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MFC r351146:
[FreeBSD/stable/10.git] / 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         uint8_t got_detach_kernel_driver:1;
91 };
92
93 struct token {
94         const char *name;
95         uint8_t value;
96         uint8_t narg;
97 };
98
99 enum {
100         T_UNIT,
101         T_ADDR,
102         T_UGEN,
103         T_IFACE,
104         T_SET_CONFIG,
105         T_SET_ALT,
106         T_SET_TEMPLATE,
107         T_GET_TEMPLATE,
108         T_ADD_DEVICE_QUIRK,
109         T_REMOVE_DEVICE_QUIRK,
110         T_ADD_QUIRK,
111         T_REMOVE_QUIRK,
112         T_SHOW_IFACE_DRIVER,
113         T_DETACH_KERNEL_DRIVER,
114         T_DUMP_QUIRK_NAMES,
115         T_DUMP_DEVICE_QUIRKS,
116         T_DUMP_ALL_DESC,
117         T_DUMP_DEVICE_DESC,
118         T_DUMP_CURR_CONFIG_DESC,
119         T_DUMP_ALL_CONFIG_DESC,
120         T_DUMP_STRING,
121         T_DUMP_INFO,
122         T_SUSPEND,
123         T_RESUME,
124         T_POWER_OFF,
125         T_POWER_SAVE,
126         T_POWER_ON,
127         T_RESET,
128         T_LIST,
129         T_DO_REQUEST,
130 };
131
132 static struct options options;
133
134 static const struct token token[] = {
135         {"-u", T_UNIT, 1},
136         {"-a", T_ADDR, 1},
137         {"-d", T_UGEN, 1},
138         {"-i", T_IFACE, 1},
139         {"set_config", T_SET_CONFIG, 1},
140         {"set_alt", T_SET_ALT, 1},
141         {"set_template", T_SET_TEMPLATE, 1},
142         {"get_template", T_GET_TEMPLATE, 0},
143         {"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
144         {"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
145         {"add_quirk", T_ADD_QUIRK, 1},
146         {"remove_quirk", T_REMOVE_QUIRK, 1},
147         {"detach_kernel_driver", T_DETACH_KERNEL_DRIVER, 0},
148         {"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
149         {"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
150         {"dump_all_desc", T_DUMP_ALL_DESC, 0},
151         {"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
152         {"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
153         {"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
154         {"dump_string", T_DUMP_STRING, 1},
155         {"dump_info", T_DUMP_INFO, 0},
156         {"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
157         {"suspend", T_SUSPEND, 0},
158         {"resume", T_RESUME, 0},
159         {"power_off", T_POWER_OFF, 0},
160         {"power_save", T_POWER_SAVE, 0},
161         {"power_on", T_POWER_ON, 0},
162         {"reset", T_RESET, 0},
163         {"list", T_LIST, 0},
164         {"do_request", T_DO_REQUEST, 5},
165 };
166
167 static void
168 be_dev_remove_quirk(struct libusb20_backend *pbe,
169     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
170     const char *str)
171 {
172         struct libusb20_quirk q;
173         int error;
174
175         memset(&q, 0, sizeof(q));
176
177         q.vid = vid;
178         q.pid = pid;
179         q.bcdDeviceLow = lorev;
180         q.bcdDeviceHigh = hirev;
181         strlcpy(q.quirkname, str, sizeof(q.quirkname));
182
183         error = libusb20_be_remove_dev_quirk(pbe, &q);
184         if (error) {
185                 fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
186         }
187         return;
188 }
189
190 static void
191 be_dev_add_quirk(struct libusb20_backend *pbe,
192     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
193     const char *str)
194 {
195         struct libusb20_quirk q;
196         int error;
197
198         memset(&q, 0, sizeof(q));
199
200         q.vid = vid;
201         q.pid = pid;
202         q.bcdDeviceLow = lorev;
203         q.bcdDeviceHigh = hirev;
204         strlcpy(q.quirkname, str, sizeof(q.quirkname));
205
206         error = libusb20_be_add_dev_quirk(pbe, &q);
207         if (error) {
208                 fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
209         }
210         return;
211 }
212
213 static uint8_t
214 get_token(const char *str, uint8_t narg)
215 {
216         uint8_t n;
217
218         for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
219                 if (strcasecmp(str, token[n].name) == 0) {
220                         if (token[n].narg > narg) {
221                                 /* too few arguments */
222                                 break;
223                         }
224                         return (token[n].value);
225                 }
226         }
227         return (0 - 1);
228 }
229
230 static uid_t
231 num_id(const char *name, const char *type)
232 {
233         uid_t val;
234         char *ep;
235
236         errno = 0;
237         val = strtoul(name, &ep, 0);
238         if (errno) {
239                 err(1, "%s", name);
240         }
241         if (*ep != '\0') {
242                 errx(1, "%s: illegal %s name", name, type);
243         }
244         return (val);
245 }
246
247 static int
248 get_int(const char *s)
249 {
250         int val;
251         char *ep;
252
253         errno = 0;
254         val = strtoul(s, &ep, 0);
255         if (errno) {
256                 err(1, "%s", s);
257         }
258         if (*ep != '\0') {
259                 errx(1, "illegal number: %s", s);
260         }
261         return val;
262 }
263
264 static void
265 duplicate_option(const char *ptr)
