xref: /freebsd/usr.sbin/usbconfig/usbconfig.c (revision 38f0b757fd84d17d0fc24739a7cda160c4516d81)
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_device_desc:1;
79 	uint8_t	got_dump_curr_config:1;
80 	uint8_t	got_dump_all_config:1;
81 	uint8_t	got_dump_info:1;
82 	uint8_t	got_show_iface_driver:1;
83 	uint8_t	got_remove_device_quirk:1;
84 	uint8_t	got_add_device_quirk:1;
85 	uint8_t	got_remove_quirk:1;
86 	uint8_t	got_add_quirk:1;
87 	uint8_t	got_dump_string:1;
88 	uint8_t	got_do_request:1;
89 };
90 
91 struct token {
92 	const char *name;
93 	uint8_t	value;
94 	uint8_t	narg;
95 };
96 
97 enum {
98 	T_UNIT,
99 	T_ADDR,
100 	T_UGEN,
101 	T_IFACE,
102 	T_SET_CONFIG,
103 	T_SET_ALT,
104 	T_SET_TEMPLATE,
105 	T_GET_TEMPLATE,
106 	T_ADD_DEVICE_QUIRK,
107 	T_REMOVE_DEVICE_QUIRK,
108 	T_ADD_QUIRK,
109 	T_REMOVE_QUIRK,
110 	T_SHOW_IFACE_DRIVER,
111 	T_DUMP_QUIRK_NAMES,
112 	T_DUMP_DEVICE_QUIRKS,
113 	T_DUMP_DEVICE_DESC,
114 	T_DUMP_CURR_CONFIG_DESC,
115 	T_DUMP_ALL_CONFIG_DESC,
116 	T_DUMP_STRING,
117 	T_DUMP_INFO,
118 	T_SUSPEND,
119 	T_RESUME,
120 	T_POWER_OFF,
121 	T_POWER_SAVE,
122 	T_POWER_ON,
123 	T_RESET,
124 	T_LIST,
125 	T_DO_REQUEST,
126 };
127 
128 static struct options options;
129 
130 static const struct token token[] = {
131 	{"-u", T_UNIT, 1},
132 	{"-a", T_ADDR, 1},
133 	{"-d", T_UGEN, 1},
134 	{"-i", T_IFACE, 1},
135 	{"set_config", T_SET_CONFIG, 1},
136 	{"set_alt", T_SET_ALT, 1},
137 	{"set_template", T_SET_TEMPLATE, 1},
138 	{"get_template", T_GET_TEMPLATE, 0},
139 	{"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
140 	{"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
141 	{"add_quirk", T_ADD_QUIRK, 1},
142 	{"remove_quirk", T_REMOVE_QUIRK, 1},
143 	{"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
144 	{"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
145 	{"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
146 	{"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
147 	{"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
148 	{"dump_string", T_DUMP_STRING, 1},
149 	{"dump_info", T_DUMP_INFO, 0},
150 	{"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
151 	{"suspend", T_SUSPEND, 0},
152 	{"resume", T_RESUME, 0},
153 	{"power_off", T_POWER_OFF, 0},
154 	{"power_save", T_POWER_SAVE, 0},
155 	{"power_on", T_POWER_ON, 0},
156 	{"reset", T_RESET, 0},
157 	{"list", T_LIST, 0},
158 	{"do_request", T_DO_REQUEST, 5},
159 };
160 
161 static void
162 be_dev_remove_quirk(struct libusb20_backend *pbe,
163     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
164     const char *str)
165 {
166 	struct libusb20_quirk q;
167 	int error;
168 
169 	memset(&q, 0, sizeof(q));
170 
171 	q.vid = vid;
172 	q.pid = pid;
173 	q.bcdDeviceLow = lorev;
174 	q.bcdDeviceHigh = hirev;
175 	strlcpy(q.quirkname, str, sizeof(q.quirkname));
176 
177 	error = libusb20_be_remove_dev_quirk(pbe, &q);
178 	if (error) {
179 		fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
180 	}
181 	return;
182 }
183 
184 static void
185 be_dev_add_quirk(struct libusb20_backend *pbe,
186     uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
187     const char *str)
188 {
189 	struct libusb20_quirk q;
190 	int error;
191 
192 	memset(&q, 0, sizeof(q));
193 
194 	q.vid = vid;
195 	q.pid = pid;
196 	q.bcdDeviceLow = lorev;
197 	q.bcdDeviceHigh = hirev;
