Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 614 insertions, 0 deletions

diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
new file mode 100644
index 000000000000..86994d117c44
--- /dev/null
+++ b/drivers/usb/serial/belkin_sa.c
@@ -0,0 +1,614 @@
+/*
+ * Belkin USB Serial Adapter Driver
+ *
+ *  Copyright (C) 2000          William Greathouse (wgreathouse@smva.com)
+ *  Copyright (C) 2000-2001     Greg Kroah-Hartman (greg@kroah.com)
+ *
+ *  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.
+ *
+ * See Documentation/usb/usb-serial.txt for more information on using this driver
+ *
+ * TODO:
+ * -- Add true modem contol line query capability.  Currently we track the
+ *    states reported by the interrupt and the states we request.
+ * -- Add error reporting back to application for UART error conditions.
+ *    Just point me at how to implement this and I'll do it. I've put the
+ *    framework in, but haven't analyzed the "tty_flip" interface yet.
+ * -- Add support for flush commands
+ * -- Add everything that is missing :)
+ *
+ * 27-Nov-2001 gkh
+ *      compressed all the differnent device entries into 1.
+ *
+ * 30-May-2001 gkh
+ *      switched from using spinlock to a semaphore, which fixes lots of problems.
+ *
+ * 08-Apr-2001 gb
+ *      - Identify version on module load.
+ *
+ * 12-Mar-2001 gkh
+ *      - Added support for the GoHubs GO-COM232 device which is the same as the
+ *        Peracom device.
+ *
+ * 06-Nov-2000 gkh
+ *      - Added support for the old Belkin and Peracom devices.
+ *      - Made the port able to be opened multiple times.
+ *      - Added some defaults incase the line settings are things these devices
+ *        can't support. 
+ *
+ * 18-Oct-2000 William Greathouse
+ *    Released into the wild (linux-usb-devel)
+ *
+ * 17-Oct-2000 William Greathouse
+ *    Add code to recognize firmware version and set hardware flow control
+ *    appropriately.  Belkin states that firmware prior to 3.05 does not
+ *    operate correctly in hardware handshake mode.  I have verified this
+ *    on firmware 2.05 -- for both RTS and DTR input flow control, the control
+ *    line is not reset.  The test performed by the Belkin Win* driver is
+ *    to enable hardware flow control for firmware 2.06 or greater and
+ *    for 1.00 or prior.  I am only enabling for 2.06 or greater.
+ *
+ * 12-Oct-2000 William Greathouse
+ *    First cut at supporting Belkin USB Serial Adapter F5U103
+ *    I did not have a copy of the original work to support this
+ *    adapter, so pardon any stupid mistakes.  All of the information
+ *    I am using to write this driver was acquired by using a modified
+ *    UsbSnoop on Windows2000 and from examining the other USB drivers.
+ */
+
+#include <linux/config.h>
+#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 <asm/uaccess.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+#include "belkin_sa.h"
+
+static int debug;
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.2"
+#define DRIVER_AUTHOR "William Greathouse <wgreathouse@smva.com>"
+#define DRIVER_DESC "USB Belkin Serial converter driver"
+
+/* function prototypes for a Belkin USB Serial Adapter F5U103 */
+static int  belkin_sa_startup           (struct usb_serial *serial);
+static void belkin_sa_shutdown          (struct usb_serial *serial);
+static int  belkin_sa_open              (struct usb_serial_port *port, struct file *filp);
+static void belkin_sa_close             (struct usb_serial_port *port, struct file *filp);
+static void belkin_sa_read_int_callback (struct urb *urb, struct pt_regs *regs);
+static void belkin_sa_set_termios       (struct usb_serial_port *port, struct termios * old);
+static int  belkin_sa_ioctl             (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg);
+static void belkin_sa_break_ctl         (struct usb_serial_port *port, int break_state );
+static int  belkin_sa_tiocmget          (struct usb_serial_port *port, struct file *file);
+static int  belkin_sa_tiocmset          (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear);
+
+
+static struct usb_device_id id_table_combined [] = {
+        { USB_DEVICE(BELKIN_SA_VID, BELKIN_SA_PID) },
+        { USB_DEVICE(BELKIN_OLD_VID, BELKIN_OLD_PID) },
+        { USB_DEVICE(PERACOM_VID, PERACOM_PID) },
+        { USB_DEVICE(GOHUBS_VID, GOHUBS_PID) },
