usr.sbin/usbconfig/usbconfig.c

   1 /* $FreeBSD$ */
   2 /*-
   3  * Copyright (c) 2008-2009 Hans Petter Selasky. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <stdint.h>
  30 #include <err.h>
  31 #include <string.h>
  32 #include <pwd.h>
  33 #include <grp.h>
  34 #include <errno.h>
  35 #include <ctype.h>
  36 #include <sys/types.h>
  37
  38 #include <libusb20_desc.h>
  39 #include <libusb20.h>
  40
  41 #include "dump.h"
  42
  43 struct options {
  44         const char *quirkname;
  45         void   *buffer;
  46         int template;
  47         gid_t   gid;
  48         uid_t   uid;
  49         mode_t  mode;
  50         uint32_t got_any;
  51         struct LIBUSB20_CONTROL_SETUP_DECODED setup;
  52         uint16_t bus;
  53         uint16_t addr;
  54         uint16_t iface;
  55         uint16_t vid;
  56         uint16_t pid;
  57         uint16_t lo_rev;                /* inclusive */
  58         uint16_t hi_rev;                /* inclusive */
  59         uint8_t string_index;
  60         uint8_t config_index;
  61         uint8_t alt_index;
  62         uint8_t got_list:1;
  63         uint8_t got_bus:1;
  64         uint8_t got_addr:1;
  65         uint8_t got_iface:1;
  66         uint8_t got_set_config:1;
  67         uint8_t got_set_alt:1;
  68         uint8_t got_set_template:1;
  69         uint8_t got_get_template:1;
  70         uint8_t got_suspend:1;
  71         uint8_t got_resume:1;
  72         uint8_t got_reset:1;
  73         uint8_t got_power_off:1;
  74         uint8_t got_power_save:1;
  75         uint8_t got_power_on:1;
  76         uint8_t got_dump_device_quirks:1;
  77         uint8_t got_dump_quirk_names:1;
  78         uint8_t got_dump_all_desc:1;
  79         uint8_t got_dump_device_desc:1;
  80         uint8_t got_dump_curr_config:1;
  81         uint8_t got_dump_all_config:1;
  82         uint8_t got_dump_info:1;
  83         uint8_t got_show_iface_driver:1;
  84         uint8_t got_remove_device_quirk:1;
  85         uint8_t got_add_device_quirk:1;
  86         uint8_t got_remove_quirk:1;
  87         uint8_t got_add_quirk:1;
  88         uint8_t got_dump_string:1;
  89         uint8_t got_do_request:1;
  90 };
  91
  92 struct token {
  93         const char *name;
  94         uint8_t value;
  95         uint8_t narg;
  96 };
  97
  98 enum {
  99         T_UNIT,
 100         T_ADDR,
 101         T_UGEN,
 102         T_IFACE,
 103         T_SET_CONFIG,
 104         T_SET_ALT,
 105         T_SET_TEMPLATE,
 106         T_GET_TEMPLATE,
 107         T_ADD_DEVICE_QUIRK,
 108         T_REMOVE_DEVICE_QUIRK,
 109         T_ADD_QUIRK,
 110         T_REMOVE_QUIRK,
 111         T_SHOW_IFACE_DRIVER,
 112         T_DUMP_QUIRK_NAMES,
 113         T_DUMP_DEVICE_QUIRKS,
 114         T_DUMP_ALL_DESC,
 115         T_DUMP_DEVICE_DESC,
 116         T_DUMP_CURR_CONFIG_DESC,
 117         T_DUMP_ALL_CONFIG_DESC,
 118         T_DUMP_STRING,
 119         T_DUMP_INFO,
 120         T_SUSPEND,
 121         T_RESUME,
 122         T_POWER_OFF,
 123         T_POWER_SAVE,
 124         T_POWER_ON,
 125         T_RESET,
 126         T_LIST,
 127         T_DO_REQUEST,
 128 };
 129
 130 static struct options options;
 131
 132 static const struct token token[] = {
 133         {"-u", T_UNIT, 1},
 134         {"-a", T_ADDR, 1},
 135         {"-d", T_UGEN, 1},
 136         {"-i", T_IFACE, 1},
 137         {"set_config", T_SET_CONFIG, 1},
 138         {"set_alt", T_SET_ALT, 1},
 139         {"set_template", T_SET_TEMPLATE, 1},
 140         {"get_template", T_GET_TEMPLATE, 0},
 141         {"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
 142         {"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
 143         {"add_quirk", T_ADD_QUIRK, 1},
 144         {"remove_quirk", T_REMOVE_QUIRK, 1},
 145         {"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
 146         {"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
 147         {"dump_all_desc", T_DUMP_ALL_DESC, 0},
 148         {"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
 149         {"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
 150         {"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
 151         {"dump_string", T_DUMP_STRING, 1},
 152         {"dump_info", T_DUMP_INFO, 0},
 153         {"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
 154         {"suspend", T_SUSPEND, 0},
 155         {"resume", T_RESUME, 0},
 156         {"power_off", T_POWER_OFF, 0},
 157         {"power_save", T_POWER_SAVE, 0},
 158         {"power_on", T_POWER_ON, 0},
 159         {"reset", T_RESET, 0},
 160         {"list", T_LIST, 0},
 161         {"do_request", T_DO_REQUEST, 5},
 162 };
 163
 164 static void
