER_B_PRODUCT_ID:
+               printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
+               break;
+       case KOBIL_ADAPTER_K_PRODUCT_ID:
+               printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus 
+detected\n");
+               break;
+       case KOBIL_USBTWIN_PRODUCT_ID:
+               printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
+               break;
+       }
+
+       // search for the neccessary endpoints
+       pdev = serial->dev;
+       actconfig = pdev->actconfig;
+       interface = actconfig->interface;
+       altsetting = interface->altsetting;
+       endpoint = altsetting->endpoint;
+  
+       for (i = 0; i < altsetting->bNumEndpoints; i++) {
+               endpoint = &altsetting->endpoint[i];
+               if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == 
+USB_DIR_OUT) && 
+                   ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == 
+USB_ENDPOINT_XFER_INT)) {
+                       dbg(__FUNCTION__ " Found interrupt out endpoint. Address: %d", 
+endpoint->bEndpointAddress);
+                       priv->write_int_endpoint_address = endpoint->bEndpointAddress;
+               }
+               if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == 
+USB_DIR_IN) && 
+                   ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == 
+USB_ENDPOINT_XFER_INT)) {
+                       dbg(__FUNCTION__ " Found interrupt in endpoint. Address: %d", 
+endpoint->bEndpointAddress);
+                       priv->read_int_endpoint_address = endpoint->bEndpointAddress;
+               }
+       }
+       return( 0 );
+}
+
+
+static void kobil_shutdown (struct usb_serial *serial)
+{
+       int i;
+       dbg( __FUNCTION__ );
+  
+       for (i=0; i < serial->num_ports; ++i) {
+               while (serial->port[i].open_count > 0) {
+                       kobil_close (&serial->port[i], NULL);
+               }
+               if (serial->port[i].private) {
+                       kfree(serial->port[i].private);
+               }
+       } 
+}
+
+
+static int kobil_open (struct usb_serial_port *port, struct file *filp)
+{
+       int i, result = 0;
+       struct kobil_private *priv;
+       unsigned char *transfer_buffer;
+       int transfer_buffer_length = 8;
+       int write_urb_transfer_buffer_length = 8;
+       
+       dbg( __FUNCTION__ );
+       priv = (struct kobil_private *) port->private;
+       priv->line_state = 0;
+
+       if (port_paranoia_check (port, __FUNCTION__))
+               return -ENODEV;
+       
+       down (&port->sem);
+       // someone sets the dev to 0 if the close method has been called
+       port->interrupt_in_urb->dev = port->serial->dev;
+
+       ++(port->open_count);
+       
+       if (!port->active) {
+               port->active = 1;
+               
+               /* 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.
+                */
+               port->tty->low_latency = 1;
+       }
+       up (&port->sem);
+       
+       // without this, every push_tty_char is echoed :-(  
+       port->tty->termios->c_lflag = 0;
+       port->tty->termios->c_lflag &= ~(ISIG | ICANON | ECHO | IEXTEN | XCASE);
+       port->tty->termios->c_iflag = IGNBRK | IGNPAR | IXOFF;
+       port->tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A 
+-> 0x0A 0x0D)
+       port->tty->termios->c_cc[VMIN] = 1;
+       port->tty->termios->c_cc[VTIME] = 0;
+       
+       // set up internal termios structure 
+       priv->internal_termios.c_iflag = port->tty->termios->c_iflag;
+       priv->internal_termios.c_oflag = port->tty->termios->c_oflag;
+       priv->internal_termios.c_cflag = port->tty->termios->c_cflag;
+       priv->internal_termios.c_lflag = port->tty->termios->c_lflag;
+       
+       for (i=0; i<NCCS; i++) {
+               priv->internal_termios.c_cc[i] = port->tty->termios->c_cc[i];
+       }
+       
+       // allocate memory for transfer buffer
+       transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length * 
+sizeof(char), GFP_KERNEL);  
+       if (! transfer_buffer) {
+               return (-1);
+       } else {
+               memset(transfer_buffer, 0, transfer_buffer_length);
+       }
+       
+       // allocate write_urb
+       if (!port->write_urb) { 
+               dbg( __FUNCTION__  " Allocating port->write_urb");
+               port->write_urb = usb_alloc_urb(0);  
+               if (!port->write_urb) {
+                       dbg( __FUNCTION__ " usb_alloc_urb failed");
+                       return (-1);
+               }
+       }
+ 
+       // allocate memory for write_urb transfer buffer
+       port->write_urb->transfer_buffer = (unsigned char *) 
+kmalloc(write_urb_transfer_buffer_length * sizeof(char), GFP_KERNEL);
+       if (! port->write_urb->transfer_buffer) {