+        { USB_DEVICE(GOHUBS_VID, HANDYLINK_PID) },
+        { USB_DEVICE(BELKIN_DOCKSTATION_VID, BELKIN_DOCKSTATION_PID) },
+        { }                                                     /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, id_table_combined);
+
+static struct usb_driver belkin_driver = {
+        .owner =        THIS_MODULE,
+        .name =         "belkin",
+        .probe =        usb_serial_probe,
+        .disconnect =   usb_serial_disconnect,
+        .id_table =     id_table_combined,
+};
+
+/* All of the device info needed for the serial converters */
+static struct usb_serial_device_type belkin_device = {
+        .owner =                THIS_MODULE,
+        .name =                 "Belkin / Peracom / GoHubs USB Serial Adapter",
+        .short_name =           "belkin",
+        .id_table =             id_table_combined,
+        .num_interrupt_in =     1,
+        .num_bulk_in =          1,
+        .num_bulk_out =         1,
+        .num_ports =            1,
+        .open =                 belkin_sa_open,
+        .close =                belkin_sa_close,
+        .read_int_callback =    belkin_sa_read_int_callback,    /* How we get the status info */
+        .ioctl =                belkin_sa_ioctl,
+        .set_termios =          belkin_sa_set_termios,
+        .break_ctl =            belkin_sa_break_ctl,
+        .tiocmget =             belkin_sa_tiocmget,
+        .tiocmset =             belkin_sa_tiocmset,
+        .attach =               belkin_sa_startup,
+        .shutdown =             belkin_sa_shutdown,
+};
+
+
+struct belkin_sa_private {
+        spinlock_t              lock;
+        unsigned long           control_state;
+        unsigned char           last_lsr;
+        unsigned char           last_msr;
+        int                     bad_flow_control;
+};
+
+
+/*
+ * ***************************************************************************
+ * Belkin USB Serial Adapter F5U103 specific driver functions
+ * ***************************************************************************
+ */
+
+#define WDR_TIMEOUT 5000 /* default urb timeout */
+
+/* assumes that struct usb_serial *serial is available */
+#define BSA_USB_CMD(c,v) usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), \
+                                            (c), BELKIN_SA_SET_REQUEST_TYPE, \
+                                            (v), 0, NULL, 0, WDR_TIMEOUT)
+
+/* do some startup allocations not currently performed by usb_serial_probe() */
+static int belkin_sa_startup (struct usb_serial *serial)
+{
+        struct usb_device *dev = serial->dev;
+        struct belkin_sa_private *priv;
+
+        /* allocate the private data structure */
+        priv = kmalloc(sizeof(struct belkin_sa_private), GFP_KERNEL);
+        if (!priv)
+                return (-1); /* error */
+        /* set initial values for control structures */
+        spin_lock_init(&priv->lock);
+        priv->control_state = 0;
+        priv->last_lsr = 0;
+        priv->last_msr = 0;
+        /* see comments at top of file */
+        priv->bad_flow_control = (le16_to_cpu(dev->descriptor.bcdDevice) <= 0x0206) ? 1 : 0;
+        info("bcdDevice: %04x, bfc: %d", le16_to_cpu(dev->descriptor.bcdDevice), priv->bad_flow_control);
+
+        init_waitqueue_head(&serial->port[0]->write_wait);
+        usb_set_serial_port_data(serial->port[0], priv);
+        
+        return (0);
+}
+
+
+static void belkin_sa_shutdown (struct usb_serial *serial)
+{
+        struct belkin_sa_private *priv;
+        int i;
+        
+        dbg ("%s", __FUNCTION__);
+
+        /* stop reads and writes on all ports */
+        for (i=0; i < serial->num_ports; ++i) {
+                /* My special items, the standard routines free my urbs */
+                priv = usb_get_serial_port_data(serial->port[i]);
+                if (priv)
+                        kfree(priv);
+        }
+}
+
+
+static int  belkin_sa_open (struct usb_serial_port *port, struct file *filp)
+{
+        int retval = 0;
+
+        dbg("%s port %d", __FUNCTION__, port->number);
+
+        /*Start reading from the device*/
+        /* TODO: Look at possibility of submitting multiple URBs to device to
+         *       enhance buffering.  Win trace shows 16 initial read URBs.