 165 be_dev_remove_quirk(struct libusb20_backend *pbe,
 166     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 167     const char *str)
 168 {
 169         struct libusb20_quirk q;
 170         int error;
 171
 172         memset(&q, 0, sizeof(q));
 173
 174         q.vid = vid;
 175         q.pid = pid;
 176         q.bcdDeviceLow = lorev;
 177         q.bcdDeviceHigh = hirev;
 178         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 179
 180         error = libusb20_be_remove_dev_quirk(pbe, &q);
 181         if (error) {
 182                 fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
 183         }
 184         return;
 185 }
 186
 187 static void
 188 be_dev_add_quirk(struct libusb20_backend *pbe,
 189     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
 190     const char *str)
 191 {
 192         struct libusb20_quirk q;
 193         int error;
 194
 195         memset(&q, 0, sizeof(q));
 196
 197         q.vid = vid;
 198         q.pid = pid;
 199         q.bcdDeviceLow = lorev;
 200         q.bcdDeviceHigh = hirev;
 201         strlcpy(q.quirkname, str, sizeof(q.quirkname));
 202
 203         error = libusb20_be_add_dev_quirk(pbe, &q);
 204         if (error) {
 205                 fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
 206         }
 207         return;
 208 }
 209
 210 static uint8_t
 211 get_token(const char *str, uint8_t narg)
 212 {
 213         uint8_t n;
 214
 215         for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
 216                 if (strcasecmp(str, token[n].name) == 0) {
 217                         if (token[n].narg > narg) {
 218                                 /* too few arguments */
 219                                 break;
 220                         }
 221                         return (token[n].value);
 222                 }
 223         }
 224         return (0 - 1);
 225 }
 226
 227 static uid_t
 228 num_id(const char *name, const char *type)
 229 {
 230         uid_t val;
 231         char *ep;
 232
 233         errno = 0;
 234         val = strtoul(name, &ep, 0);
 235         if (errno) {
 236                 err(1, "%s", name);
 237         }
 238         if (*ep != '\0') {
 239                 errx(1, "%s: illegal %s name", name, type);
 240         }
 241         return (val);
 242 }
 243
 244 static int
 245 get_int(const char *s)
 246 {
 247         int val;
 248         char *ep;
 249
 250         errno = 0;
 251         val = strtoul(s, &ep, 0);
 252         if (errno) {
 253                 err(1, "%s", s);
 254         }
 255         if (*ep != '\0') {
 256                 errx(1, "illegal number: %s", s);
 257         }
 258         return val;
 259 }
 260
 261 static void
 262 duplicate_option(const char *ptr)
 263 {
 264         fprintf(stderr, "Syntax error: "
 265             "Duplicate option: '%s'\n", ptr);
 266         exit(1);
 267 }
 268
 269 static void
 270 usage(void)
 271 {
 272         fprintf(stderr, ""
 273             "usbconfig - configure the USB subsystem" "\n"
 274             "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
 275             "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
 276             "commands:" "\n"
 277             "  set_config <cfg_index>" "\n"
 278             "  set_alt <alt_index>" "\n"
 279             "  set_template <template>" "\n"
 280             "  get_template" "\n"
 281             "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 282             "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
 283             "  add_quirk <quirk>" "\n"
 284             "  remove_quirk <quirk>" "\n"
 285             "  dump_quirk_names" "\n"
 286             "  dump_device_quirks" "\n"
 287             "  dump_all_desc" "\n"
 288             "  dump_device_desc" "\n"
 289             "  dump_curr_config_desc" "\n"
 290             "  dump_all_config_desc" "\n"
 291             "  dump_string <index>" "\n"
 292             "  dump_info" "\n"
 293             "  show_ifdrv" "\n"
 294             "  suspend" "\n"
 295             "  resume" "\n"
 296             "  power_off" "\n"
 297             "  power_save" "\n"
 298             "  power_on" "\n"
 299             "  reset" "\n"
 300             "  list" "\n"
 301             "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
 302         );
 303         exit(1);
 304 }
 305
 306 static void
 307 reset_options(struct options *opt)
 308 {
 309         if (opt->buffer)
 310                 free(opt->buffer);
 311         memset(opt, 0, sizeof(*opt));
 312         return;
 313 }
 314
 315 static void
 316 flush_command(struct libusb20_backend *pbe, struct options *opt)
 317 {
 318         struct libusb20_device *pdev = NULL;
