1/* $FreeBSD: stable/10/usr.sbin/usbconfig/usbconfig.c 356408 2020-01-06 09:40:59Z 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_dump_stats:1;
84	uint8_t	got_show_iface_driver:1;
85	uint8_t	got_remove_device_quirk:1;
86	uint8_t	got_add_device_quirk:1;
87	uint8_t	got_remove_quirk:1;
88	uint8_t	got_add_quirk:1;
89	uint8_t	got_dump_string:1;
90	uint8_t	got_do_request:1;
91	uint8_t	got_detach_kernel_driver:1;
92};
93
94struct token {
95	const char *name;
96	uint8_t	value;
97	uint8_t	narg;
98};
99
100enum {
101	T_UNIT,
102	T_ADDR,
103	T_UGEN,
104	T_IFACE,
105	T_SET_CONFIG,
106	T_SET_ALT,
107	T_SET_TEMPLATE,
108	T_GET_TEMPLATE,
109	T_ADD_DEVICE_QUIRK,
110	T_REMOVE_DEVICE_QUIRK,
111	T_ADD_QUIRK,
112	T_REMOVE_QUIRK,
113	T_SHOW_IFACE_DRIVER,
114	T_DETACH_KERNEL_DRIVER,
115	T_DUMP_QUIRK_NAMES,
116	T_DUMP_DEVICE_QUIRKS,
117	T_DUMP_ALL_DESC,
118	T_DUMP_DEVICE_DESC,
119	T_DUMP_CURR_CONFIG_DESC,
120	T_DUMP_ALL_CONFIG_DESC,
121	T_DUMP_STRING,
122	T_DUMP_INFO,
123	T_DUMP_STATS,
124	T_SUSPEND,
125	T_RESUME,
126	T_POWER_OFF,
127	T_POWER_SAVE,
128	T_POWER_ON,
129	T_RESET,
130	T_LIST,
131	T_DO_REQUEST,
132};
133
134static struct options options;
135
136static const struct token token[] = {
137	{"-u", T_UNIT, 1},
138	{"-a", T_ADDR, 1},
139	{"-d", T_UGEN, 1},
140	{"-i", T_IFACE, 1},
141	{"set_config", T_SET_CONFIG, 1},
142	{"set_alt", T_SET_ALT, 1},
143	{"set_template", T_SET_TEMPLATE, 1},
144	{"get_template", T_GET_TEMPLATE, 0},
145	{"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
146	{"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
147	{"add_quirk", T_ADD_QUIRK, 1},
148	{"remove_quirk", T_REMOVE_QUIRK, 1},
149	{"detach_kernel_driver", T_DETACH_KERNEL_DRIVER, 0},
150	{"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
151	{"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
152	{"dump_all_desc", T_DUMP_ALL_DESC, 0},
153	{"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
154	{"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
155	{"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
156	{"dump_string", T_DUMP_STRING, 1},
157	{"dump_info", T_DUMP_INFO, 0},
158	{"dump_stats", T_DUMP_STATS, 0},
159	{"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
160	{"suspend", T_SUSPEND, 0},
161	{"resume", T_RESUME, 0},
162	{"power_off", T_POWER_OFF, 0},
163	{"power_save", T_POWER_SAVE, 0},
164	{"power_on", T_POWER_ON, 0},
165	{"reset", T_RESET, 0},
166	{"list", T_LIST, 0},
167	{"do_request", T_DO_REQUEST, 5},
168};
169
170static void
171be_dev_remove_quirk(struct libusb20_backend *pbe,
172    uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
173    const char *str)
174{
175	struct libusb20_quirk q;
176	int error;
177
178	memset(&q, 0, sizeof(q));
179
180	q.vid = vid;
181	q.pid = pid;
182	q.bcdDeviceLow = lorev;
183	q.bcdDeviceHigh = hirev;
184	strlcpy(q.quirkname, str, sizeof(q.quirkname));
185
186	error = libusb20_be_remove_dev_quirk(pbe, &q);
187	if (error) {
188		fprintf(stderr, "Removing quirk '%s' failed, continuing.\n", str);
189	}
190	return;
191}
192
193static void
194be_dev_add_quirk(struct libusb20_backend *pbe,
195    uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
196    const char *str)
197{
198	struct libusb20_quirk q;
199	int error;
200
201	memset(&q, 0, sizeof(q));
202
203	q.vid = vid;
204	q.pid = pid;
205	q.bcdDeviceLow = lorev;
206	q.bcdDeviceHigh = hirev;
207	strlcpy(q.quirkname, str, sizeof(q.quirkname));
208