198 	strlcpy(q.quirkname, str, sizeof(q.quirkname));
199 
200 	error = libusb20_be_add_dev_quirk(pbe, &q);
201 	if (error) {
202 		fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
203 	}
204 	return;
205 }
206 
207 static uint8_t
208 get_token(const char *str, uint8_t narg)
209 {
210 	uint8_t n;
211 
212 	for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
213 		if (strcasecmp(str, token[n].name) == 0) {
214 			if (token[n].narg > narg) {
215 				/* too few arguments */
216 				break;
217 			}
218 			return (token[n].value);
219 		}
220 	}
221 	return (0 - 1);
222 }
223 
224 static uid_t
225 num_id(const char *name, const char *type)
226 {
227 	uid_t val;
228 	char *ep;
229 
230 	errno = 0;
231 	val = strtoul(name, &ep, 0);
232 	if (errno) {
233 		err(1, "%s", name);
234 	}
235 	if (*ep != '\0') {
236 		errx(1, "%s: illegal %s name", name, type);
237 	}
238 	return (val);
239 }
240 
241 static int
242 get_int(const char *s)
243 {
244 	int val;
245 	char *ep;
246 
247 	errno = 0;
248 	val = strtoul(s, &ep, 0);
249 	if (errno) {
250 		err(1, "%s", s);
251 	}
252 	if (*ep != '\0') {
253 		errx(1, "illegal number: %s", s);
254 	}
255 	return val;
256 }
257 
258 static void
259 duplicate_option(const char *ptr)
260 {
261 	fprintf(stderr, "Syntax error: "
262 	    "Duplicate option: '%s'\n", ptr);
263 	exit(1);
264 }
265 
266 static void
267 usage(void)
268 {
269 	fprintf(stderr, ""
270 	    "usbconfig - configure the USB subsystem" "\n"
271 	    "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
272 	    "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
273 	    "commands:" "\n"
274 	    "  set_config <cfg_index>" "\n"
275 	    "  set_alt <alt_index>" "\n"
276 	    "  set_template <template>" "\n"
277 	    "  get_template" "\n"
278 	    "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
279 	    "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
280 	    "  add_quirk <quirk>" "\n"
281 	    "  remove_quirk <quirk>" "\n"
282 	    "  dump_quirk_names" "\n"
283 	    "  dump_device_quirks" "\n"
284 	    "  dump_device_desc" "\n"
285 	    "  dump_curr_config_desc" "\n"
286 	    "  dump_all_config_desc" "\n"
287 	    "  dump_string <index>" "\n"
288 	    "  dump_info" "\n"
289 	    "  show_ifdrv" "\n"
290 	    "  suspend" "\n"
291 	    "  resume" "\n"
292 	    "  power_off" "\n"
293 	    "  power_save" "\n"
294 	    "  power_on" "\n"
295 	    "  reset" "\n"
296 	    "  list" "\n"
297 	    "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
298 	);
299 	exit(1);
300 }
301 
302 static void
303 reset_options(struct options *opt)
304 {
305 	if (opt->buffer)
306 		free(opt->buffer);
307 	memset(opt, 0, sizeof(*opt));
308 	return;
309 }
310 
311 static void
312 flush_command(struct libusb20_backend *pbe, struct options *opt)
313 {
314 	struct libusb20_device *pdev = NULL;
315 	uint32_t matches = 0;
316 	uint8_t dump_any;
317 
318 	/* check for invalid option combinations */
319 	if ((opt->got_suspend +
320 	    opt->got_resume +
321 	    opt->got_reset +
322 	    opt->got_set_config +
323 	    opt->got_set_alt +
324 	    opt->got_power_save +
325 	    opt->got_power_on +
326 	    opt->got_power_off) > 1) {
327 		err(1, "can only specify one of 'set_config', "
328 		    "'set_alt', 'reset', 'suspend', 'resume', "
329 		    "'power_save', 'power_on' and 'power_off' "
