drivers/usb/serial/ssu100.c

   1 /*
   2  * usb-serial driver for Quatech SSU-100
   3  *
   4  * based on ftdi_sio.c and the original serqt_usb.c from Quatech
   5  *
   6  */
   7
   8 #include <linux/errno.h>
   9 #include <linux/init.h>
  10 #include <linux/slab.h>
  11 #include <linux/tty.h>
  12 #include <linux/tty_driver.h>
  13 #include <linux/tty_flip.h>
  14 #include <linux/module.h>
  15 #include <linux/serial.h>
  16 #include <linux/usb.h>
  17 #include <linux/usb/serial.h>
  18 #include <linux/serial_reg.h>
  19 #include <linux/uaccess.h>
  20
  21 #define QT_OPEN_CLOSE_CHANNEL       0xca
  22 #define QT_SET_GET_DEVICE           0xc2
  23 #define QT_SET_GET_REGISTER         0xc0
  24 #define QT_GET_SET_PREBUF_TRIG_LVL  0xcc
  25 #define QT_SET_ATF                  0xcd
  26 #define QT_GET_SET_UART             0xc1
  27 #define QT_TRANSFER_IN              0xc0
  28 #define QT_HW_FLOW_CONTROL_MASK     0xc5
  29 #define QT_SW_FLOW_CONTROL_MASK     0xc6
  30
  31 #define  SERIAL_MSR_MASK            0xf0
  32
  33 #define  SERIAL_CRTSCTS ((UART_MCR_RTS << 8) | UART_MSR_CTS)
  34
  35 #define  SERIAL_EVEN_PARITY         (UART_LCR_PARITY | UART_LCR_EPAR)
  36
  37 #define  MAX_BAUD_RATE              460800
  38
  39 #define ATC_DISABLED                0x00
  40 #define DUPMODE_BITS        0xc0
  41 #define RR_BITS             0x03
  42 #define LOOPMODE_BITS       0x41
  43 #define RS232_MODE          0x00
  44 #define RTSCTS_TO_CONNECTOR 0x40
  45 #define CLKS_X4             0x02
  46 #define FULLPWRBIT          0x00000080
  47 #define NEXT_BOARD_POWER_BIT        0x00000004
  48
  49 /* Version Information */
  50 #define DRIVER_VERSION "v0.1"
  51 #define DRIVER_DESC "Quatech SSU-100 USB to Serial Driver"
  52
  53 #define USB_VENDOR_ID_QUATECH   0x061d  /* Quatech VID */
  54 #define QUATECH_SSU100  0xC020  /* SSU100 */
  55
  56 static const struct usb_device_id id_table[] = {
  57         {USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU100)},
  58         {}                      /* Terminating entry */
  59 };
  60 MODULE_DEVICE_TABLE(usb, id_table);
  61
  62 struct ssu100_port_private {
  63         spinlock_t status_lock;
  64         u8 shadowLSR;
  65         u8 shadowMSR;
  66         wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
  67         struct async_icount icount;
  68 };
  69
  70 static void ssu100_release(struct usb_serial *serial)
  71 {
  72         struct ssu100_port_private *priv = usb_get_serial_port_data(*serial->port);
  73
  74         kfree(priv);
  75 }
  76
  77 static inline int ssu100_control_msg(struct usb_device *dev,
  78                                      u8 request, u16 data, u16 index)
  79 {
  80         return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
  81                                request, 0x40, data, index,
  82                                NULL, 0, 300);
  83 }
  84
  85 static inline int ssu100_setdevice(struct usb_device *dev, u8 *data)
  86 {
  87         u16 x = ((u16)(data[1] << 8) | (u16)(data[0]));
  88
  89         return ssu100_control_msg(dev, QT_SET_GET_DEVICE, x, 0);
  90 }
  91
  92
  93 static inline int ssu100_getdevice(struct usb_device *dev, u8 *data)
  94 {
  95         return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
  96                                QT_SET_GET_DEVICE, 0xc0, 0, 0,
  97                                data, 3, 300);
  98 }
  99
 100 static inline int ssu100_getregister(struct usb_device *dev,
 101                                      unsigned short uart,
 102                                      unsigned short reg,
 103                                      u8 *data)
 104 {
 105         return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 106                                QT_SET_GET_REGISTER, 0xc0, reg,
 107                                uart, data, sizeof(*data), 300);
 108
 109 }
 110
 111
 112 static inline int ssu100_setregister(struct usb_device *dev,
 113                                      unsigned short uart,
 114                                      unsigned short reg,