+         */
+        port->read_urb->dev = port->serial->dev;
+        retval = usb_submit_urb(port->read_urb, GFP_KERNEL);
+        if (retval) {
+                err("usb_submit_urb(read bulk) failed");
+                goto exit;
+        }
+
+        port->interrupt_in_urb->dev = port->serial->dev;
+        retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+        if (retval) {
+                usb_kill_urb(port->read_urb);
+                err(" usb_submit_urb(read int) failed");
+        }
+
+exit:
+        return retval;
+} /* belkin_sa_open */
+
+
+static void belkin_sa_close (struct usb_serial_port *port, struct file *filp)
+{
+        dbg("%s port %d", __FUNCTION__, port->number);
+
+        /* shutdown our bulk reads and writes */
+        usb_kill_urb(port->write_urb);
+        usb_kill_urb(port->read_urb);
+        usb_kill_urb(port->interrupt_in_urb);
+} /* belkin_sa_close */
+
+
+static void belkin_sa_read_int_callback (struct urb *urb, struct pt_regs *regs)
+{
+        struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
+        struct belkin_sa_private *priv;
+        unsigned char *data = urb->transfer_buffer;
+        int retval;
+        unsigned long flags;
+
+        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;
+        }
+
+        usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
+
+        /* Handle known interrupt data */
+        /* ignore data[0] and data[1] */
+
+        priv = usb_get_serial_port_data(port);
+        spin_lock_irqsave(&priv->lock, flags);
+        priv->last_msr = data[BELKIN_SA_MSR_INDEX];
+        
+        /* Record Control Line states */
+        if (priv->last_msr & BELKIN_SA_MSR_DSR)
+                priv->control_state |= TIOCM_DSR;
+        else
+                priv->control_state &= ~TIOCM_DSR;
+
+        if (priv->last_msr & BELKIN_SA_MSR_CTS)
+                priv->control_state |= TIOCM_CTS;
+        else
+                priv->control_state &= ~TIOCM_CTS;
+
+        if (priv->last_msr & BELKIN_SA_MSR_RI)
+                priv->control_state |= TIOCM_RI;
+        else
+                priv->control_state &= ~TIOCM_RI;
+
+        if (priv->last_msr & BELKIN_SA_MSR_CD)
+                priv->control_state |= TIOCM_CD;
+        else
+                priv->control_state &= ~TIOCM_CD;
+
+        /* Now to report any errors */
+        priv->last_lsr = data[BELKIN_SA_LSR_INDEX];
+#if 0
+        /*
+         * fill in the flip buffer here, but I do not know the relation
+         * to the current/next receive buffer or characters.  I need
+         * to look in to this before committing any code.
+         */
+        if (priv->last_lsr & BELKIN_SA_LSR_ERR) {
+                tty = port->tty;
+                /* Overrun Error */
+                if (priv->last_lsr & BELKIN_SA_LSR_OE) {
+                }
+                /* Parity Error */
+                if (priv->last_lsr & BELKIN_SA_LSR_PE) {
+                }
+                /* Framing Error */
+                if (priv->last_lsr & BELKIN_SA_LSR_FE) {
+                }
+                /* Break Indicator */
+                if (priv->last_lsr & BELKIN_SA_LSR_BI) {
+                }
+        }
+#endif
+        spin_unlock_irqrestore(&priv->lock, flags);
+exit:
+        retval = usb_submit_urb (urb, GFP_ATOMIC);
+        if (retval)
+                err ("%s - usb_submit_urb failed with result %d",
+                     __FUNCTION__, retval);
+}
+
+static void belkin_sa_set_termios (struct usb_serial_port *port, struct termios *old_termios)
+{
+        struct usb_serial *serial = port->serial;
+        struct belkin_sa_private *priv = usb_get_serial_port_data(port);
+        unsigned int iflag;
+        unsigned int cflag;
+        unsigned int old_iflag = 0;
+        unsigned int old_cflag = 0;
+        __u16 urb_value = 0; /* Will hold the new flags */
+        unsigned long flags;
+        unsigned long control_state;
+        int bad_flow_control;
+        
+        if ((!port->tty) || (!port->tty->termios)) {
+                dbg ("%s - no tty or termios structure", __FUNCTION__);
+                return;
+        }
+
+        iflag = port->tty->termios->c_iflag;
+        cflag = port->tty->termios->c_cflag;
+
+        /* get a local copy of the current port settings */
+        spin_lock_irqsave(&priv->lock, flags);
+        control_state = priv->control_state;
+        bad_flow_control = priv->bad_flow_control;
+        spin_unlock_irqrestore(&priv->lock, flags);
+        
+        /* check that they really want us to change something */
+        if (old_termios) {
+                if ((cflag == old_termios->c_cflag) &&
+                    (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) {