330 		    "at the same time!");
331 	}
332 	if (opt->got_dump_quirk_names) {
333 		opt->got_any--;
334 		dump_be_quirk_names(pbe);
335 	}
336 	if (opt->got_dump_device_quirks) {
337 		opt->got_any--;
338 		dump_be_dev_quirks(pbe);
339 	}
340 	if (opt->got_remove_device_quirk) {
341 		opt->got_any--;
342 		be_dev_remove_quirk(pbe,
343 		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
344 	}
345 	if (opt->got_add_device_quirk) {
346 		opt->got_any--;
347 		be_dev_add_quirk(pbe,
348 		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
349 	}
350 	if (opt->got_set_template) {
351 		opt->got_any--;
352 		if (libusb20_be_set_template(pbe, opt->template)) {
353 			fprintf(stderr, "Setting USB template %u failed, "
354 			    "continuing.\n", opt->template);
355 		}
356 	}
357 	if (opt->got_get_template) {
358 		opt->got_any--;
359 		if (libusb20_be_get_template(pbe, &opt->template))
360 			printf("USB template: <unknown>\n");
361 		else
362 			printf("USB template: %u\n", opt->template);
363 	}
364 	if (opt->got_any == 0) {
365 		/*
366 		 * do not scan through all the devices if there are no valid
367 		 * options
368 		 */
369 		goto done;
370 	}
371 	while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
372 
373 		if (opt->got_bus &&
374 		    (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
375 			continue;
376 		}
377 		if (opt->got_addr &&
378 		    (libusb20_dev_get_address(pdev) != opt->addr)) {
379 			continue;
380 		}
381 		matches++;
382 
383 		if (opt->got_remove_quirk) {
384 			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
385 
386 			ddesc = libusb20_dev_get_device_desc(pdev);
387 
388 			be_dev_remove_quirk(pbe,
389 			    ddesc->idVendor, ddesc->idProduct,
390 			    ddesc->bcdDevice, ddesc->bcdDevice,
391 			    opt->quirkname);
392 		}
393 
394 		if (opt->got_add_quirk) {
395 			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
396 
397 			ddesc = libusb20_dev_get_device_desc(pdev);
398 
399 			be_dev_add_quirk(pbe,
400 			    ddesc->idVendor, ddesc->idProduct,
401 			    ddesc->bcdDevice, ddesc->bcdDevice,
402 			    opt->quirkname);
403 		}
404 
405 		if (libusb20_dev_open(pdev, 0)) {
406 			err(1, "could not open device");
407 		}
408 		if (opt->got_dump_string) {
409 			dump_string_by_index(pdev, opt->string_index);
410 		}
411 		if (opt->got_do_request) {
412 			uint16_t actlen;
413 			uint16_t t;
414 
415 			if (libusb20_dev_request_sync(pdev, &opt->setup,
416 			    opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
417 				printf("REQUEST = <ERROR>\n");
418 			} else if (!(opt->setup.bmRequestType &
419 			    LIBUSB20_ENDPOINT_IN)) {
420 				printf("REQUEST = <OK>\n");
421 			} else {
422 				t = actlen;
423 				printf("REQUEST = <");
424 				for (t = 0; t != actlen; t++) {
425 					printf("0x%02x%s",
426 					    ((uint8_t *)opt->buffer)[t],
427 					    (t == (actlen - 1)) ? "" : " ");
428 				}
429 				printf("><");
430 				for (t = 0; t != actlen; t++) {
431 					char c;
432 
433 					c = ((uint8_t *)opt->buffer)[t];
434 					if ((c != '<') &&
435 					    (c != '>') && isprint(c)) {
436 						putchar(c);
437 					}
438 				}
439 				printf(">\n");
440 			}
441 		}
442 		if (opt->got_set_config) {
443 			if (libusb20_dev_set_config_index(pdev,
444 			    opt->config_index)) {