266 {
267         fprintf(stderr, "Syntax error: "
268             "Duplicate option: '%s'\n", ptr);
269         exit(1);
270 }
271
272 static void
273 usage(void)
274 {
275         fprintf(stderr, ""
276             "usbconfig - configure the USB subsystem" "\n"
277             "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
278             "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
279             "commands:" "\n"
280             "  set_config <cfg_index>" "\n"
281             "  set_alt <alt_index>" "\n"
282             "  set_template <template>" "\n"
283             "  get_template" "\n"
284             "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
285             "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
286             "  add_quirk <quirk>" "\n"
287             "  remove_quirk <quirk>" "\n"
288             "  detach_kernel_driver" "\n"
289             "  dump_quirk_names" "\n"
290             "  dump_device_quirks" "\n"
291             "  dump_all_desc" "\n"
292             "  dump_device_desc" "\n"
293             "  dump_curr_config_desc" "\n"
294             "  dump_all_config_desc" "\n"
295             "  dump_string <index>" "\n"
296             "  dump_info" "\n"
297             "  show_ifdrv" "\n"
298             "  suspend" "\n"
299             "  resume" "\n"
300             "  power_off" "\n"
301             "  power_save" "\n"
302             "  power_on" "\n"
303             "  reset" "\n"
304             "  list" "\n"
305             "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
306         );
307         exit(1);
308 }
309
310 static void
311 reset_options(struct options *opt)
312 {
313         if (opt->buffer)
314                 free(opt->buffer);
315         memset(opt, 0, sizeof(*opt));
316         return;
317 }
318
319 static void
320 flush_command(struct libusb20_backend *pbe, struct options *opt)
321 {
322         struct libusb20_device *pdev = NULL;
323         uint32_t matches = 0;
324         uint8_t dump_any;
325
326         /* check for invalid option combinations */
327         if ((opt->got_suspend +
328             opt->got_resume +
329             opt->got_reset +
330             opt->got_set_config +
331             opt->got_set_alt +
332             opt->got_power_save +
333             opt->got_power_on +
334             opt->got_power_off) > 1) {
335                 err(1, "can only specify one of 'set_config', "
336                     "'set_alt', 'reset', 'suspend', 'resume', "
337                     "'power_save', 'power_on' and 'power_off' "
338                     "at the same time!");
339         }
340         if (opt->got_dump_quirk_names) {
341                 opt->got_any--;
342                 dump_be_quirk_names(pbe);
343         }
344         if (opt->got_dump_device_quirks) {
345                 opt->got_any--;
346                 dump_be_dev_quirks(pbe);
347         }
348         if (opt->got_remove_device_quirk) {
349                 opt->got_any--;
350                 be_dev_remove_quirk(pbe,
351                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
352         }
353         if (opt->got_add_device_quirk) {
354                 opt->got_any--;
355                 be_dev_add_quirk(pbe,
356                     opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
357         }
358         if (opt->got_set_template) {
359                 opt->got_any--;
360                 if (libusb20_be_set_template(pbe, opt->template)) {
361                         fprintf(stderr, "Setting USB template %u failed, "
362                             "continuing.\n", opt->template);
363                 }
364         }
365         if (opt->got_get_template) {
366                 opt->got_any--;
367                 if (libusb20_be_get_template(pbe, &opt->template))
368                         printf("USB template: <unknown>\n");
369                 else
370                         printf("USB template: %u\n", opt->template);
371         }
372         if (opt->got_any == 0) {
373                 /*
374                  * do not scan through all the devices if there are no valid
375                  * options
376                  */
377                 goto done;
378         }
379         while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
380
381                 if (opt->got_bus &&
382                     (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
383                         continue;
384                 }
385                 if (opt->got_addr &&
386                     (libusb20_dev_get_address(pdev) != opt->addr)) {
387                         continue;
388                 }
389                 matches++;
390
391                 if (opt->got_remove_quirk) {
392                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
393         
394                         ddesc = libusb20_dev_get_device_desc(pdev);
395
396                         be_dev_remove_quirk(pbe,
397                             ddesc->idVendor, ddesc->idProduct, 
398                             ddesc->bcdDevice, ddesc->bcdDevice,
399                             opt->quirkname);
400                 }
401
402                 if (opt->got_add_quirk) {
403                         struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
404         
