drivers/usb/misc/uss720.c

   1 /*****************************************************************************/
   2
   3 /*
   4  *      uss720.c  --  USS720 USB Parport Cable.
   5  *
   6  *      Copyright (C) 1999
   7  *          Thomas Sailer (sailer@ife.ee.ethz.ch)
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  *
  23  *  Based on parport_pc.c
  24  *
  25  *  History:
  26  *   0.1  04.08.99  Created
  27  *   0.2  07.08.99  Some fixes mainly suggested by Tim Waugh
  28  *                  Interrupt handling currently disabled because
  29  *                  usb_request_irq crashes somewhere within ohci.c
  30  *                  for no apparent reason (that is for me, anyway)
  31  *                  ECP currently untested
  32  *   0.3  10.08.99  fixing merge errors
  33  *   0.4  13.08.99  Added Vendor/Product ID of Brad Hard's cable
  34  *   0.5  20.09.99  usb_control_msg wrapper used
  35  *        Nov01.00  usb_device_table support by Adam J. Richter
  36  *        08.04.01  Identify version on module load.  gb
  37  *
  38  */
  39
  40 /*****************************************************************************/
  41
  42 #include <linux/module.h>
  43 #include <linux/socket.h>
  44 #include <linux/parport.h>
  45 #include <linux/init.h>
  46 #include <linux/usb.h>
  47 #include <linux/delay.h>
  48
  49 /*
  50  * Version Information
  51  */
  52 #define DRIVER_VERSION "v0.5"
  53 #define DRIVER_AUTHOR "Thomas M. Sailer, sailer@ife.ee.ethz.ch"
  54 #define DRIVER_DESC "USB Parport Cable driver for Cables using the Lucent Technologies USS720 Chip"
  55
  56 /* --------------------------------------------------------------------- */
  57
  58 struct parport_uss720_private {
  59         struct usb_device *usbdev;
  60         void *irqhandle;
  61         unsigned int irqpipe;
  62         unsigned char reg[7];  /* USB registers */
  63 };
  64
  65 /* --------------------------------------------------------------------- */
  66
  67 static int get_1284_register(struct parport *pp, unsigned char reg, unsigned char *val)
  68 {
  69         struct parport_uss720_private *priv = pp->private_data;
  70         struct usb_device *usbdev = priv->usbdev;
  71         static const unsigned char regindex[9] = {
  72                 4, 0, 1, 5, 5, 0, 2, 3, 6
  73         };
  74         int ret;
  75
  76         if (!usbdev)
  77                 return -1;
  78         ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev,0), 3, 0xc0, ((unsigned int)reg) << 8, 0, priv->reg, 7, 1000);
  79         if (ret != 7) {
  80                 printk(KERN_DEBUG "uss720: get_1284_register(%d) failed, status 0x%x expected 7\n",
  81                        (unsigned int)reg, ret);
  82                 ret = -1;
  83         } else {
  84 #if 0
  85                 printk(KERN_DEBUG "uss720: get_1284_register(%d) return %02x %02x %02x %02x %02x %02x %02x\n",
  86                        (unsigned int)reg, (unsigned int)priv->reg[0], (unsigned int)priv->reg[1],
  87                        (unsigned int)priv->reg[2], (unsigned int)priv->reg[3], (unsigned int)priv->reg[4],
  88                        (unsigned int)priv->reg[5], (unsigned int)priv->reg[6]);
  89 #endif
  90                 /* if nAck interrupts are enabled and we have an interrupt, call the interrupt procedure */
  91                 if (priv->reg[2] & priv->reg[1] & 0x10)
  92                         parport_generic_irq(0, pp, NULL);
  93                 ret = 0;
  94         }
  95         if (val)
  96                 *val = priv->reg[(reg >= 9) ? 0 : regindex[reg]];
  97         return ret;
  98 }
  99
 100 static int set_1284_register(struct parport *pp, unsigned char reg, unsigned char val)
 101 {
 102         struct parport_uss720_private *priv = pp->private_data;
 103         struct usb_device *usbdev = priv->usbdev;
 104         int ret;
 105
 106         if (!usbdev)
 107                 return -1;
 108         ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev,0), 4, 0x40, (((unsigned int)reg) << 8) | val, 0, NULL, 0, 1000);
 109         if (ret) {
 110                 printk(KERN_DEBUG "uss720: set_1284_register(%u,0x%02x) failed, status 0x%x\n",