+                        dbg("%s - nothing to change...", __FUNCTION__);
+                        return;
+                }
+                old_iflag = old_termios->c_iflag;
+                old_cflag = old_termios->c_cflag;
+        }
+
+        /* Set the baud rate */
+        if( (cflag&CBAUD) != (old_cflag&CBAUD) ) {
+                /* reassert DTR and (maybe) RTS on transition from B0 */
+                if( (old_cflag&CBAUD) == B0 ) {
+                        control_state |= (TIOCM_DTR|TIOCM_RTS);
+                        if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 1) < 0)
+                                err("Set DTR error");
+                        /* don't set RTS if using hardware flow control */
+                        if (!(old_cflag&CRTSCTS) )
+                                if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 1) < 0)
+                                        err("Set RTS error");
+                }
+
+                switch(cflag & CBAUD) {
+                        case B0: /* handled below */ break;
+                        case B300: urb_value = BELKIN_SA_BAUD(300); break;
+                        case B600: urb_value = BELKIN_SA_BAUD(600); break;
+                        case B1200: urb_value = BELKIN_SA_BAUD(1200); break;
+                        case B2400: urb_value = BELKIN_SA_BAUD(2400); break;
+                        case B4800: urb_value = BELKIN_SA_BAUD(4800); break;
+                        case B9600: urb_value = BELKIN_SA_BAUD(9600); break;
+                        case B19200: urb_value = BELKIN_SA_BAUD(19200); break;
+                        case B38400: urb_value = BELKIN_SA_BAUD(38400); break;
+                        case B57600: urb_value = BELKIN_SA_BAUD(57600); break;
+                        case B115200: urb_value = BELKIN_SA_BAUD(115200); break;
+                        case B230400: urb_value = BELKIN_SA_BAUD(230400); break;
+                        default: err("BELKIN USB Serial Adapter: unsupported baudrate request, using default of 9600");
+                                urb_value = BELKIN_SA_BAUD(9600); break;
+                }
+                if ((cflag & CBAUD) != B0 ) {
+                        if (BSA_USB_CMD(BELKIN_SA_SET_BAUDRATE_REQUEST, urb_value) < 0)
+                                err("Set baudrate error");
+                } else {
+                        /* Disable flow control */
+                        if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, BELKIN_SA_FLOW_NONE) < 0)
+                                err("Disable flowcontrol error");
+
+                        /* Drop RTS and DTR */
+                        control_state &= ~(TIOCM_DTR | TIOCM_RTS);
+                        if (BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, 0) < 0)
+                                err("DTR LOW error");
+                        if (BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, 0) < 0)
+                                err("RTS LOW error");
+                }
+        }
+
+        /* set the parity */
+        if( (cflag&(PARENB|PARODD)) != (old_cflag&(PARENB|PARODD)) ) {
+                if (cflag & PARENB)
+                        urb_value = (cflag & PARODD) ?  BELKIN_SA_PARITY_ODD : BELKIN_SA_PARITY_EVEN;
+                else
+                        urb_value = BELKIN_SA_PARITY_NONE;
+                if (BSA_USB_CMD(BELKIN_SA_SET_PARITY_REQUEST, urb_value) < 0)
+                        err("Set parity error");
+        }
+
+        /* set the number of data bits */
+        if( (cflag&CSIZE) != (old_cflag&CSIZE) ) {
+                switch (cflag & CSIZE) {
+                        case CS5: urb_value = BELKIN_SA_DATA_BITS(5); break;
+                        case CS6: urb_value = BELKIN_SA_DATA_BITS(6); break;
+                        case CS7: urb_value = BELKIN_SA_DATA_BITS(7); break;
+                        case CS8: urb_value = BELKIN_SA_DATA_BITS(8); break;
+                        default: err("CSIZE was not CS5-CS8, using default of 8");
+                                urb_value = BELKIN_SA_DATA_BITS(8);
+                                break;
+                }
+                if (BSA_USB_CMD(BELKIN_SA_SET_DATA_BITS_REQUEST, urb_value) < 0)
+                        err("Set data bits error");
+        }
+
+        /* set the number of stop bits */
+        if( (cflag&CSTOPB) != (old_cflag&CSTOPB) ) {
+                urb_value = (cflag & CSTOPB) ? BELKIN_SA_STOP_BITS(2) : BELKIN_SA_STOP_BITS(1);
+                if (BSA_USB_CMD(BELKIN_SA_SET_STOP_BITS_REQUEST, urb_value) < 0)
+                        err("Set stop bits error");
+        }
+
+        /* Set flow control */