 115                                      u16 data)
 116 {
 117         u16 value = (data << 8) | reg;
 118
 119         return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 120                                QT_SET_GET_REGISTER, 0x40, value, uart,
 121                                NULL, 0, 300);
 122
 123 }
 124
 125 #define set_mctrl(dev, set)             update_mctrl((dev), (set), 0)
 126 #define clear_mctrl(dev, clear) update_mctrl((dev), 0, (clear))
 127
 128 /* these do not deal with device that have more than 1 port */
 129 static inline int update_mctrl(struct usb_device *dev, unsigned int set,
 130                                unsigned int clear)
 131 {
 132         unsigned urb_value;
 133         int result;
 134
 135         if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
 136                 dev_dbg(&dev->dev, "%s - DTR|RTS not being set|cleared\n", __func__);
 137                 return 0;       /* no change */
 138         }
 139
 140         clear &= ~set;  /* 'set' takes precedence over 'clear' */
 141         urb_value = 0;
 142         if (set & TIOCM_DTR)
 143                 urb_value |= UART_MCR_DTR;
 144         if (set & TIOCM_RTS)
 145                 urb_value |= UART_MCR_RTS;
 146
 147         result = ssu100_setregister(dev, 0, UART_MCR, urb_value);
 148         if (result < 0)
 149                 dev_dbg(&dev->dev, "%s Error from MODEM_CTRL urb\n", __func__);
 150
 151         return result;
 152 }
 153
 154 static int ssu100_initdevice(struct usb_device *dev)
 155 {
 156         u8 *data;
 157         int result = 0;
 158
 159         data = kzalloc(3, GFP_KERNEL);
 160         if (!data)
 161                 return -ENOMEM;
 162
 163         result = ssu100_getdevice(dev, data);
 164         if (result < 0) {
 165                 dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
 166                 goto out;
 167         }
 168
 169         data[1] &= ~FULLPWRBIT;
 170
 171         result = ssu100_setdevice(dev, data);
 172         if (result < 0) {
 173                 dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
 174                 goto out;
 175         }
 176
 177         result = ssu100_control_msg(dev, QT_GET_SET_PREBUF_TRIG_LVL, 128, 0);
 178         if (result < 0) {
 179                 dev_dbg(&dev->dev, "%s - set prebuffer level failed %i\n", __func__, result);
 180                 goto out;
 181         }
 182
 183         result = ssu100_control_msg(dev, QT_SET_ATF, ATC_DISABLED, 0);
 184         if (result < 0) {
 185                 dev_dbg(&dev->dev, "%s - set ATFprebuffer level failed %i\n", __func__, result);
 186                 goto out;
 187         }
 188
 189         result = ssu100_getdevice(dev, data);
 190         if (result < 0) {
 191                 dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
 192                 goto out;
 193         }
 194
 195         data[0] &= ~(RR_BITS | DUPMODE_BITS);
 196         data[0] |= CLKS_X4;
 197         data[1] &= ~(LOOPMODE_BITS);
 198         data[1] |= RS232_MODE;
 199
 200         result = ssu100_setdevice(dev, data);
 201         if (result < 0) {
 202                 dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
 203                 goto out;
 204         }
 205
 206 out:    kfree(data);
 207         return result;
 208
 209 }
 210
 211
 212 static void ssu100_set_termios(struct tty_struct *tty,
 213                                struct usb_serial_port *port,
 214                                struct ktermios *old_termios)
 215 {
 216         struct usb_device *dev = port->serial->dev;
 217         struct ktermios *termios = &tty->termios;
 218         u16 baud, divisor, remainder;
 219         unsigned int cflag = termios->c_cflag;
 220         u16 urb_value = 0; /* will hold the new flags */
 221         int result;
 222
 223         if (cflag & PARENB) {
 224                 if (cflag & PARODD)
 225                         urb_value |= UART_LCR_PARITY;
 226                 else
 227                         urb_value |= SERIAL_EVEN_PARITY;
 228         }
 229
 230         switch (cflag & CSIZE) {