 111                        (unsigned int)reg, (unsigned int)val, ret);
 112         } else {
 113 #if 0
 114                 printk(KERN_DEBUG "uss720: set_1284_register(%u,0x%02x)\n",
 115                        (unsigned int)reg, (unsigned int)val);
 116 #endif
 117         }
 118         return ret;
 119 }
 120
 121 /* --------------------------------------------------------------------- */
 122
 123 /* ECR modes */
 124 #define ECR_SPP 00
 125 #define ECR_PS2 01
 126 #define ECR_PPF 02
 127 #define ECR_ECP 03
 128 #define ECR_EPP 04
 129
 130 /* Safely change the mode bits in the ECR */
 131 static int change_mode(struct parport *pp, int m)
 132 {
 133         struct parport_uss720_private *priv = pp->private_data;
 134         int mode;
 135
 136         if (get_1284_register(pp, 6, NULL))
 137                 return -EIO;
 138         /* Bits <7:5> contain the mode. */
 139         mode = (priv->reg[2] >> 5) & 0x7;
 140         if (mode == m)
 141                 return 0;
 142         /* We have to go through mode 000 or 001 */
 143         if (mode > ECR_PS2 && m > ECR_PS2)
 144                 if (change_mode(pp, ECR_PS2))
 145                         return -EIO;
 146
 147         if (m <= ECR_PS2 && !(priv->reg[1] & 0x20)) {
 148                 /* This mode resets the FIFO, so we may
 149                  * have to wait for it to drain first. */
 150                 unsigned long expire = jiffies + pp->physport->cad->timeout;
 151                 switch (mode) {
 152                 case ECR_PPF: /* Parallel Port FIFO mode */
 153                 case ECR_ECP: /* ECP Parallel Port mode */
 154                         /* Poll slowly. */
 155                         for (;;) {
 156                                 if (get_1284_register(pp, 6, NULL))
 157                                         return -EIO;
 158                                 if (priv->reg[2] & 0x01)
 159                                         break;
 160                                 if (time_after_eq (jiffies, expire))
 161                                         /* The FIFO is stuck. */
 162                                         return -EBUSY;
 163                                 msleep_interruptible(10);
 164                                 if (signal_pending (current))
 165                                         break;
 166                         }
 167                 }
 168         }
 169         /* Set the mode. */
 170         if (set_1284_register(pp, 6, m << 5))
 171                 return -EIO;
 172         return 0;
 173 }
 174
 175 /*
 176  * Clear TIMEOUT BIT in EPP MODE
 177  */
 178 static int clear_epp_timeout(struct parport *pp)
 179 {
 180         unsigned char stat;
 181
 182         if (get_1284_register(pp, 1, &stat))
 183                 return 1;
 184         return stat & 1;
 185 }
 186
 187 /*
 188  * Access functions.
 189  */
 190 #if 0
 191 static int uss720_irq(int usbstatus, void *buffer, int len, void *dev_id)
 192 {
 193         struct parport *pp = (struct parport *)dev_id;
 194         struct parport_uss720_private *priv = pp->private_data;
 195
 196         if (usbstatus != 0 || len < 4 || !buffer)
 197                 return 1;
 198         memcpy(priv->reg, buffer, 4);
 199         /* if nAck interrupts are enabled and we have an interrupt, call the interrupt procedure */
 200         if (priv->reg[2] & priv->reg[1] & 0x10)
 201                 parport_generic_irq(0, pp, NULL);
 202         return 1;
 203 }
 204 #endif
 205
 206 static void parport_uss720_write_data(struct parport *pp, unsigned char d)
 207 {
 208         set_1284_register(pp, 0, d);
 209 }
 210
 211 static unsigned char parport_uss720_read_data(struct parport *pp)
 212 {
 213         unsigned char ret;
 214
 215         if (get_1284_register(pp, 0, &ret))
 216                 return 0;
 217         return ret;
 218 }
 219
 220 static void parport_uss720_write_control(struct parport *pp, unsigned char d)
 221 {
 222         struct parport_uss720_private *priv = pp->private_data;
 223
 224         d = (d & 0xf) | (priv->reg[1] & 0xf0);
 225         if (set_1284_register(pp, 2, d))