+               return (-1);
+       } 
+
+       // get hardware version
+       result = usb_control_msg( port->serial->dev, 
+                                 usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                 SUSBCRequest_GetMisc,
+                                 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
+                                 SUSBCR_MSC_GetHWVersion,
+                                 0,
+                                 transfer_buffer,
+                                 transfer_buffer_length,
+                                 KOBIL_TIMEOUT
+               );
+       dbg( __FUNCTION__ " Send get_HW_version URB returns: %i", result);
+       dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], 
+transfer_buffer[2] );
+       
+       // get firmware version
+       result = usb_control_msg( port->serial->dev, 
+                                 usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                 SUSBCRequest_GetMisc,
+                                 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_IN,
+                                 SUSBCR_MSC_GetFWVersion,
+                                 0,
+                                 transfer_buffer,
+                                 transfer_buffer_length,
+                                 KOBIL_TIMEOUT
+               );
+       dbg( __FUNCTION__ " Send get_FW_version URB returns: %i", result);
+       dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], 
+transfer_buffer[2] );
+
+       if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == 
+KOBIL_ADAPTER_K_PRODUCT_ID) {
+               // Setting Baudrate, Parity and Stopbits
+               result = usb_control_msg( port->serial->dev, 
+                                         usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                         SUSBCRequest_SetBaudRateParityAndStopBits,
+                                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | 
+USB_DIR_OUT,
+                                         SUSBCR_SBR_9600 | SUSBCR_SPASB_EvenParity | 
+SUSBCR_SPASB_1StopBit,
+                                         0,
+                                         transfer_buffer,
+                                         0,
+                                         KOBIL_TIMEOUT
+                       );
+               dbg( __FUNCTION__ " Send set_baudrate URB returns: %i", result);
+               
+               // reset all queues
+               result = usb_control_msg( port->serial->dev, 
+                                         usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                         SUSBCRequest_Misc,
+                                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | 
+USB_DIR_OUT,
+                                         SUSBCR_MSC_ResetAllQueues,
+                                         0,
+                                         transfer_buffer,
+                                         0,
+                                         KOBIL_TIMEOUT
+                       );
+               dbg( __FUNCTION__ " Send reset_all_queues URB returns: %i", result);
+       }
+
+       if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) {
+               // start reading
+               result = usb_submit_urb( port->interrupt_in_urb ); 
+               dbg( __FUNCTION__ " Send read URB returns: %i", result);
+       }
+
+       kfree(transfer_buffer);
+       return (0);
+}
+
+
+static void kobil_close (struct usb_serial_port *port, struct file *filp)
+{
+       dbg(__FUNCTION__ " - port %d", port->number);
+
+       --(port->open_count);
+       if (port->open_count <= 0) {
+               if (port->write_urb){
+                       usb_unlink_urb( port->write_urb );
+                       usb_free_urb( port->write_urb );
+                       port->write_urb = 0;
+               }
+               if (port->interrupt_in_urb){
+                       usb_unlink_urb (port->interrupt_in_urb);
+               }
+               port->active = 0;
+               port->open_count = 0;
+       }
+}
+
+
+static void kobil_read_int_callback( struct urb *purb )
+{  
+       int i;
+       struct usb_serial_port *port = (struct usb_serial_port *) purb->context;
+       struct tty_struct *tty;
+       unsigned char *data = purb->transfer_buffer;
+
+       dbg( __FUNCTION__ " - port %d", port->number);
+
+       if (purb->status) {
+               dbg(__FUNCTION__ " - read int status not zero: %d", purb->status);
+               return;
+       }
+       
+       tty = port->tty; 
+       if (purb->actual_length) {
+               for (i = 0; i < purb->actual_length; ++i) {
+                       // if we insert more than TTY_FLIPBUF_SIZE characters, we drop 
+them.