405                         ddesc = libusb20_dev_get_device_desc(pdev);
406
407                         be_dev_add_quirk(pbe,
408                             ddesc->idVendor, ddesc->idProduct, 
409                             ddesc->bcdDevice, ddesc->bcdDevice,
410                             opt->quirkname);
411                 }
412
413                 if (libusb20_dev_open(pdev, 0)) {
414                         err(1, "could not open device");
415                 }
416                 if (opt->got_dump_string) {
417                         dump_string_by_index(pdev, opt->string_index);
418                 }
419                 if (opt->got_do_request) {
420                         uint16_t actlen;
421                         uint16_t t;
422
423                         if (libusb20_dev_request_sync(pdev, &opt->setup,
424                             opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
425                                 printf("REQUEST = <ERROR>\n");
426                         } else if (!(opt->setup.bmRequestType &
427                             LIBUSB20_ENDPOINT_IN)) {
428                                 printf("REQUEST = <OK>\n");
429                         } else {
430                                 t = actlen;
431                                 printf("REQUEST = <");
432                                 for (t = 0; t != actlen; t++) {
433                                         printf("0x%02x%s",
434                                             ((uint8_t *)opt->buffer)[t],
435                                             (t == (actlen - 1)) ? "" : " ");
436                                 }
437                                 printf("><");
438                                 for (t = 0; t != actlen; t++) {
439                                         char c;
440
441                                         c = ((uint8_t *)opt->buffer)[t];
442                                         if ((c != '<') &&
443                                             (c != '>') && isprint(c)) {
444                                                 putchar(c);
445                                         }
446                                 }
447                                 printf(">\n");
448                         }
449                 }
450                 if (opt->got_set_config) {
451                         if (libusb20_dev_set_config_index(pdev,
452                             opt->config_index)) {
453                                 err(1, "could not set config index");
454                         }
455                 }
456                 if (opt->got_set_alt) {
457                         if (libusb20_dev_set_alt_index(pdev, opt->iface,
458                             opt->alt_index)) {
459                                 err(1, "could not set alternate setting");
460                         }
461                 }
462                 if (opt->got_reset) {
463                         if (libusb20_dev_reset(pdev)) {
464                                 err(1, "could not reset device");
465                         }
466                 }
467                 if (opt->got_suspend) {
468                         if (libusb20_dev_set_power_mode(pdev,
469                             LIBUSB20_POWER_SUSPEND)) {
470                                 err(1, "could not set suspend");
471                         }
472                 }
473                 if (opt->got_resume) {
474                         if (libusb20_dev_set_power_mode(pdev,
475                             LIBUSB20_POWER_RESUME)) {
476                                 err(1, "could not set resume");
477                         }
478                 }
479                 if (opt->got_power_off) {
480                         if (libusb20_dev_set_power_mode(pdev,
481                             LIBUSB20_POWER_OFF)) {
482                                 err(1, "could not set power OFF");
483                         }
484                 }
485                 if (opt->got_power_save) {
486                         if (libusb20_dev_set_power_mode(pdev,
487                             LIBUSB20_POWER_SAVE)) {
488                                 err(1, "could not set power SAVE");
489                         }
490                 }
491                 if (opt->got_power_on) {
492                         if (libusb20_dev_set_power_mode(pdev,
493                             LIBUSB20_POWER_ON)) {
494                                 err(1, "could not set power ON");
495                         }
496                 }
497                 if (opt->got_detach_kernel_driver) {
498                         if (libusb20_dev_detach_kernel_driver(pdev, opt->iface)) {
499                                 err(1, "could not detach kernel driver");
500                         }
501                 }
502                 dump_any =
503                     (opt->got_dump_all_desc ||
504                     opt->got_dump_device_desc ||
505                     opt->got_dump_curr_config ||
506                     opt->got_dump_all_config ||
507                     opt->got_dump_info);
508
509                 if (opt->got_list || dump_any) {
510                         dump_device_info(pdev,
511                             opt->got_show_iface_driver);
512                 }
513                 if (opt->got_dump_device_desc) {
514                         printf("\n");