 231         case CS5:
 232                 urb_value |= UART_LCR_WLEN5;
 233                 break;
 234         case CS6:
 235                 urb_value |= UART_LCR_WLEN6;
 236                 break;
 237         case CS7:
 238                 urb_value |= UART_LCR_WLEN7;
 239                 break;
 240         default:
 241         case CS8:
 242                 urb_value |= UART_LCR_WLEN8;
 243                 break;
 244         }
 245
 246         baud = tty_get_baud_rate(tty);
 247         if (!baud)
 248                 baud = 9600;
 249
 250         dev_dbg(&port->dev, "%s - got baud = %d\n", __func__, baud);
 251
 252
 253         divisor = MAX_BAUD_RATE / baud;
 254         remainder = MAX_BAUD_RATE % baud;
 255         if (((remainder * 2) >= baud) && (baud != 110))
 256                 divisor++;
 257
 258         urb_value = urb_value << 8;
 259
 260         result = ssu100_control_msg(dev, QT_GET_SET_UART, divisor, urb_value);
 261         if (result < 0)
 262                 dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
 263
 264         if (cflag & CRTSCTS)
 265                 result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
 266                                             SERIAL_CRTSCTS, 0);
 267         else
 268                 result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
 269                                             0, 0);
 270         if (result < 0)
 271                 dev_dbg(&port->dev, "%s - set HW flow control failed\n", __func__);
 272
 273         if (I_IXOFF(tty) || I_IXON(tty)) {
 274                 u16 x = ((u16)(START_CHAR(tty) << 8) | (u16)(STOP_CHAR(tty)));
 275
 276                 result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK,
 277                                             x, 0);
 278         } else
 279                 result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK,
 280                                             0, 0);
 281
 282         if (result < 0)
 283                 dev_dbg(&port->dev, "%s - set SW flow control failed\n", __func__);
 284
 285 }
 286
 287
 288 static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port)
 289 {
 290         struct usb_device *dev = port->serial->dev;
 291         struct ssu100_port_private *priv = usb_get_serial_port_data(port);
 292         u8 *data;
 293         int result;
 294         unsigned long flags;
 295
 296         data = kzalloc(2, GFP_KERNEL);
 297         if (!data)
 298                 return -ENOMEM;
 299
 300         result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 301                                  QT_OPEN_CLOSE_CHANNEL,
 302                                  QT_TRANSFER_IN, 0x01,
 303                                  0, data, 2, 300);
 304         if (result < 0) {
 305                 dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result);
 306                 kfree(data);
 307                 return result;
 308         }
 309
 310         spin_lock_irqsave(&priv->status_lock, flags);
 311         priv->shadowLSR = data[0];
 312         priv->shadowMSR = data[1];
 313         spin_unlock_irqrestore(&priv->status_lock, flags);
 314
 315         kfree(data);
 316
 317 /* set to 9600 */
 318         result = ssu100_control_msg(dev, QT_GET_SET_UART, 0x30, 0x0300);
 319         if (result < 0)
 320                 dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
 321
 322         if (tty)
 323                 ssu100_set_termios(tty, port, &tty->termios);
 324
 325         return usb_serial_generic_open(tty, port);
 326 }
 327
 328 static void ssu100_close(struct usb_serial_port *port)
 329 {
 330         usb_serial_generic_close(port);
 331 }
 332
 333 static int get_serial_info(struct usb_serial_port *port,
 334                            struct serial_struct __user *retinfo)
 335 {
 336         struct serial_struct tmp;
 337
 338         if (!retinfo)
 339                 return -EFAULT;
 340
 341         memset(&tmp, 0, sizeof(tmp));
 342         tmp.line                = port->serial->minor;
 343         tmp.port                = 0;