+                       if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
+                               tty_flip_buffer_push(tty);
+                       }
+                       // this doesn't actually push the data through unless 
+tty->low_latency is set
+                       tty_insert_flip_char(tty, data[i], 0);
+               }
+               tty_flip_buffer_push(tty);
+       }
+}
+
+
+static void kobil_write_callback( struct urb *purb )
+{
+}
+
+
+static int kobil_write (struct usb_serial_port *port, int from_user, 
+                       const unsigned char *buf, int count)
+{
+       int length = 0;
+       int result = 0;
+       int todo = 0;
+       struct kobil_private * priv;
+
+       if (count == 0) {
+               dbg( __FUNCTION__ " write request of 0 bytes");
+               return (0); 
+       }
+
+       if (port->write_urb->status == -EINPROGRESS) {
+               dbg( __FUNCTION__ " Already writing");
+               return (0);
+       }
+
+       if (count > KOBIL_BUF_LENGTH) {
+               dbg( __FUNCTION__ " Error: write request bigger than buffer size");
+               return (0);
+       }
+
+       down (&port->sem);
+       priv = (struct kobil_private *) port->private;
+
+       // Copy data to buffer
+       if (from_user) {
+               if (copy_from_user(priv->buf + priv->filled, buf, count)) {
+                       up (&port->sem);
+                       return -EFAULT;
+               }
+       } else {
+               memcpy (priv->buf + priv->filled, buf, count);
+       }
+
+       priv->filled = priv->filled + count;
+  
+
+       // only send complete block. TWIN and adapter K use the same protocol.
+       if ( ((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) 
+&& (priv->filled >= (priv->buf[1] + 3))) || 
+            ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) 
+&& (priv->filled >= (priv->buf[2] + 4))) ) {
+               
+               // stop reading (except TWIN)
+               if (priv->device_type != KOBIL_USBTWIN_PRODUCT_ID) {
+                       usb_unlink_urb( port->interrupt_in_urb );
+               }
+
+               todo = priv->filled - priv->cur_pos;
+
+               while(todo > 0) {
+                       // max 8 byte in one urb (endpoint size)
+                       length = (todo < 8) ? todo : 8;
+                       // copy data to transfer buffer
+                       memcpy(port->write_urb->transfer_buffer, priv->buf + 
+priv->cur_pos, length );
+                       
+                       FILL_BULK_URB( port->write_urb,
+                                      port->serial->dev, 
+                                      usb_sndbulkpipe( port->serial->dev, 
+priv->write_int_endpoint_address),
+                                      port->write_urb->transfer_buffer,
+                                      length,
+                                      kobil_write_callback,
+                                      port
+                               );
+                       priv->cur_pos = priv->cur_pos + length;
+                       result = usb_submit_urb( port->write_urb ); 
+                       dbg( __FUNCTION__ " %d Send write URB returns: %i", 
+port->number, result);
+                       todo = priv->filled - priv->cur_pos;
+
+                       if (todo > 0) {
+                               //mdelay(16);
+                               set_current_state(TASK_UNINTERRUPTIBLE);
+                               schedule_timeout(24 * HZ / 1000);
+                       }
+
+               } // end while
+               
+               priv->filled = 0;
+               priv->cur_pos = 0;
+                               
+               // start reading (except TWIN)  
+               if (priv->device_type != KOBIL_USBTWIN_PRODUCT_ID) {
+                       // someone sets the dev to 0 if the close method has been 
+called
+                       port->interrupt_in_urb->dev = port->serial->dev;
+                       
+                       // start reading
+                       result = usb_submit_urb( port->interrupt_in_urb ); 
+                       dbg( __FUNCTION__ " %d Send read URB returns: %i", 
+port->number, result);
+               }
+               
+       }
+       up(&port->sem);
+       return count;  
+}
+
+
+static int kobil_write_room (struct usb_serial_port *port)
+{
+       //dbg(__FUNCTION__ " - port %d", port->number);
+       return (8);
+}
+
+