 319         uint32_t matches = 0;
 320         uint8_t dump_any;
 321
 322         /* check for invalid option combinations */
 323         if ((opt->got_suspend +
 324             opt->got_resume +
 325             opt->got_reset +
 326             opt->got_set_config +
 327             opt->got_set_alt +
 328             opt->got_power_save +
 329             opt->got_power_on +
 330             opt->got_power_off) > 1) {
 331                 err(1, "can only specify one of 'set_config', "
 332                     "'set_alt', 'reset', 'suspend', 'resume', "
 333                     "'power_save', 'power_on' and 'power_off' "
 334                     "at the same time!");
 335         }
 336         if (opt->got_dump_quirk_names) {
 337                 opt->got_any--;
 338                 dump_be_quirk_names(pbe);
 339         }
 340         if (opt->got_dump_device_quirks) {
 341                 opt->got_any--;
 342                 dump_be_dev_quirks(pbe);
 343         }
 344         if (opt->got_remove_device_quirk) {
 345                 opt->got_any--;
 346                 be_dev_remove_quirk(pbe,
 347                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 348         }
 349         if (opt->got_add_device_quirk) {
 350                 opt->got_any--;
 351                 be_dev_add_quirk(pbe,
 352                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
 353         }
 354         if (opt->got_set_template) {
 355                 opt->got_any--;
 356                 if (libusb20_be_set_template(pbe, opt->template)) {
 357                         fprintf(stderr, "Setting USB template %u failed, "
 358                             "continuing.\n", opt->template);
 359                 }
 360         }
 361         if (opt->got_get_template) {
 362                 opt->got_any--;
 363                 if (libusb20_be_get_template(pbe, &opt->template))
 364                         printf("USB template: <unknown>\n");
 365                 else
 366                         printf("USB template: %u\n", opt->template);
 367         }
 368         if (opt->got_any == 0) {
 369                 /*
 370                  * do not scan through all the devices if there are no valid
 371                  * options
 372                  */
 373                 goto done;
 374         }
 375         while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
 376
 377                 if (opt->got_bus &&
 378                     (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
 379                         continue;
 380                 }
 381                 if (opt->got_addr &&
 382                     (libusb20_dev_get_address(pdev) != opt->addr)) {
 383                         continue;
 384                 }
 385                 matches++;
 386
 387                 if (opt->got_remove_quirk) {
 388                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 389
 390                         ddesc = libusb20_dev_get_device_desc(pdev);
 391
 392                         be_dev_remove_quirk(pbe,
 393                             ddesc->idVendor, ddesc->idProduct,
 394                             ddesc->bcdDevice, ddesc->bcdDevice,
 395                             opt->quirkname);
 396                 }
 397
 398                 if (opt->got_add_quirk) {
 399                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
 400
 401                         ddesc = libusb20_dev_get_device_desc(pdev);
 402
 403                         be_dev_add_quirk(pbe,
 404                             ddesc->idVendor, ddesc->idProduct,
 405                             ddesc->bcdDevice, ddesc->bcdDevice,
 406                             opt->quirkname);
 407                 }
 408
 409                 if (libusb20_dev_open(pdev, 0)) {
 410                         err(1, "could not open device");
 411                 }
 412                 if (opt->got_dump_string) {
 413                         dump_string_by_index(pdev, opt->string_index);
 414                 }
 415                 if (opt->got_do_request) {
 416                         uint16_t actlen;
 417                         uint16_t t;
 418
 419                         if (libusb20_dev_request_sync(pdev, &opt->setup,
 420                             opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
 421                                 printf("REQUEST = <ERROR>\n");
 422                         } else if (!(opt->setup.bmRequestType &
 423                             LIBUSB20_ENDPOINT_IN)) {
 424                                 printf("REQUEST = <OK>\n");
 425                         } else {
 426                                 t = actlen;
 427                                 printf("REQUEST = <");