 226                 return;
 227         priv->reg[1] = d;
 228 }
 229
 230 static unsigned char parport_uss720_read_control(struct parport *pp)
 231 {
 232         struct parport_uss720_private *priv = pp->private_data;
 233         return priv->reg[1] & 0xf; /* Use soft copy */
 234 }
 235
 236 static unsigned char parport_uss720_frob_control(struct parport *pp, unsigned char mask, unsigned char val)
 237 {
 238         struct parport_uss720_private *priv = pp->private_data;
 239         unsigned char d;
 240
 241         mask &= 0x0f;
 242         val &= 0x0f;
 243         d = (priv->reg[1] & (~mask)) ^ val;
 244         if (set_1284_register(pp, 2, d))
 245                 return 0;
 246         priv->reg[1] = d;
 247         return d & 0xf;
 248 }
 249
 250 static unsigned char parport_uss720_read_status(struct parport *pp)
 251 {
 252         unsigned char ret;
 253
 254         if (get_1284_register(pp, 1, &ret))
 255                 return 0;
 256         return ret & 0xf8;
 257 }
 258
 259 static void parport_uss720_disable_irq(struct parport *pp)
 260 {
 261         struct parport_uss720_private *priv = pp->private_data;
 262         unsigned char d;
 263
 264         d = priv->reg[1] & ~0x10;
 265         if (set_1284_register(pp, 2, d))
 266                 return;
 267         priv->reg[1] = d;
 268 }
 269
 270 static void parport_uss720_enable_irq(struct parport *pp)
 271 {
 272         struct parport_uss720_private *priv = pp->private_data;
 273         unsigned char d;
 274
 275         d = priv->reg[1] | 0x10;
 276         if (set_1284_register(pp, 2, d))
 277                 return;
 278         priv->reg[1] = d;
 279 }
 280
 281 static void parport_uss720_data_forward (struct parport *pp)
 282 {
 283         struct parport_uss720_private *priv = pp->private_data;
 284         unsigned char d;
 285
 286         d = priv->reg[1] & ~0x20;
 287         if (set_1284_register(pp, 2, d))
 288                 return;
 289         priv->reg[1] = d;
 290 }
 291
 292 static void parport_uss720_data_reverse (struct parport *pp)
 293 {
 294         struct parport_uss720_private *priv = pp->private_data;
 295         unsigned char d;
 296
 297         d = priv->reg[1] | 0x20;
 298         if (set_1284_register(pp, 2, d))
 299                 return;
 300         priv->reg[1] = d;
 301 }
 302
 303 static void parport_uss720_init_state(struct pardevice *dev, struct parport_state *s)
 304 {
 305         s->u.pc.ctr = 0xc | (dev->irq_func ? 0x10 : 0x0);
 306         s->u.pc.ecr = 0x24;
 307 }
 308
 309 static void parport_uss720_save_state(struct parport *pp, struct parport_state *s)
 310 {
 311         struct parport_uss720_private *priv = pp->private_data;
 312
 313         if (get_1284_register(pp, 2, NULL))
 314                 return;
 315         s->u.pc.ctr = priv->reg[1];
 316         s->u.pc.ecr = priv->reg[2];
 317 }
 318
 319 static void parport_uss720_restore_state(struct parport *pp, struct parport_state *s)
 320 {
 321         set_1284_register(pp, 2, s->u.pc.ctr);
 322         set_1284_register(pp, 6, s->u.pc.ecr);
 323         get_1284_register(pp, 2, NULL);
 324 }
 325
 326 static size_t parport_uss720_epp_read_data(struct parport *pp, void *buf, size_t length, int flags)
 327 {
 328         struct parport_uss720_private *priv = pp->private_data;
 329         size_t got = 0;
 330
 331         if (change_mode(pp, ECR_EPP))
 332                 return 0;
 333         for (; got < length; got++) {
 334                 if (get_1284_register(pp, 4, (char *)buf))
 335                         break;
 336                 buf++;
 337                 if (priv->reg[0] & 0x01) {
 338                         clear_epp_timeout(pp);
 339                         break;
 340                 }
 341         }
 342         change_mode(pp, ECR_PS2);
 343         return got;
 344 }
 345
 346 static size_t parport_uss720_epp_write_data(struct parport *pp, const void *buf, size_t length, int flags)
 347 {
 348 #if 0
 349         struct parport_uss720_private *priv = pp->private_data;
 350         size_t written = 0;
 351
 352         if (change_mode(pp, ECR_EPP))
 353                 return 0;