+static int  kobil_ioctl(struct usb_serial_port *port, struct file *file,
+                       unsigned int cmd, unsigned long arg)
+{
+       struct kobil_private * priv;
+       int mask;
+       int result;
+       unsigned short urb_val = 0;
+       unsigned char *transfer_buffer;
+       int transfer_buffer_length = 8;
+       char *settings;
+
+       priv = (struct kobil_private *) port->private;
+       if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) {
+               // This device doesn't support ioctl calls
+               return 0;
+       }
+
+       switch (cmd) {
+       case TCGETS:   // 0x5401
+               result = verify_area(VERIFY_WRITE, (void *)arg, sizeof(struct 
+termios));
+               if (result) {
+                       dbg( __FUNCTION__ " Error in verify_area");
+                       return(result);
+               }
+               kernel_termios_to_user_termios((struct termios *)arg, 
+&priv->internal_termios);
+               return(0);
+
+       case TCSETS:   // 0x5402
+               if (! &port->tty->termios) {
+                       dbg( __FUNCTION__ " Error: port->tty->termios is NULL\n");
+                       return (0);
+               }
+               result = verify_area(VERIFY_READ, (void *)arg, sizeof(struct termios));
+               if (result) {
+                       dbg( __FUNCTION__ " Error in verify_area");
+                       return(result);
+               }
+               user_termios_to_kernel_termios( &priv->internal_termios, (struct 
+termios *)arg);
+               
+               settings = (unsigned char *) kmalloc(50 * sizeof(char), GFP_KERNEL);  
+               if (! settings) {
+                       return (-1);
+               }
+               memset(settings, 0, 50);
+
+               switch (priv->internal_termios.c_cflag & CBAUD) {
+               case B1200:
+                       urb_val = SUSBCR_SBR_1200;
+                       strcat(settings, "1200 ");
+                       break;
+               case B9600:
+               default:
+                       urb_val = SUSBCR_SBR_9600;
+                       strcat(settings, "9600 ");
+                       break;
+               }
+
+               urb_val |= (priv->internal_termios.c_cflag & CSTOPB) ? 
+SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
+               strcat(settings, (priv->internal_termios.c_cflag & CSTOPB) ? "2 
+StopBits " : "1 StopBit ");
+               
+               if (priv->internal_termios.c_cflag & PARENB) {
+                       if  (priv->internal_termios.c_cflag & PARODD) {
+                               urb_val |= SUSBCR_SPASB_OddParity;
+                               strcat(settings, "Odd Parity");
+                       } else {
+                               urb_val |= SUSBCR_SPASB_EvenParity;
+                               strcat(settings, "Even Parity");
+                       }
+               } else {
+                       urb_val |= SUSBCR_SPASB_NoParity;
+                       strcat(settings, "No Parity");
+               }
+               dbg( __FUNCTION__ " setting port %d to: %s", port->number, settings );
+
+               result = usb_control_msg( port->serial->dev, 
+                                         usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                         SUSBCRequest_SetBaudRateParityAndStopBits,
+                                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | 
+USB_DIR_OUT,
+                                         urb_val,
+                                         0,
+                                         settings,
+                                         0,
+                                         KOBIL_TIMEOUT
+                       );
+               
+               dbg( __FUNCTION__ " Send set_baudrate URB returns: %i", result);
+               kfree(settings);
+               return(0);
+    
+       case TCFLSH:   // 0x540B
+               transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length * 
+sizeof(char), GFP_KERNEL);
+               if (! transfer_buffer) {
+                       return (-1);
+               }
+
+               result = usb_control_msg( port->serial->dev, 
+                                         usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                         SUSBCRequest_Misc,
+                                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | 
+USB_DIR_OUT,