 428                                 for (t = 0; t != actlen; t++) {
 429                                         printf("0x%02x%s",
 430                                             ((uint8_t *)opt->buffer)[t],
 431                                             (t == (actlen - 1)) ? "" : " ");
 432                                 }
 433                                 printf("><");
 434                                 for (t = 0; t != actlen; t++) {
 435                                         char c;
 436
 437                                         c = ((uint8_t *)opt->buffer)[t];
 438                                         if ((c != '<') &&
 439                                             (c != '>') && isprint(c)) {
 440                                                 putchar(c);
 441                                         }
 442                                 }
 443                                 printf(">\n");
 444                         }
 445                 }
 446                 if (opt->got_set_config) {
 447                         if (libusb20_dev_set_config_index(pdev,
 448                             opt->config_index)) {
 449                                 err(1, "could not set config index");
 450                         }
 451                 }
 452                 if (opt->got_set_alt) {
 453                         if (libusb20_dev_set_alt_index(pdev, opt->iface,
 454                             opt->alt_index)) {
 455                                 err(1, "could not set alternate setting");
 456                         }
 457                 }
 458                 if (opt->got_reset) {
 459                         if (libusb20_dev_reset(pdev)) {
 460                                 err(1, "could not reset device");
 461                         }
 462                 }
 463                 if (opt->got_suspend) {
 464                         if (libusb20_dev_set_power_mode(pdev,
 465                             LIBUSB20_POWER_SUSPEND)) {
 466                                 err(1, "could not set suspend");
 467                         }
 468                 }
 469                 if (opt->got_resume) {
 470                         if (libusb20_dev_set_power_mode(pdev,
 471                             LIBUSB20_POWER_RESUME)) {
 472                                 err(1, "could not set resume");
 473                         }
 474                 }
 475                 if (opt->got_power_off) {
 476                         if (libusb20_dev_set_power_mode(pdev,
 477                             LIBUSB20_POWER_OFF)) {
 478                                 err(1, "could not set power OFF");
 479                         }
 480                 }
 481                 if (opt->got_power_save) {
 482                         if (libusb20_dev_set_power_mode(pdev,
 483                             LIBUSB20_POWER_SAVE)) {
 484                                 err(1, "could not set power SAVE");
 485                         }
 486                 }
 487                 if (opt->got_power_on) {
 488                         if (libusb20_dev_set_power_mode(pdev,
 489                             LIBUSB20_POWER_ON)) {
 490                                 err(1, "could not set power ON");
 491                         }
 492                 }
 493                 dump_any =
 494                     (opt->got_dump_all_desc ||
 495                     opt->got_dump_device_desc ||
 496                     opt->got_dump_curr_config ||
 497                     opt->got_dump_all_config ||
 498                     opt->got_dump_info);
 499
 500                 if (opt->got_list || dump_any) {
 501                         dump_device_info(pdev,
 502                             opt->got_show_iface_driver);
 503                 }
 504                 if (opt->got_dump_device_desc) {
 505                         printf("\n");
 506                         dump_device_desc(pdev);
 507                 }
 508                 if (opt->got_dump_all_config) {
 509                         printf("\n");
 510                         dump_config(pdev, 1);
 511                 } else if (opt->got_dump_curr_config) {
 512                         printf("\n");
 513                         dump_config(pdev, 0);
 514                 } else if (opt->got_dump_all_desc) {
 515                         printf("\n");
 516                         dump_device_desc(pdev);
 517                         dump_config(pdev, 1);
 518                 }
 519                 if (dump_any) {
 520                         printf("\n");
 521                 }
 522                 if (libusb20_dev_close(pdev)) {
 523                         err(1, "could not close device");