515                         dump_device_desc(pdev);
516                 }
517                 if (opt->got_dump_all_config) {
518                         printf("\n");
519                         dump_config(pdev, 1);
520                 } else if (opt->got_dump_curr_config) {
521                         printf("\n");
522                         dump_config(pdev, 0);
523                 } else if (opt->got_dump_all_desc) {
524                         printf("\n");
525                         dump_device_desc(pdev);
526                         dump_config(pdev, 1);
527                 }
528                 if (dump_any) {
529                         printf("\n");
530                 }
531                 if (libusb20_dev_close(pdev)) {
532                         err(1, "could not close device");
533                 }
534         }
535
536         if (matches == 0) {
537                 printf("No device match or lack of permissions.\n");
538         }
539 done:
540         reset_options(opt);
541
542         return;
543 }
544
545 int
546 main(int argc, char **argv)
547 {
548         struct libusb20_backend *pbe;
549         struct options *opt = &options;
550         const char *ptr;
551         int unit;
552         int addr;
553         int n;
554         int t;
555
556         if (argc < 1) {
557                 usage();
558         }
559         pbe = libusb20_be_alloc_default();
560         if (pbe == NULL)
561                 err(1, "could not access USB backend\n");
562
563         for (n = 1; n != argc; n++) {
564
565                 /* get number of additional options */
566                 t = (argc - n - 1);
567                 if (t > 255)
568                         t = 255;
569                 switch (get_token(argv[n], t)) {
570                 case T_ADD_QUIRK:
571                         if (opt->got_add_quirk) {
572                                 flush_command(pbe, opt);
573                         }
574                         opt->quirkname = argv[n + 1];
575                         n++;
576
577                         opt->got_add_quirk = 1;
578                         opt->got_any++;
579                         break;
580
581                 case T_REMOVE_QUIRK:
582                         if (opt->got_remove_quirk) {
583                                 flush_command(pbe, opt);
584                         }
585                         opt->quirkname = argv[n + 1];
586                         n++;
587
588                         opt->got_remove_quirk = 1;
589                         opt->got_any++;
590                         break;
591
592                 case T_ADD_DEVICE_QUIRK:
593                         if (opt->got_add_device_quirk) {
594                                 flush_command(pbe, opt);
595                         }
596                         opt->vid = num_id(argv[n + 1], "Vendor ID");
597                         opt->pid = num_id(argv[n + 2], "Product ID");
598                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
599                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
600                         opt->quirkname = argv[n + 5];
601                         n += 5;
602
603                         opt->got_add_device_quirk = 1;
604                         opt->got_any++;
605                         break;
606
607                 case T_REMOVE_DEVICE_QUIRK:
608                         if (opt->got_remove_device_quirk) {
609                                 flush_command(pbe, opt);
610                         }
611                         opt->vid = num_id(argv[n + 1], "Vendor ID");
612                         opt->pid = num_id(argv[n + 2], "Product ID");
613                         opt->lo_rev = num_id(argv[n + 3], "Low Revision");
614                         opt->hi_rev = num_id(argv[n + 4], "High Revision");
615                         opt->quirkname = argv[n + 5];
616                         n += 5;
617                         opt->got_remove_device_quirk = 1;
618                         opt->got_any++;
619                         break;
620
621                 case T_DETACH_KERNEL_DRIVER:
622                         if (opt->got_detach_kernel_driver)
623                                 duplicate_option(argv[n]);
624                         opt->got_detach_kernel_driver = 1;
625                         opt->got_any++;
626                         break;
627
628                 case T_DUMP_QUIRK_NAMES:
629                         if (opt->got_dump_quirk_names)
630                                 duplicate_option(argv[n]);
631                         opt->got_dump_quirk_names = 1;
632                         opt->got_any++;
633                         break;
634
635                 case T_DUMP_DEVICE_QUIRKS:
636                         if (opt->got_dump_device_quirks)
637                                 duplicate_option(argv[n]);
638                         opt->got_dump_device_quirks = 1;
639                         opt->got_any++;
640                         break;
641
642                 case T_SHOW_IFACE_DRIVER:
643                         opt->got_show_iface_driver = 1;
644                         break;
645
646                 case T_UGEN:
647                         if (opt->got_any) {
648                                 /* allow multiple commands on the same line */
649                                 flush_command(pbe, opt);