+                                         SUSBCR_MSC_ResetAllQueues,
+                                         0,
+                                         NULL,//transfer_buffer,
+                                         0,
+                                         KOBIL_TIMEOUT
+                       );
+               
+               dbg( __FUNCTION__ " %d Send reset_all_queues (FLUSH) URB returns: %i", 
+port->number, result);
+                
+               kfree(transfer_buffer);
+               return ((result < 0) ? -EFAULT : 0);
+
+       case TIOCMGET: // 0x5415
+               // allocate memory for transfer buffer
+               transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length * 
+sizeof(char), GFP_KERNEL);  
+               if (! transfer_buffer) {
+                       return (-1);
+               } else {
+                       memset(transfer_buffer, 0, transfer_buffer_length);
+               }
+
+               result = usb_control_msg( port->serial->dev, 
+                                         usb_rcvctrlpipe(port->serial->dev, 0 ), 
+                                         SUSBCRequest_GetStatusLineState,
+                                         USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | 
+USB_DIR_IN,
+                                         0,
+                                         0,
+                                         transfer_buffer,
+                                         transfer_buffer_length,
+                                         KOBIL_TIMEOUT
+                       );
+       
+               dbg( __FUNCTION__ " %d Send get_status_line_state (TIOCMGET) URB 
+returns: %i. Statusline: %02x", 
+                    port->number, result, transfer_buffer[0]);
+       
+               if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) {
+                       priv->line_state |= TIOCM_DSR;
+               } else {
+                       priv->line_state &= ~TIOCM_DSR; 
+               }
+               
+               kfree(transfer_buffer);
+               return put_user(priv->line_state, (unsigned long *) arg);
+               
+       case TIOCMSET: // 0x5418
+               if (get_user(mask, (unsigned long *) arg)){
+                       return -EFAULT;
+               }
+               // allocate memory for transfer buffer
+               transfer_buffer = (unsigned char *) kmalloc(transfer_buffer_length * 
+sizeof(char), GFP_KERNEL);
+               if (! transfer_buffer) {
+                       return (-1);
+               } else {
+                       memset(transfer_buffer, 0, transfer_buffer_length);
+               }
+
+               if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
+                       if ((mask & TIOCM_DTR) != 0){
+                               dbg("Setting DTR - port %d", port->number);
+                       } else {
+                               dbg("Clearing DTR - port %d", port->number);
+                       } 
+                       result = usb_control_msg( port->serial->dev, 
+                                                 usb_rcvctrlpipe(port->serial->dev, 0 
+), 
+                                                 SUSBCRequest_SetStatusLinesOrQueues,
+                                                 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT 
+| USB_DIR_OUT,
+                                                 ( ((mask & TIOCM_DTR) != 0) ? 
+SUSBCR_SSL_SETDTR : SUSBCR_SSL_CLRDTR),
+                                                 0,
+                                                 transfer_buffer,
+                                                 0,
+                                                 KOBIL_TIMEOUT
+                               );
+                       
+               } else {
+                       if ((mask & TIOCM_RTS) != 0){
+                               dbg("Setting RTS - port %d", port->number);
+                       } else {
+                               dbg("Clearing RTS - port %d", port->number);
+                       }
+                       result = usb_control_msg( port->serial->dev, 
+                                                 usb_rcvctrlpipe(port->serial->dev, 0 
+), 
+                                                 SUSBCRequest_SetStatusLinesOrQueues,
+                                                 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT 
+| USB_DIR_OUT,
+                                                 (((mask & TIOCM_RTS) != 0) ? 