445 				err(1, "could not set config index");
446 			}
447 		}
448 		if (opt->got_set_alt) {
449 			if (libusb20_dev_set_alt_index(pdev, opt->iface,
450 			    opt->alt_index)) {
451 				err(1, "could not set alternate setting");
452 			}
453 		}
454 		if (opt->got_reset) {
455 			if (libusb20_dev_reset(pdev)) {
456 				err(1, "could not reset device");
457 			}
458 		}
459 		if (opt->got_suspend) {
460 			if (libusb20_dev_set_power_mode(pdev,
461 			    LIBUSB20_POWER_SUSPEND)) {
462 				err(1, "could not set suspend");
463 			}
464 		}
465 		if (opt->got_resume) {
466 			if (libusb20_dev_set_power_mode(pdev,
467 			    LIBUSB20_POWER_RESUME)) {
468 				err(1, "could not set resume");
469 			}
470 		}
471 		if (opt->got_power_off) {
472 			if (libusb20_dev_set_power_mode(pdev,
473 			    LIBUSB20_POWER_OFF)) {
474 				err(1, "could not set power OFF");
475 			}
476 		}
477 		if (opt->got_power_save) {
478 			if (libusb20_dev_set_power_mode(pdev,
479 			    LIBUSB20_POWER_SAVE)) {
480 				err(1, "could not set power SAVE");
481 			}
482 		}
483 		if (opt->got_power_on) {
484 			if (libusb20_dev_set_power_mode(pdev,
485 			    LIBUSB20_POWER_ON)) {
486 				err(1, "could not set power ON");
487 			}
488 		}
489 		dump_any =
490 		    (opt->got_dump_device_desc ||
491 		    opt->got_dump_curr_config ||
492 		    opt->got_dump_all_config ||
493 		    opt->got_dump_info);
494 
495 		if (opt->got_list || dump_any) {
496 			dump_device_info(pdev,
497 			    opt->got_show_iface_driver);
498 		}
499 		if (opt->got_dump_device_desc) {
500 			printf("\n");
501 			dump_device_desc(pdev);
502 		}
503 		if (opt->got_dump_all_config) {
504 			printf("\n");
505 			dump_config(pdev, 1);
506 		} else if (opt->got_dump_curr_config) {
507 			printf("\n");
508 			dump_config(pdev, 0);
509 		}
510 		if (dump_any) {
511 			printf("\n");
512 		}
513 		if (libusb20_dev_close(pdev)) {
514 			err(1, "could not close device");
515 		}
516 	}
517 
518 	if (matches == 0) {
519 		printf("No device match or lack of permissions.\n");
520 	}
521 done:
522 	reset_options(opt);
523 
524 	return;
525 }
526 
527 int
528 main(int argc, char **argv)
529 {
530 	struct libusb20_backend *pbe;
531 	struct options *opt = &options;
532 	const char *ptr;
533 	int unit;
534 	int addr;
535 	int n;
536 	int t;
537 
538 	if (argc < 1) {
539 		usage();
540 	}
541 	pbe = libusb20_be_alloc_default();
542 	if (pbe == NULL)
543 		err(1, "could not access USB backend\n");
544 
545 	for (n = 1; n != argc; n++) {
546 
547 		/* get number of additional options */
548 		t = (argc - n - 1);
549 		if (t > 255)
550 			t = 255;
551 		switch (get_token(argv[n], t)) {
552 		case T_ADD_QUIRK:
553 			if (opt->got_add_quirk) {
554 				flush_command(pbe, opt);
555 			}
556 			opt->quirkname = argv[n + 1];
557 			n++;
558 
559 			opt->got_add_quirk = 1;
560 			opt->got_any++;
561 			break;
562 
563 		case T_REMOVE_QUIRK:
564 			if (opt->got_remove_quirk) {
565 				flush_command(pbe, opt);
566 			}
567 			opt->quirkname = argv[n + 1];
568 			n++;
569 
570 			opt->got_remove_quirk = 1;
571 			opt->got_any++;
572 			break;
573 
574 		case T_ADD_DEVICE_QUIRK:
575 			if (opt->got_add_device_quirk) {
576 				flush_command(pbe, opt);
577 			}
578 			opt->vid = num_id(argv[n + 1], "Vendor ID");
579 			opt->pid = num_id(argv[n + 2], "Product ID");