 354         for (; written < length; written++) {
 355                 if (set_1284_register(pp, 4, (char *)buf))
 356                         break;
 357                 ((char*)buf)++;
 358                 if (get_1284_register(pp, 1, NULL))
 359                         break;
 360                 if (priv->reg[0] & 0x01) {
 361                         clear_epp_timeout(pp);
 362                         break;
 363                 }
 364         }
 365         change_mode(pp, ECR_PS2);
 366         return written;
 367 #else
 368         struct parport_uss720_private *priv = pp->private_data;
 369         struct usb_device *usbdev = priv->usbdev;
 370         int rlen;
 371         int i;
 372
 373         if (!usbdev)
 374                 return 0;
 375         if (change_mode(pp, ECR_EPP))
 376                 return 0;
 377         i = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 1), (void *)buf, length, &rlen, 20000);
 378         if (i)
 379                 printk(KERN_ERR "uss720: sendbulk ep 1 buf %p len %Zu rlen %u\n", buf, length, rlen);
 380         change_mode(pp, ECR_PS2);
 381         return rlen;
 382 #endif
 383 }
 384
 385 static size_t parport_uss720_epp_read_addr(struct parport *pp, void *buf, size_t length, int flags)
 386 {
 387         struct parport_uss720_private *priv = pp->private_data;
 388         size_t got = 0;
 389
 390         if (change_mode(pp, ECR_EPP))
 391                 return 0;
 392         for (; got < length; got++) {
 393                 if (get_1284_register(pp, 3, (char *)buf))
 394                         break;
 395                 buf++;
 396                 if (priv->reg[0] & 0x01) {
 397                         clear_epp_timeout(pp);
 398                         break;
 399                 }
 400         }
 401         change_mode(pp, ECR_PS2);
 402         return got;
 403 }
 404
 405 static size_t parport_uss720_epp_write_addr(struct parport *pp, const void *buf, size_t length, int flags)
 406 {
 407         struct parport_uss720_private *priv = pp->private_data;
 408         size_t written = 0;
 409
 410         if (change_mode(pp, ECR_EPP))
 411                 return 0;
 412         for (; written < length; written++) {
 413                 if (set_1284_register(pp, 3, *(char *)buf))
 414                         break;
 415                 buf++;
 416                 if (get_1284_register(pp, 1, NULL))
 417                         break;
 418                 if (priv->reg[0] & 0x01) {
 419                         clear_epp_timeout(pp);
 420                         break;
 421                 }
 422         }
 423         change_mode(pp, ECR_PS2);
 424         return written;
 425 }
 426
 427 static size_t parport_uss720_ecp_write_data(struct parport *pp, const void *buffer, size_t len, int flags)
 428 {
 429         struct parport_uss720_private *priv = pp->private_data;
 430         struct usb_device *usbdev = priv->usbdev;
 431         int rlen;
 432         int i;
 433
 434         if (!usbdev)
 435                 return 0;
 436         if (change_mode(pp, ECR_ECP))
 437                 return 0;
 438         i = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 1), (void *)buffer, len, &rlen, 20000);
 439         if (i)
 440                 printk(KERN_ERR "uss720: sendbulk ep 1 buf %p len %Zu rlen %u\n", buffer, len, rlen);
 441         change_mode(pp, ECR_PS2);
 442         return rlen;
 443 }
 444
 445 static size_t parport_uss720_ecp_read_data(struct parport *pp, void *buffer, size_t len, int flags)
 446 {
 447         struct parport_uss720_private *priv = pp->private_data;
 448         struct usb_device *usbdev = priv->usbdev;
 449         int rlen;
 450         int i;
 451
 452         if (!usbdev)
 453                 return 0;
 454         if (change_mode(pp, ECR_ECP))
 455                 return 0;
 456         i = usb_bulk_msg(usbdev, usb_rcvbulkpipe(usbdev, 2), buffer, len, &rlen, 20000);
 457         if (i)
 458                 printk(KERN_ERR "uss720: recvbulk ep 2 buf %p len %Zu rlen %u\n", buffer, len, rlen);
 459         change_mode(pp, ECR_PS2);
 460         return rlen;
 461 }
 462