 524                 }
 525         }
 526
 527         if (matches == 0) {
 528                 printf("No device match or lack of permissions.\n");
 529         }
 530 done:
 531         reset_options(opt);
 532
 533         return;
 534 }
 535
 536 int
 537 main(int argc, char **argv)
 538 {
 539         struct libusb20_backend *pbe;
 540         struct options *opt = &options;
 541         const char *ptr;
 542         int unit;
 543         int addr;
 544         int n;
 545         int t;
 546
 547         if (argc < 1) {
 548                 usage();
 549         }
 550         pbe = libusb20_be_alloc_default();
 551         if (pbe == NULL)
 552                 err(1, "could not access USB backend\n");
 553
 554         for (n = 1; n != argc; n++) {
 555
 556                 /* get number of additional options */
 557                 t = (argc - n - 1);
 558                 if (t > 255)
 559                         t = 255;
 560                 switch (get_token(argv[n], t)) {
 561                 case T_ADD_QUIRK:
 562                         if (opt->got_add_quirk) {
 563                                 flush_command(pbe, opt);
 564                         }
 565                         opt->quirkname = argv[n + 1];
 566                         n++;
 567
 568                         opt->got_add_quirk = 1;
 569                         opt->got_any++;
 570                         break;
 571
 572                 case T_REMOVE_QUIRK:
 573                         if (opt->got_remove_quirk) {
 574                                 flush_command(pbe, opt);
 575                         }
 576                         opt->quirkname = argv[n + 1];
 577                         n++;
 578
 579                         opt->got_remove_quirk = 1;
 580                         opt->got_any++;
 581                         break;
 582
 583                 case T_ADD_DEVICE_QUIRK:
 584                         if (opt->got_add_device_quirk) {
 585                                 flush_command(pbe, opt);
 586                         }
 587                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 588                         opt->pid = num_id(argv[n + 2], "Product ID");
 589                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 590                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 591                         opt->quirkname = argv[n + 5];
 592                         n += 5;
 593
 594                         opt->got_add_device_quirk = 1;
 595                         opt->got_any++;
 596                         break;
 597
 598                 case T_REMOVE_DEVICE_QUIRK:
 599                         if (opt->got_remove_device_quirk) {
 600                                 flush_command(pbe, opt);
 601                         }
 602                         opt->vid = num_id(argv[n + 1], "Vendor ID");
 603                         opt->pid = num_id(argv[n + 2], "Product ID");
 604                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
 605                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
 606                         opt->quirkname = argv[n + 5];
 607                         n += 5;
 608                         opt->got_remove_device_quirk = 1;
 609                         opt->got_any++;
 610                         break;
 611
 612                 case T_DUMP_QUIRK_NAMES:
 613                         if (opt->got_dump_quirk_names)
 614                                 duplicate_option(argv[n]);
 615                         opt->got_dump_quirk_names = 1;
 616                         opt->got_any++;
 617                         break;
 618
 619                 case T_DUMP_DEVICE_QUIRKS:
 620                         if (opt->got_dump_device_quirks)
 621                                 duplicate_option(argv[n]);
 622                         opt->got_dump_device_quirks = 1;
 623                         opt->got_any++;
 624                         break;
 625
 626                 case T_SHOW_IFACE_DRIVER:
 627                         opt->got_show_iface_driver = 1;
 628                         break;
 629
 630                 case T_UGEN:
 631                         if (opt->got_any) {
 632                                 /* allow multiple commands on the same line */
 633                                 flush_command(pbe, opt);
 634                         }
 635                         ptr = argv[n + 1];
 636
 637                         if ((ptr[0] == 'u') &&
 638                             (ptr[1] == 'g') &&
 639                             (ptr[2] == 'e') &&
 640                             (ptr[3] == 'n'))
 641                                 ptr += 4;
 642
 643                         if ((sscanf(ptr, "%d.%d",