 344         tmp.irq                 = 0;
 345         tmp.flags               = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
 346         tmp.xmit_fifo_size      = port->bulk_out_size;
 347         tmp.baud_base           = 9600;
 348         tmp.close_delay         = 5*HZ;
 349         tmp.closing_wait        = 30*HZ;
 350
 351         if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
 352                 return -EFAULT;
 353         return 0;
 354 }
 355
 356 static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
 357 {
 358         struct ssu100_port_private *priv = usb_get_serial_port_data(port);
 359         struct async_icount prev, cur;
 360         unsigned long flags;
 361
 362         spin_lock_irqsave(&priv->status_lock, flags);
 363         prev = priv->icount;
 364         spin_unlock_irqrestore(&priv->status_lock, flags);
 365
 366         while (1) {
 367                 wait_event_interruptible(priv->delta_msr_wait,
 368                                          ((priv->icount.rng != prev.rng) ||
 369                                           (priv->icount.dsr != prev.dsr) ||
 370                                           (priv->icount.dcd != prev.dcd) ||
 371                                           (priv->icount.cts != prev.cts)));
 372
 373                 if (signal_pending(current))
 374                         return -ERESTARTSYS;
 375
 376                 spin_lock_irqsave(&priv->status_lock, flags);
 377                 cur = priv->icount;
 378                 spin_unlock_irqrestore(&priv->status_lock, flags);
 379
 380                 if ((prev.rng == cur.rng) &&
 381                     (prev.dsr == cur.dsr) &&
 382                     (prev.dcd == cur.dcd) &&
 383                     (prev.cts == cur.cts))
 384                         return -EIO;
 385
 386                 if ((arg & TIOCM_RNG && (prev.rng != cur.rng)) ||
 387                     (arg & TIOCM_DSR && (prev.dsr != cur.dsr)) ||
 388                     (arg & TIOCM_CD  && (prev.dcd != cur.dcd)) ||
 389                     (arg & TIOCM_CTS && (prev.cts != cur.cts)))
 390                         return 0;
 391         }
 392         return 0;
 393 }
 394
 395 static int ssu100_get_icount(struct tty_struct *tty,
 396                         struct serial_icounter_struct *icount)
 397 {
 398         struct usb_serial_port *port = tty->driver_data;
 399         struct ssu100_port_private *priv = usb_get_serial_port_data(port);
 400         struct async_icount cnow = priv->icount;
 401
 402         icount->cts = cnow.cts;
 403         icount->dsr = cnow.dsr;
 404         icount->rng = cnow.rng;
 405         icount->dcd = cnow.dcd;
 406         icount->rx = cnow.rx;
 407         icount->tx = cnow.tx;
 408         icount->frame = cnow.frame;
 409         icount->overrun = cnow.overrun;
 410         icount->parity = cnow.parity;
 411         icount->brk = cnow.brk;
 412         icount->buf_overrun = cnow.buf_overrun;
 413
 414         return 0;
 415 }
 416
 417
 418
 419 static int ssu100_ioctl(struct tty_struct *tty,
 420                     unsigned int cmd, unsigned long arg)
 421 {
 422         struct usb_serial_port *port = tty->driver_data;
 423
 424         dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
 425
 426         switch (cmd) {
 427         case TIOCGSERIAL:
 428                 return get_serial_info(port,
 429                                        (struct serial_struct __user *) arg);
 430
 431         case TIOCMIWAIT:
 432                 return wait_modem_info(port, arg);
 433
 434         default:
 435                 break;
 436         }
 437
 438         dev_dbg(&port->dev, "%s arg not supported\n", __func__);
 439
 440         return -ENOIOCTLCMD;
 441 }
 442
 443 static int ssu100_attach(struct usb_serial *serial)
 444 {
 445         struct ssu100_port_private *priv;
 446         struct usb_serial_port *port = *serial->port;
 447
 448         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 449         if (!priv) {
 450                 dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