650                         }
651                         ptr = argv[n + 1];
652
653                         if ((ptr[0] == 'u') &&
654                             (ptr[1] == 'g') &&
655                             (ptr[2] == 'e') &&
656                             (ptr[3] == 'n'))
657                                 ptr += 4;
658
659                         if ((sscanf(ptr, "%d.%d",
660                             &unit, &addr) != 2) ||
661                             (unit < 0) || (unit > 65535) ||
662                             (addr < 0) || (addr > 65535)) {
663                                 errx(1, "cannot "
664                                     "parse '%s'", argv[n + 1]);
665                         }
666                         opt->bus = unit;
667                         opt->addr = addr;
668                         opt->got_bus = 1;
669                         opt->got_addr = 1;
670                         n++;
671                         break;
672
673                 case T_UNIT:
674                         if (opt->got_any) {
675                                 /* allow multiple commands on the same line */
676                                 flush_command(pbe, opt);
677                         }
678                         opt->bus = num_id(argv[n + 1], "busnum");
679                         opt->got_bus = 1;
680                         n++;
681                         break;
682                 case T_ADDR:
683                         opt->addr = num_id(argv[n + 1], "addr");
684                         opt->got_addr = 1;
685                         n++;
686                         break;
687                 case T_IFACE:
688                         opt->iface = num_id(argv[n + 1], "iface");
689                         opt->got_iface = 1;
690                         n++;
691                         break;
692                 case T_SET_CONFIG:
693                         if (opt->got_set_config)
694                                 duplicate_option(argv[n]);
695                         opt->config_index = num_id(argv[n + 1], "cfg_index");
696                         opt->got_set_config = 1;
697                         opt->got_any++;
698                         n++;
699                         break;
700                 case T_SET_ALT:
701                         if (opt->got_set_alt)
702                                 duplicate_option(argv[n]);
703                         opt->alt_index = num_id(argv[n + 1], "cfg_index");
704                         opt->got_set_alt = 1;
705                         opt->got_any++;
706                         n++;
707                         break;
708                 case T_SET_TEMPLATE:
709                         if (opt->got_set_template)
710                                 duplicate_option(argv[n]);
711                         opt->template = get_int(argv[n + 1]);
712                         opt->got_set_template = 1;
713                         opt->got_any++;
714                         n++;
715                         break;
716                 case T_GET_TEMPLATE:
717                         if (opt->got_get_template)
718                                 duplicate_option(argv[n]);
719                         opt->got_get_template = 1;
720                         opt->got_any++;
721                         break;
722                 case T_DUMP_ALL_DESC:
723                         if (opt->got_dump_all_desc)
724                                 duplicate_option(argv[n]);
725                         opt->got_dump_all_desc = 1;
726                         opt->got_any++;
727                         break;
728                 case T_DUMP_DEVICE_DESC:
729                         if (opt->got_dump_device_desc)
730                                 duplicate_option(argv[n]);
731                         opt->got_dump_device_desc = 1;
732                         opt->got_any++;
733                         break;
734                 case T_DUMP_CURR_CONFIG_DESC:
735                         if (opt->got_dump_curr_config)
736                                 duplicate_option(argv[n]);
737                         opt->got_dump_curr_config = 1;
738                         opt->got_any++;
739                         break;
740                 case T_DUMP_ALL_CONFIG_DESC:
741                         if (opt->got_dump_all_config)
742                                 duplicate_option(argv[n]);
743                         opt->got_dump_all_config = 1;
744                         opt->got_any++;
745                         break;
746                 case T_DUMP_INFO:
747                         if (opt->got_dump_info)
748                                 duplicate_option(argv[n]);
749                         opt->got_dump_info = 1;
750                         opt->got_any++;
751                         break;
752                 case T_DUMP_STRING:
753                         if (opt->got_dump_string)
754                                 duplicate_option(argv[n]);
755                         opt->string_index = num_id(argv[n + 1], "str_index");
756                         opt->got_dump_string = 1;
757                         opt->got_any++;
758                         n++;
759                         break;
760                 case T_SUSPEND:
761                         if (opt->got_suspend)