580 			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
581 			opt->hi_rev = num_id(argv[n + 4], "High Revision");
582 			opt->quirkname = argv[n + 5];
583 			n += 5;
584 
585 			opt->got_add_device_quirk = 1;
586 			opt->got_any++;
587 			break;
588 
589 		case T_REMOVE_DEVICE_QUIRK:
590 			if (opt->got_remove_device_quirk) {
591 				flush_command(pbe, opt);
592 			}
593 			opt->vid = num_id(argv[n + 1], "Vendor ID");
594 			opt->pid = num_id(argv[n + 2], "Product ID");
595 			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
596 			opt->hi_rev = num_id(argv[n + 4], "High Revision");
597 			opt->quirkname = argv[n + 5];
598 			n += 5;
599 			opt->got_remove_device_quirk = 1;
600 			opt->got_any++;
601 			break;
602 
603 		case T_DUMP_QUIRK_NAMES:
604 			if (opt->got_dump_quirk_names)
605 				duplicate_option(argv[n]);
606 			opt->got_dump_quirk_names = 1;
607 			opt->got_any++;
608 			break;
609 
610 		case T_DUMP_DEVICE_QUIRKS:
611 			if (opt->got_dump_device_quirks)
612 				duplicate_option(argv[n]);
613 			opt->got_dump_device_quirks = 1;
614 			opt->got_any++;
615 			break;
616 
617 		case T_SHOW_IFACE_DRIVER:
618 			opt->got_show_iface_driver = 1;
619 			break;
620 
621 		case T_UGEN:
622 			if (opt->got_any) {
623 				/* allow multiple commands on the same line */
624 				flush_command(pbe, opt);
625 			}
626 			ptr = argv[n + 1];
627 
628 			if ((ptr[0] == 'u') &&
629 			    (ptr[1] == 'g') &&
630 			    (ptr[2] == 'e') &&
631 			    (ptr[3] == 'n'))
632 				ptr += 4;
633 
634 			if ((sscanf(ptr, "%d.%d",
635 			    &unit, &addr) != 2) ||
636 			    (unit < 0) || (unit > 65535) ||
637 			    (addr < 0) || (addr > 65535)) {
638 				errx(1, "cannot "
639 				    "parse '%s'", argv[n + 1]);
640 			}
641 			opt->bus = unit;
642 			opt->addr = addr;
643 			opt->got_bus = 1;
644 			opt->got_addr = 1;
645 			n++;
646 			break;
647 
648 		case T_UNIT:
649 			if (opt->got_any) {
650 				/* allow multiple commands on the same line */
651 				flush_command(pbe, opt);
652 			}
653 			opt->bus = num_id(argv[n + 1], "busnum");
654 			opt->got_bus = 1;
655 			n++;
656 			break;
657 		case T_ADDR:
658 			opt->addr = num_id(argv[n + 1], "addr");
659 			opt->got_addr = 1;
660 			n++;
661 			break;
662 		case T_IFACE:
663 			opt->iface = num_id(argv[n + 1], "iface");
664 			opt->got_iface = 1;
665 			n++;
666 			break;
667 		case T_SET_CONFIG:
668 			if (opt->got_set_config)
669 				duplicate_option(argv[n]);
670 			opt->config_index = num_id(argv[n + 1], "cfg_index");
671 			opt->got_set_config = 1;
672 			opt->got_any++;
673 			n++;
674 			break;
675 		case T_SET_ALT:
676 			if (opt->got_set_alt)
677 				duplicate_option(argv[n]);
678 			opt->alt_index = num_id(argv[n + 1], "cfg_index");
679 			opt->got_set_alt = 1;
680 			opt->got_any++;
681 			n++;
682 			break;
683 		case T_SET_TEMPLATE:
684 			if (opt->got_set_template)
685 				duplicate_option(argv[n]);
686 			opt->template = get_int(argv[n + 1]);
687 			opt->got_set_template = 1;
688 			opt->got_any++;
689 			n++;
690 			break;
691 		case T_GET_TEMPLATE:
692 			if (opt->got_get_template)
693 				duplicate_option(argv[n]);
694 			opt->got_get_template = 1;
695 			opt->got_any++;
696 			break;
697 		case T_DUMP_DEVICE_DESC:
698 			if (opt->got_dump_device_desc)
699 				duplicate_option(argv[n]);
700 			opt->got_dump_device_desc = 1;