+SUSBCR_SSL_SETRTS : SUSBCR_SSL_CLRRTS),
+                                                 0,
+                                                 transfer_buffer,
+                                                 0,
+                                                 KOBIL_TIMEOUT
+                               );
+               }
+               dbg( __FUNCTION__ " %d Send set_status_line (TIOCMSET) URB returns: 
+%i", port->number, result);
+       
+               kfree(transfer_buffer);
+               return ((result < 0) ? -EFAULT : 0);
+       }
+       return 0;
+}
+
+
+static int __init kobil_init (void)
+{
+       usb_serial_register (&kobil_device);
+
+       info(DRIVER_VERSION " " DRIVER_AUTHOR);
+       info(DRIVER_DESC);
+
+       return 0;
+}
+
+
+static void __exit kobil_exit (void)
+{
+       usb_serial_deregister (&kobil_device);
+}
+
+module_init(kobil_init);
+module_exit(kobil_exit);
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_LICENSE( "GPL" );
+
+MODULE_PARM(debug, "i");
+MODULE_PARM_DESC(debug, "Debug enabled or not");
diff -Naur -X dontdiff linux-2.4.18/drivers/usb/serial/kobil_sct.h 
linux-2.4.18-thomas/drivers/usb/serial/kobil_sct.h
--- linux-2.4.18/drivers/usb/serial/kobil_sct.h Thu Jan  1 01:00:00 1970
+++ linux-2.4.18-thomas/drivers/usb/serial/kobil_sct.h  Tue Nov  5 12:20:52 2002
@@ -0,0 +1,60 @@
+#define SUSBCRequest_SetBaudRateParityAndStopBits       1
+#define SUSBCR_SBR_MASK                                0xFF00
+#define SUSBCR_SBR_1200                                0x0100
+#define SUSBCR_SBR_9600                                0x0200
+#define SUSBCR_SBR_19200                       0x0400
+#define SUSBCR_SBR_28800                       0x0800
+#define SUSBCR_SBR_38400                       0x1000
+#define SUSBCR_SBR_57600                       0x2000
+#define SUSBCR_SBR_115200                      0x4000
+
+#define SUSBCR_SPASB_MASK                      0x0070
+#define SUSBCR_SPASB_NoParity                  0x0010
+#define SUSBCR_SPASB_OddParity                 0x0020
+#define SUSBCR_SPASB_EvenParity                        0x0040
+
+#define SUSBCR_SPASB_STPMASK                   0x0003
+#define SUSBCR_SPASB_1StopBit                  0x0001
+#define SUSBCR_SPASB_2StopBits                 0x0002
+
+#define SUSBCRequest_SetStatusLinesOrQueues    2
+#define SUSBCR_SSL_SETRTS                      0x0001
+#define SUSBCR_SSL_CLRRTS                      0x0002
+#define SUSBCR_SSL_SETDTR                      0x0004
+#define SUSBCR_SSL_CLRDTR                      0x0010
+
+#define SUSBCR_SSL_PURGE_TXABORT               0x0100  // Kill the pending/current 
+writes to the comm port.
+#define SUSBCR_SSL_PURGE_RXABORT               0x0200  // Kill the pending/current 
+reads to the comm port.
+#define SUSBCR_SSL_PURGE_TXCLEAR               0x0400  // Kill the transmit queue if 
+there.
+#define SUSBCR_SSL_PURGE_RXCLEAR               0x0800  // Kill the typeahead buffer 
+if there.
+
+#define SUSBCRequest_GetStatusLineState                4
+#define SUSBCR_GSL_RXCHAR                      0x0001  // Any Character received
+#define SUSBCR_GSL_TXEMPTY                     0x0004  // Transmitt Queue Empty
+#define SUSBCR_GSL_CTS                         0x0008  // CTS changed state
+#define SUSBCR_GSL_DSR                         0x0010  // DSR changed state
+#define SUSBCR_GSL_RLSD                                0x0020  // RLSD changed state
+#define SUSBCR_GSL_BREAK                       0x0040  // BREAK received
+#define SUSBCR_GSL_ERR                         0x0080  // Line status error occurred
+#define SUSBCR_GSL_RING                                0x0100  // Ring signal detected
+
+#define SUSBCRequest_Misc                      8
+#define SUSBCR_MSC_ResetReader                 0x0001  // use a predefined reset 
+sequence
+#define SUSBCR_MSC_ResetAllQueues              0x0002  // use a predefined sequence 
+to reset the internal queues
+
+#define SUSBCRequest_GetMisc                   0x10
+#define SUSBCR_MSC_GetFWVersion                        0x0001  /* get the firmware 
+version from device,
+                                                          coded like this 0xHHLLBBPP
+                                                          with HH = Firmware Version 
+High Byte
+                                                          LL = Firmware Version Low 
+Byte
+                                                          BB = Build Number
+                                                          PP = Further Attributes
+                                                       */
+
+#define SUSBCR_MSC_GetHWVersion                        0x0002  /* get the hardware 
+version from device
+                                                          coded like this 0xHHLLPPRR
+                                                          with HH = Software Version 
+High Byte
+                                                          LL = Software Version Low 
+Byte
+                                                          PP = Further Attributes
+                                                          RR = Reserved for the 
+hardware ID 
+                                                       */


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