+        if( (iflag&IXOFF)   != (old_iflag&IXOFF)
+        ||      (iflag&IXON)    != (old_iflag&IXON)
+        ||  (cflag&CRTSCTS) != (old_cflag&CRTSCTS) ) {
+                urb_value = 0;
+                if ((iflag & IXOFF) || (iflag & IXON))
+                        urb_value |= (BELKIN_SA_FLOW_OXON | BELKIN_SA_FLOW_IXON);
+                else
+                        urb_value &= ~(BELKIN_SA_FLOW_OXON | BELKIN_SA_FLOW_IXON);
+
+                if (cflag & CRTSCTS)
+                        urb_value |=  (BELKIN_SA_FLOW_OCTS | BELKIN_SA_FLOW_IRTS);
+                else
+                        urb_value &= ~(BELKIN_SA_FLOW_OCTS | BELKIN_SA_FLOW_IRTS);
+
+                if (bad_flow_control)
+                        urb_value &= ~(BELKIN_SA_FLOW_IRTS);
+
+                if (BSA_USB_CMD(BELKIN_SA_SET_FLOW_CTRL_REQUEST, urb_value) < 0)
+                        err("Set flow control error");
+        }
+
+        /* save off the modified port settings */
+        spin_lock_irqsave(&priv->lock, flags);
+        priv->control_state = control_state;
+        spin_unlock_irqrestore(&priv->lock, flags);
+} /* belkin_sa_set_termios */
+
+
+static void belkin_sa_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);
+}
+
+
+static int belkin_sa_tiocmget (struct usb_serial_port *port, struct file *file)
+{
+        struct belkin_sa_private *priv = usb_get_serial_port_data(port);
+        unsigned long control_state;
+        unsigned long flags;
+        
+        dbg("%s", __FUNCTION__);
+
+        spin_lock_irqsave(&priv->lock, flags);
+        control_state = priv->control_state;
+        spin_unlock_irqrestore(&priv->lock, flags);
+
+        return control_state;
+}
+
+
+static int belkin_sa_tiocmset (struct usb_serial_port *port, struct file *file,
+                               unsigned int set, unsigned int clear)
+{
+        struct usb_serial *serial = port->serial;
+        struct belkin_sa_private *priv = usb_get_serial_port_data(port);
+        unsigned long control_state;
+        unsigned long flags;
+        int retval;
+        int rts = 0;
+        int dtr = 0;
+        
+        dbg("%s", __FUNCTION__);
+
+        spin_lock_irqsave(&priv->lock, flags);
+        control_state = priv->control_state;
+
+        if (set & TIOCM_RTS) {
+                control_state |= TIOCM_RTS;
+                rts = 1;
+        }
+        if (set & TIOCM_DTR) {
+                control_state |= TIOCM_DTR;
+                dtr = 1;
+        }
+        if (clear & TIOCM_RTS) {
+                control_state &= ~TIOCM_RTS;
+                rts = 0;
+        }
+        if (clear & TIOCM_DTR) {
+                control_state &= ~TIOCM_DTR;
+                dtr = 0;
+        }
+
+        priv->control_state = control_state;
+        spin_unlock_irqrestore(&priv->lock, flags);
+
+        retval = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, rts);
+        if (retval < 0) {
+                err("Set RTS error %d", retval);
+                goto exit;
+        }
+
+        retval = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, dtr);
+        if (retval < 0) {
+                err("Set DTR error %d", retval);
+                goto exit;
+        }
+exit:
+        return retval;
+}
+
+
+static int belkin_sa_ioctl (struct usb_serial_port *port, struct file * file, unsigned int cmd, unsigned long arg)
+{
+        switch (cmd) {
+        case TIOCMIWAIT:
+                /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
+                /* TODO */
+                return( 0 );
+
+        case TIOCGICOUNT:
+                /* return count of modemline transitions */
+                /* TODO */
+                return 0;
+
+        default:
+                dbg("belkin_sa_ioctl arg not supported - 0x%04x",cmd);
+                return(-ENOIOCTLCMD);
+                break;
+        }
+        return 0;
+} /* belkin_sa_ioctl */
+
+
+static int __init belkin_sa_init (void)
+{
+        int retval;
+        retval = usb_serial_register(&belkin_device);
+        if (retval)
+                goto failed_usb_serial_register;
+        retval = usb_register(&belkin_driver);
+        if (retval)
+                goto failed_usb_register;
+        info(DRIVER_DESC " " DRIVER_VERSION);
+        return 0;
+failed_usb_register:
+        usb_serial_deregister(&belkin_device);
+failed_usb_serial_register:
+        return retval;
+}
+
+
+static void __exit belkin_sa_exit (void)
+{
+        usb_deregister (&belkin_driver);
+        usb_serial_deregister (&belkin_device);
+}
+
+
+module_init (belkin_sa_init);
+module_exit (belkin_sa_exit);
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_VERSION( DRIVER_VERSION );
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");