762                                 duplicate_option(argv[n]);
763                         opt->got_suspend = 1;
764                         opt->got_any++;
765                         break;
766                 case T_RESUME:
767                         if (opt->got_resume)
768                                 duplicate_option(argv[n]);
769                         opt->got_resume = 1;
770                         opt->got_any++;
771                         break;
772                 case T_POWER_OFF:
773                         if (opt->got_power_off)
774                                 duplicate_option(argv[n]);
775                         opt->got_power_off = 1;
776                         opt->got_any++;
777                         break;
778                 case T_POWER_SAVE:
779                         if (opt->got_power_save)
780                                 duplicate_option(argv[n]);
781                         opt->got_power_save = 1;
782                         opt->got_any++;
783                         break;
784                 case T_POWER_ON:
785                         if (opt->got_power_on)
786                                 duplicate_option(argv[n]);
787                         opt->got_power_on = 1;
788                         opt->got_any++;
789                         break;
790                 case T_RESET:
791                         if (opt->got_reset)
792                                 duplicate_option(argv[n]);
793                         opt->got_reset = 1;
794                         opt->got_any++;
795                         break;
796                 case T_LIST:
797                         if (opt->got_list)
798                                 duplicate_option(argv[n]);
799                         opt->got_list = 1;
800                         opt->got_any++;
801                         break;
802                 case T_DO_REQUEST:
803                         if (opt->got_do_request)
804                                 duplicate_option(argv[n]);
805                         LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
806                         opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
807                         opt->setup.bRequest = num_id(argv[n + 2], "bReq");
808                         opt->setup.wValue = num_id(argv[n + 3], "wVal");
809                         opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
810                         opt->setup.wLength = num_id(argv[n + 5], "wLen");
811                         if (opt->setup.wLength != 0) {
812                                 opt->buffer = malloc(opt->setup.wLength);
813                         } else {
814                                 opt->buffer = NULL;
815                         }
816
817                         n += 5;
818
819                         if (!(opt->setup.bmRequestType &
820                             LIBUSB20_ENDPOINT_IN)) {
821                                 /* copy in data */
822                                 t = (argc - n - 1);
823                                 if (t < opt->setup.wLength) {
824                                         err(1, "request data missing");
825                                 }
826                                 t = opt->setup.wLength;
827                                 while (t--) {
828                                         ((uint8_t *)opt->buffer)[t] =
829                                             num_id(argv[n + t + 1], "req_data");
830                                 }
831                                 n += opt->setup.wLength;
832                         }
833                         opt->got_do_request = 1;
834                         opt->got_any++;
835                         break;
836                 default:
837                         if (n == 1) {
838                                 ptr = argv[n];
839
840                                 if ((ptr[0] == 'u') &&
841                                     (ptr[1] == 'g') &&
842                                     (ptr[2] == 'e') &&
843                                     (ptr[3] == 'n'))
844                                         ptr += 4;
845
846                                 if ((sscanf(ptr, "%d.%d",
847                                     &unit, &addr) != 2) ||
848                                     (unit < 0) || (unit > 65535) ||
849                                     (addr < 0) || (addr > 65535)) {
850                                         usage();
851                                         break;
852                                 }
853
854                                 opt->bus = unit;
855                                 opt->addr = addr;
856                                 opt->got_bus = 1;
857                                 opt->got_addr = 1;
858                                 break;
859                         }
860                         usage();
861                         break;
862                 }
863         }
864         if (opt->got_any) {
865                 /* flush out last command */
866                 flush_command(pbe, opt);
867         } else {
868                 /* list all the devices */
869                 opt->got_list = 1;
870                 opt->got_any++;
871                 flush_command(pbe, opt);
872         }
873         /* release data */
874         libusb20_be_free(pbe);
875
876         return (0);
877 }