 644                             &unit, &addr) != 2) ||
 645                             (unit < 0) || (unit > 65535) ||
 646                             (addr < 0) || (addr > 65535)) {
 647                                 errx(1, "cannot "
 648                                     "parse '%s'", argv[n + 1]);
 649                         }
 650                         opt->bus = unit;
 651                         opt->addr = addr;
 652                         opt->got_bus = 1;
 653                         opt->got_addr = 1;
 654                         n++;
 655                         break;
 656
 657                 case T_UNIT:
 658                         if (opt->got_any) {
 659                                 /* allow multiple commands on the same line */
 660                                 flush_command(pbe, opt);
 661                         }
 662                         opt->bus = num_id(argv[n + 1], "busnum");
 663                         opt->got_bus = 1;
 664                         n++;
 665                         break;
 666                 case T_ADDR:
 667                         opt->addr = num_id(argv[n + 1], "addr");
 668                         opt->got_addr = 1;
 669                         n++;
 670                         break;
 671                 case T_IFACE:
 672                         opt->iface = num_id(argv[n + 1], "iface");
 673                         opt->got_iface = 1;
 674                         n++;
 675                         break;
 676                 case T_SET_CONFIG:
 677                         if (opt->got_set_config)
 678                                 duplicate_option(argv[n]);
 679                         opt->config_index = num_id(argv[n + 1], "cfg_index");
 680                         opt->got_set_config = 1;
 681                         opt->got_any++;
 682                         n++;
 683                         break;
 684                 case T_SET_ALT:
 685                         if (opt->got_set_alt)
 686                                 duplicate_option(argv[n]);
 687                         opt->alt_index = num_id(argv[n + 1], "cfg_index");
 688                         opt->got_set_alt = 1;
 689                         opt->got_any++;
 690                         n++;
 691                         break;
 692                 case T_SET_TEMPLATE:
 693                         if (opt->got_set_template)
 694                                 duplicate_option(argv[n]);
 695                         opt->template = get_int(argv[n + 1]);
 696                         opt->got_set_template = 1;
 697                         opt->got_any++;
 698                         n++;
 699                         break;
 700                 case T_GET_TEMPLATE:
 701                         if (opt->got_get_template)
 702                                 duplicate_option(argv[n]);
 703                         opt->got_get_template = 1;
 704                         opt->got_any++;
 705                         break;
 706                 case T_DUMP_ALL_DESC:
 707                         if (opt->got_dump_all_desc)
 708                                 duplicate_option(argv[n]);
 709                         opt->got_dump_all_desc = 1;
 710                         opt->got_any++;
 711                         break;
 712                 case T_DUMP_DEVICE_DESC:
 713                         if (opt->got_dump_device_desc)
 714                                 duplicate_option(argv[n]);
 715                         opt->got_dump_device_desc = 1;
 716                         opt->got_any++;
 717                         break;
 718                 case T_DUMP_CURR_CONFIG_DESC:
 719                         if (opt->got_dump_curr_config)
 720                                 duplicate_option(argv[n]);
 721                         opt->got_dump_curr_config = 1;
 722                         opt->got_any++;
 723                         break;
 724                 case T_DUMP_ALL_CONFIG_DESC:
 725                         if (opt->got_dump_all_config)
 726                                 duplicate_option(argv[n]);
 727                         opt->got_dump_all_config = 1;
 728                         opt->got_any++;
 729                         break;
 730                 case T_DUMP_INFO:
 731                         if (opt->got_dump_info)
 732                                 duplicate_option(argv[n]);
 733                         opt->got_dump_info = 1;
 734                         opt->got_any++;
 735                         break;
 736                 case T_DUMP_STRING:
 737                         if (opt->got_dump_string)
 738                                 duplicate_option(argv[n]);