 463 static size_t parport_uss720_ecp_write_addr(struct parport *pp, const void *buffer, size_t len, int flags)
 464 {
 465         size_t written = 0;
 466
 467         if (change_mode(pp, ECR_ECP))
 468                 return 0;
 469         for (; written < len; written++) {
 470                 if (set_1284_register(pp, 5, *(char *)buffer))
 471                         break;
 472                 buffer++;
 473         }
 474         change_mode(pp, ECR_PS2);
 475         return written;
 476 }
 477
 478 static size_t parport_uss720_write_compat(struct parport *pp, const void *buffer, size_t len, int flags)
 479 {
 480         struct parport_uss720_private *priv = pp->private_data;
 481         struct usb_device *usbdev = priv->usbdev;
 482         int rlen;
 483         int i;
 484
 485         if (!usbdev)
 486                 return 0;
 487         if (change_mode(pp, ECR_PPF))
 488                 return 0;
 489         i = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 1), (void *)buffer, len, &rlen, 20000);
 490         if (i)
 491                 printk(KERN_ERR "uss720: sendbulk ep 1 buf %p len %Zu rlen %u\n", buffer, len, rlen);
 492         change_mode(pp, ECR_PS2);
 493         return rlen;
 494 }
 495
 496 /* --------------------------------------------------------------------- */
 497
 498 static struct parport_operations parport_uss720_ops =
 499 {
 500         .owner =                THIS_MODULE,
 501         .write_data =           parport_uss720_write_data,
 502         .read_data =            parport_uss720_read_data,
 503
 504         .write_control =        parport_uss720_write_control,
 505         .read_control =         parport_uss720_read_control,
 506         .frob_control =         parport_uss720_frob_control,
 507
 508         .read_status =          parport_uss720_read_status,
 509
 510         .enable_irq =           parport_uss720_enable_irq,
 511         .disable_irq =          parport_uss720_disable_irq,
 512
 513         .data_forward =         parport_uss720_data_forward,
 514         .data_reverse =         parport_uss720_data_reverse,
 515
 516         .init_state =           parport_uss720_init_state,
 517         .save_state =           parport_uss720_save_state,
 518         .restore_state =        parport_uss720_restore_state,
 519
 520         .epp_write_data =       parport_uss720_epp_write_data,
 521         .epp_read_data =        parport_uss720_epp_read_data,
 522         .epp_write_addr =       parport_uss720_epp_write_addr,
 523         .epp_read_addr =        parport_uss720_epp_read_addr,
 524
 525         .ecp_write_data =       parport_uss720_ecp_write_data,
 526         .ecp_read_data =        parport_uss720_ecp_read_data,
 527         .ecp_write_addr =       parport_uss720_ecp_write_addr,
 528
 529         .compat_write_data =    parport_uss720_write_compat,
 530         .nibble_read_data =     parport_ieee1284_read_nibble,
 531         .byte_read_data =       parport_ieee1284_read_byte,
 532 };
 533
 534 /* --------------------------------------------------------------------- */
 535
 536 static int uss720_probe(struct usb_interface *intf,
 537                         const struct usb_device_id *id)
 538 {
 539         struct usb_device *usbdev = interface_to_usbdev(intf);
 540         struct usb_host_interface *interface;
 541         struct usb_host_endpoint *endpoint;
 542         struct parport_uss720_private *priv;
 543         struct parport *pp;
 544         int i;
 545
 546         printk(KERN_DEBUG "uss720: probe: vendor id 0x%x, device id 0x%x\n",
 547                le16_to_cpu(usbdev->descriptor.idVendor),
 548                le16_to_cpu(usbdev->descriptor.idProduct));
 549
 550         /* our known interfaces have 3 alternate settings */
 551         if (intf->num_altsetting != 3)
 552                 return -ENODEV;
 553
 554         i = usb_set_interface(usbdev, intf->altsetting->desc.bInterfaceNumber, 2);
 555         printk(KERN_DEBUG "uss720: set inteface result %d\n", i);
 556
 557         interface = intf->cur_altsetting;
 558
 559         /*
 560          * Allocate parport interface
 561          */