 451                         sizeof(*priv));
 452                 return -ENOMEM;
 453         }
 454
 455         spin_lock_init(&priv->status_lock);
 456         init_waitqueue_head(&priv->delta_msr_wait);
 457         usb_set_serial_port_data(port, priv);
 458
 459         return ssu100_initdevice(serial->dev);
 460 }
 461
 462 static int ssu100_tiocmget(struct tty_struct *tty)
 463 {
 464         struct usb_serial_port *port = tty->driver_data;
 465         struct usb_device *dev = port->serial->dev;
 466         u8 *d;
 467         int r;
 468
 469         d = kzalloc(2, GFP_KERNEL);
 470         if (!d)
 471                 return -ENOMEM;
 472
 473         r = ssu100_getregister(dev, 0, UART_MCR, d);
 474         if (r < 0)
 475                 goto mget_out;
 476
 477         r = ssu100_getregister(dev, 0, UART_MSR, d+1);
 478         if (r < 0)
 479                 goto mget_out;
 480
 481         r = (d[0] & UART_MCR_DTR ? TIOCM_DTR : 0) |
 482                 (d[0] & UART_MCR_RTS ? TIOCM_RTS : 0) |
 483                 (d[1] & UART_MSR_CTS ? TIOCM_CTS : 0) |
 484                 (d[1] & UART_MSR_DCD ? TIOCM_CAR : 0) |
 485                 (d[1] & UART_MSR_RI ? TIOCM_RI : 0) |
 486                 (d[1] & UART_MSR_DSR ? TIOCM_DSR : 0);
 487
 488 mget_out:
 489         kfree(d);
 490         return r;
 491 }
 492
 493 static int ssu100_tiocmset(struct tty_struct *tty,
 494                            unsigned int set, unsigned int clear)
 495 {
 496         struct usb_serial_port *port = tty->driver_data;
 497         struct usb_device *dev = port->serial->dev;
 498
 499         return update_mctrl(dev, set, clear);
 500 }
 501
 502 static void ssu100_dtr_rts(struct usb_serial_port *port, int on)
 503 {
 504         struct usb_device *dev = port->serial->dev;
 505
 506         mutex_lock(&port->serial->disc_mutex);
 507         if (!port->serial->disconnected) {
 508                 /* Disable flow control */
 509                 if (!on &&
 510                     ssu100_setregister(dev, 0, UART_MCR, 0) < 0)
 511                         dev_err(&port->dev, "error from flowcontrol urb\n");
 512                 /* drop RTS and DTR */
 513                 if (on)
 514                         set_mctrl(dev, TIOCM_DTR | TIOCM_RTS);
 515                 else
 516                         clear_mctrl(dev, TIOCM_DTR | TIOCM_RTS);
 517         }
 518         mutex_unlock(&port->serial->disc_mutex);
 519 }
 520
 521 static void ssu100_update_msr(struct usb_serial_port *port, u8 msr)
 522 {
 523         struct ssu100_port_private *priv = usb_get_serial_port_data(port);
 524         unsigned long flags;
 525
 526         spin_lock_irqsave(&priv->status_lock, flags);
 527         priv->shadowMSR = msr;
 528         spin_unlock_irqrestore(&priv->status_lock, flags);
 529
 530         if (msr & UART_MSR_ANY_DELTA) {
 531                 /* update input line counters */
 532                 if (msr & UART_MSR_DCTS)
 533                         priv->icount.cts++;
 534                 if (msr & UART_MSR_DDSR)
 535                         priv->icount.dsr++;
 536                 if (msr & UART_MSR_DDCD)
 537                         priv->icount.dcd++;
 538                 if (msr & UART_MSR_TERI)
 539                         priv->icount.rng++;
 540                 wake_up_interruptible(&priv->delta_msr_wait);
 541         }
 542 }
 543
 544 static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr,
 545                               char *tty_flag)
 546 {
 547         struct ssu100_port_private *priv = usb_get_serial_port_data(port);
 548         unsigned long flags;
 549
 550         spin_lock_irqsave(&priv->status_lock, flags);
 551         priv->shadowLSR = lsr;
 552         spin_unlock_irqrestore(&priv->status_lock, flags);
 553
 554         *tty_flag = TTY_NORMAL;
 555         if (lsr & UART_LSR_BRK_ERROR_BITS) {
 556                 /* we always want to update icount, but we only want to
 557                  * update tty_flag for one case */
 558                 if (lsr & UART_LSR_BI) {
 559                         priv->icount.brk++;