701 			opt->got_any++;
702 			break;
703 		case T_DUMP_CURR_CONFIG_DESC:
704 			if (opt->got_dump_curr_config)
705 				duplicate_option(argv[n]);
706 			opt->got_dump_curr_config = 1;
707 			opt->got_any++;
708 			break;
709 		case T_DUMP_ALL_CONFIG_DESC:
710 			if (opt->got_dump_all_config)
711 				duplicate_option(argv[n]);
712 			opt->got_dump_all_config = 1;
713 			opt->got_any++;
714 			break;
715 		case T_DUMP_INFO:
716 			if (opt->got_dump_info)
717 				duplicate_option(argv[n]);
718 			opt->got_dump_info = 1;
719 			opt->got_any++;
720 			break;
721 		case T_DUMP_STRING:
722 			if (opt->got_dump_string)
723 				duplicate_option(argv[n]);
724 			opt->string_index = num_id(argv[n + 1], "str_index");
725 			opt->got_dump_string = 1;
726 			opt->got_any++;
727 			n++;
728 			break;
729 		case T_SUSPEND:
730 			if (opt->got_suspend)
731 				duplicate_option(argv[n]);
732 			opt->got_suspend = 1;
733 			opt->got_any++;
734 			break;
735 		case T_RESUME:
736 			if (opt->got_resume)
737 				duplicate_option(argv[n]);
738 			opt->got_resume = 1;
739 			opt->got_any++;
740 			break;
741 		case T_POWER_OFF:
742 			if (opt->got_power_off)
743 				duplicate_option(argv[n]);
744 			opt->got_power_off = 1;
745 			opt->got_any++;
746 			break;
747 		case T_POWER_SAVE:
748 			if (opt->got_power_save)
749 				duplicate_option(argv[n]);
750 			opt->got_power_save = 1;
751 			opt->got_any++;
752 			break;
753 		case T_POWER_ON:
754 			if (opt->got_power_on)
755 				duplicate_option(argv[n]);
756 			opt->got_power_on = 1;
757 			opt->got_any++;
758 			break;
759 		case T_RESET:
760 			if (opt->got_reset)
761 				duplicate_option(argv[n]);
762 			opt->got_reset = 1;
763 			opt->got_any++;
764 			break;
765 		case T_LIST:
766 			if (opt->got_list)
767 				duplicate_option(argv[n]);
768 			opt->got_list = 1;
769 			opt->got_any++;
770 			break;
771 		case T_DO_REQUEST:
772 			if (opt->got_do_request)
773 				duplicate_option(argv[n]);
774 			LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
775 			opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
776 			opt->setup.bRequest = num_id(argv[n + 2], "bReq");
777 			opt->setup.wValue = num_id(argv[n + 3], "wVal");
778 			opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
779 			opt->setup.wLength = num_id(argv[n + 5], "wLen");
780 			if (opt->setup.wLength != 0) {
781 				opt->buffer = malloc(opt->setup.wLength);
782 			} else {
783 				opt->buffer = NULL;
784 			}
785 
786 			n += 5;
787 
788 			if (!(opt->setup.bmRequestType &
789 			    LIBUSB20_ENDPOINT_IN)) {
790 				/* copy in data */
791 				t = (argc - n - 1);
792 				if (t < opt->setup.wLength) {
793 					err(1, "request data missing");
794 				}
795 				t = opt->setup.wLength;
796 				while (t--) {
797 					((uint8_t *)opt->buffer)[t] =
798 					    num_id(argv[n + t + 1], "req_data");
799 				}
800 				n += opt->setup.wLength;
801 			}
802 			opt->got_do_request = 1;
803 			opt->got_any++;
804 			break;
805 		default:
806 			usage();
807 			break;
808 		}
809 	}
810 	if (opt->got_any) {
811 		/* flush out last command */
812 		flush_command(pbe, opt);
813 	} else {
814 		/* list all the devices */
815 		opt->got_list = 1;
816 		opt->got_any++;
817 		flush_command(pbe, opt);
818 	}
819 	/* release data */
820 	libusb20_be_free(pbe);
821 
822 	return (0);
823 }
824