 562         printk(KERN_INFO "uss720: (C) 1999 by Thomas Sailer, <sailer@ife.ee.ethz.ch>\n");
 563
 564         if (!(priv = kmalloc(sizeof(struct parport_uss720_private), GFP_KERNEL)))
 565                 return -ENOMEM;
 566         if (!(pp = parport_register_port(0, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &parport_uss720_ops))) {
 567                 printk(KERN_WARNING "usb-uss720: could not register parport\n");
 568                 goto probe_abort;
 569         }
 570
 571         pp->private_data = priv;
 572         priv->usbdev = usbdev;
 573         pp->modes = PARPORT_MODE_PCSPP | PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP | PARPORT_MODE_ECP | PARPORT_MODE_COMPAT;
 574
 575         /* set the USS720 control register to manual mode, no ECP compression, enable all ints */
 576         set_1284_register(pp, 7, 0x00);
 577         set_1284_register(pp, 6, 0x30);  /* PS/2 mode */
 578         set_1284_register(pp, 2, 0x0c);
 579         /* debugging */
 580         get_1284_register(pp, 0, NULL);
 581         printk("uss720: reg: %02x %02x %02x %02x %02x %02x %02x\n",
 582                priv->reg[0], priv->reg[1], priv->reg[2], priv->reg[3], priv->reg[4], priv->reg[5], priv->reg[6]);
 583
 584         endpoint = &interface->endpoint[2];
 585         printk(KERN_DEBUG "uss720: epaddr %d interval %d\n", endpoint->desc.bEndpointAddress, endpoint->desc.bInterval);
 586 #if 0
 587         priv->irqpipe = usb_rcvctrlpipe(usbdev, endpoint->bEndpointAddress);
 588         i = usb_request_irq(usbdev, priv->irqpipe,
 589                                   uss720_irq, endpoint->bInterval,
 590                                   pp, &priv->irqhandle);
 591         if (i) {
 592                 printk (KERN_WARNING "usb-uss720: usb_request_irq failed (0x%x)\n", i);
 593                 goto probe_abort_port;
 594         }
 595 #endif
 596         parport_announce_port(pp);
 597
 598         usb_set_intfdata (intf, pp);
 599         return 0;
 600
 601 #if 0
 602 probe_abort_port:
 603         parport_put_port(pp);
 604 #endif
 605 probe_abort:
 606         kfree(priv);
 607         return -ENODEV;
 608 }
 609
 610 static void uss720_disconnect(struct usb_interface *intf)
 611 {
 612         struct parport *pp = usb_get_intfdata (intf);
 613         struct parport_uss720_private *priv;
 614
 615         usb_set_intfdata (intf, NULL);
 616         if (pp) {
 617                 priv = pp->private_data;
 618                 parport_remove_port(pp);
 619 #if 0
 620                 usb_release_irq(usbdev, priv->irqhandle, priv->irqpipe);
 621 #endif
 622                 priv->usbdev = NULL;
 623                 parport_put_port(pp);
 624                 kfree(priv);
 625         }
 626 }
 627
 628 /* table of cables that work through this driver */
 629 static struct usb_device_id uss720_table [] = {
 630         { USB_DEVICE(0x047e, 0x1001) },
 631         { USB_DEVICE(0x0557, 0x2001) },
 632         { USB_DEVICE(0x0729, 0x1284) },
 633         { USB_DEVICE(0x1293, 0x0002) },
 634         { }                                             /* Terminating entry */
 635 };
 636
 637 MODULE_DEVICE_TABLE (usb, uss720_table);
 638
 639
 640 static struct usb_driver uss720_driver = {
 641         .owner =        THIS_MODULE,
 642         .name =         "uss720",
 643         .probe =        uss720_probe,
 644         .disconnect =   uss720_disconnect,
 645         .id_table =     uss720_table,
 646 };
 647
 648 /* --------------------------------------------------------------------- */
 649
 650 MODULE_AUTHOR( DRIVER_AUTHOR );
 651 MODULE_DESCRIPTION( DRIVER_DESC );
 652 MODULE_LICENSE("GPL");
 653
 654 static int __init uss720_init(void)
 655 {
 656         int retval;
 657         retval = usb_register(&uss720_driver);
 658         if (retval)
 659                 goto out;
 660
 661         info(DRIVER_VERSION ":" DRIVER_DESC);
 662 out:
 663         return retval;
 664 }
 665
 666 static void __exit uss720_cleanup(void)
 667 {
 668         usb_deregister(&uss720_driver);
 669 }
 670
 671 module_init(uss720_init);
 672 module_exit(uss720_cleanup);
 673
 674 /* --------------------------------------------------------------------- */