 739                         opt->string_index = num_id(argv[n + 1], "str_index");
 740                         opt->got_dump_string = 1;
 741                         opt->got_any++;
 742                         n++;
 743                         break;
 744                 case T_SUSPEND:
 745                         if (opt->got_suspend)
 746                                 duplicate_option(argv[n]);
 747                         opt->got_suspend = 1;
 748                         opt->got_any++;
 749                         break;
 750                 case T_RESUME:
 751                         if (opt->got_resume)
 752                                 duplicate_option(argv[n]);
 753                         opt->got_resume = 1;
 754                         opt->got_any++;
 755                         break;
 756                 case T_POWER_OFF:
 757                         if (opt->got_power_off)
 758                                 duplicate_option(argv[n]);
 759                         opt->got_power_off = 1;
 760                         opt->got_any++;
 761                         break;
 762                 case T_POWER_SAVE:
 763                         if (opt->got_power_save)
 764                                 duplicate_option(argv[n]);
 765                         opt->got_power_save = 1;
 766                         opt->got_any++;
 767                         break;
 768                 case T_POWER_ON:
 769                         if (opt->got_power_on)
 770                                 duplicate_option(argv[n]);
 771                         opt->got_power_on = 1;
 772                         opt->got_any++;
 773                         break;
 774                 case T_RESET:
 775                         if (opt->got_reset)
 776                                 duplicate_option(argv[n]);
 777                         opt->got_reset = 1;
 778                         opt->got_any++;
 779                         break;
 780                 case T_LIST:
 781                         if (opt->got_list)
 782                                 duplicate_option(argv[n]);
 783                         opt->got_list = 1;
 784                         opt->got_any++;
 785                         break;
 786                 case T_DO_REQUEST:
 787                         if (opt->got_do_request)
 788                                 duplicate_option(argv[n]);
 789                         LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
 790                         opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
 791                         opt->setup.bRequest = num_id(argv[n + 2], "bReq");
 792                         opt->setup.wValue = num_id(argv[n + 3], "wVal");
 793                         opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
 794                         opt->setup.wLength = num_id(argv[n + 5], "wLen");
 795                         if (opt->setup.wLength != 0) {
 796                                 opt->buffer = malloc(opt->setup.wLength);
 797                         } else {
 798                                 opt->buffer = NULL;
 799                         }
 800
 801                         n += 5;
 802
 803                         if (!(opt->setup.bmRequestType &
 804                             LIBUSB20_ENDPOINT_IN)) {
 805                                 /* copy in data */
 806                                 t = (argc - n - 1);
 807                                 if (t < opt->setup.wLength) {
 808                                         err(1, "request data missing");
 809                                 }
 810                                 t = opt->setup.wLength;
 811                                 while (t--) {
 812                                         ((uint8_t *)opt->buffer)[t] =
 813                                             num_id(argv[n + t + 1], "req_data");
 814                                 }
 815                                 n += opt->setup.wLength;
 816                         }
 817                         opt->got_do_request = 1;
 818                         opt->got_any++;
 819                         break;
 820                 default:
 821                         usage();
 822                         break;
 823                 }
 824         }
 825         if (opt->got_any) {
 826                 /* flush out last command */
 827                 flush_command(pbe, opt);
 828         } else {
 829                 /* list all the devices */
 830                 opt->got_list = 1;
 831                 opt->got_any++;
 832                 flush_command(pbe, opt);
 833         }
 834         /* release data */
 835         libusb20_be_free(pbe);
 836
 837         return (0);
 838 }