usbconfig.c revision 356404 
1/* $FreeBSD: stable/10/usr.sbin/usbconfig/usbconfig.c 356404 2020-01-06 09:37:13Z hselasky $ */
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
43struct 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
92struct token {
93	const char *name;
94	uint8_t	value;
95	uint8_t	narg;
96};
97
98enum {
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
130static struct options options;
131
132static 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
164static void
165be_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
187static void
188be_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
210static uint8_t
211get_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
227static uid_t
228num_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
244static int
245get_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
261static void
262duplicate_option(const char *ptr)
263{
264	fprintf(stderr, "Syntax error: "
265	    "Duplicate option: '%s'\n", ptr);
266	exit(1);
267}
268
269static void
270usage(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
306static void
307reset_options(struct options *opt)
308{
309	if (opt->buffer)
310		free(opt->buffer);
311	memset(opt, 0, sizeof(*opt));
312	return;
313}
314
315static void
316flush_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	}
530done:
531	reset_options(opt);
532
533	return;
534}
535
536int
537main(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}
839