 560                         *tty_flag = TTY_BREAK;
 561                         usb_serial_handle_break(port);
 562                 }
 563                 if (lsr & UART_LSR_PE) {
 564                         priv->icount.parity++;
 565                         if (*tty_flag == TTY_NORMAL)
 566                                 *tty_flag = TTY_PARITY;
 567                 }
 568                 if (lsr & UART_LSR_FE) {
 569                         priv->icount.frame++;
 570                         if (*tty_flag == TTY_NORMAL)
 571                                 *tty_flag = TTY_FRAME;
 572                 }
 573                 if (lsr & UART_LSR_OE){
 574                         priv->icount.overrun++;
 575                         if (*tty_flag == TTY_NORMAL)
 576                                 *tty_flag = TTY_OVERRUN;
 577                 }
 578         }
 579
 580 }
 581
 582 static int ssu100_process_packet(struct urb *urb,
 583                                  struct tty_struct *tty)
 584 {
 585         struct usb_serial_port *port = urb->context;
 586         char *packet = (char *)urb->transfer_buffer;
 587         char flag = TTY_NORMAL;
 588         u32 len = urb->actual_length;
 589         int i;
 590         char *ch;
 591
 592         if ((len >= 4) &&
 593             (packet[0] == 0x1b) && (packet[1] == 0x1b) &&
 594             ((packet[2] == 0x00) || (packet[2] == 0x01))) {
 595                 if (packet[2] == 0x00) {
 596                         ssu100_update_lsr(port, packet[3], &flag);
 597                         if (flag == TTY_OVERRUN)
 598                                 tty_insert_flip_char(tty, 0, TTY_OVERRUN);
 599                 }
 600                 if (packet[2] == 0x01)
 601                         ssu100_update_msr(port, packet[3]);
 602
 603                 len -= 4;
 604                 ch = packet + 4;
 605         } else
 606                 ch = packet;
 607
 608         if (!len)
 609                 return 0;       /* status only */
 610
 611         if (port->port.console && port->sysrq) {
 612                 for (i = 0; i < len; i++, ch++) {
 613                         if (!usb_serial_handle_sysrq_char(port, *ch))
 614                                 tty_insert_flip_char(tty, *ch, flag);
 615                 }
 616         } else
 617                 tty_insert_flip_string_fixed_flag(tty, ch, flag, len);
 618
 619         return len;
 620 }
 621
 622 static void ssu100_process_read_urb(struct urb *urb)
 623 {
 624         struct usb_serial_port *port = urb->context;
 625         struct tty_struct *tty;
 626         int count;
 627
 628         tty = tty_port_tty_get(&port->port);
 629         if (!tty)
 630                 return;
 631
 632         count = ssu100_process_packet(urb, tty);
 633
 634         if (count)
 635                 tty_flip_buffer_push(tty);
 636         tty_kref_put(tty);
 637 }
 638
 639 static struct usb_serial_driver ssu100_device = {
 640         .driver = {
 641                 .owner = THIS_MODULE,
 642                 .name = "ssu100",
 643         },
 644         .description         = DRIVER_DESC,
 645         .id_table            = id_table,
 646         .num_ports           = 1,
 647         .open                = ssu100_open,
 648         .close               = ssu100_close,
 649         .attach              = ssu100_attach,
 650         .release             = ssu100_release,
 651         .dtr_rts             = ssu100_dtr_rts,
 652         .process_read_urb    = ssu100_process_read_urb,
 653         .tiocmget            = ssu100_tiocmget,
 654         .tiocmset            = ssu100_tiocmset,
 655         .get_icount          = ssu100_get_icount,
 656         .ioctl               = ssu100_ioctl,
 657         .set_termios         = ssu100_set_termios,
 658         .disconnect          = usb_serial_generic_disconnect,
 659 };
 660
 661 static struct usb_serial_driver * const serial_drivers[] = {
 662         &ssu100_device, NULL
 663 };
 664
 665 module_usb_serial_driver(serial_drivers, id_table);
 666
 667 MODULE_DESCRIPTION(DRIVER_DESC);
 668 MODULE_LICENSE("GPL");