209	error = libusb20_be_add_dev_quirk(pbe, &q);
210	if (error) {
211		fprintf(stderr, "Adding quirk '%s' failed, continuing.\n", str);
212	}
213	return;
214}
215
216static uint8_t
217get_token(const char *str, uint8_t narg)
218{
219	uint8_t n;
220
221	for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
222		if (strcasecmp(str, token[n].name) == 0) {
223			if (token[n].narg > narg) {
224				/* too few arguments */
225				break;
226			}
227			return (token[n].value);
228		}
229	}
230	return (0 - 1);
231}
232
233static uid_t
234num_id(const char *name, const char *type)
235{
236	uid_t val;
237	char *ep;
238
239	errno = 0;
240	val = strtoul(name, &ep, 0);
241	if (errno) {
242		err(1, "%s", name);
243	}
244	if (*ep != '\0') {
245		errx(1, "%s: illegal %s name", name, type);
246	}
247	return (val);
248}
249
250static int
251get_int(const char *s)
252{
253	int val;
254	char *ep;
255
256	errno = 0;
257	val = strtoul(s, &ep, 0);
258	if (errno) {
259		err(1, "%s", s);
260	}
261	if (*ep != '\0') {
262		errx(1, "illegal number: %s", s);
263	}
264	return val;
265}
266
267static void
268duplicate_option(const char *ptr)
269{
270	fprintf(stderr, "Syntax error: "
271	    "Duplicate option: '%s'\n", ptr);
272	exit(1);
273}
274
275static void
276usage(void)
277{
278	fprintf(stderr, ""
279	    "usbconfig - configure the USB subsystem" "\n"
280	    "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
281	    "usage: usbconfig -d [ugen]<busnum>.<devaddr> -i <ifaceindex> [cmds...]" "\n"
282	    "commands:" "\n"
283	    "  set_config <cfg_index>" "\n"
284	    "  set_alt <alt_index>" "\n"
285	    "  set_template <template>" "\n"
286	    "  get_template" "\n"
287	    "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
288	    "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
289	    "  add_quirk <quirk>" "\n"
290	    "  remove_quirk <quirk>" "\n"
291	    "  detach_kernel_driver" "\n"
292	    "  dump_quirk_names" "\n"
293	    "  dump_device_quirks" "\n"
294	    "  dump_all_desc" "\n"
295	    "  dump_device_desc" "\n"
296	    "  dump_curr_config_desc" "\n"
297	    "  dump_all_config_desc" "\n"
298	    "  dump_string <index>" "\n"
299	    "  dump_info" "\n"
300	    "  dump_stats" "\n"
301	    "  show_ifdrv" "\n"
302	    "  suspend" "\n"
303	    "  resume" "\n"
304	    "  power_off" "\n"
305	    "  power_save" "\n"
306	    "  power_on" "\n"
307	    "  reset" "\n"
308	    "  list" "\n"
309	    "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
310	);
311	exit(1);
312}
313
314static void
315reset_options(struct options *opt)
316{
317	if (opt->buffer)
318		free(opt->buffer);
319	memset(opt, 0, sizeof(*opt));
320	return;
321}
322
323static void
324flush_command(struct libusb20_backend *pbe, struct options *opt)
325{
326	struct libusb20_device *pdev = NULL;
327	uint32_t matches = 0;
328	uint8_t dump_any;
329
330	/* check for invalid option combinations */
331	if ((opt->got_suspend +
332	    opt->got_resume +
333	    opt->got_reset +
334	    opt->got_set_config +
335	    opt->got_set_alt +
336	    opt->got_power_save +
337	    opt->got_power_on +
338	    opt->got_power_off) > 1) {
339		err(1, "can only specify one of 'set_config', "
340		    "'set_alt', 'reset', 'suspend', 'resume', "
341		    "'power_save', 'power_on' and 'power_off' "
342		    "at the same time!");
343	}
344	if (opt->got_dump_quirk_names) {
345		opt->got_any--;
346		dump_be_quirk_names(pbe);
347	}
348	if (opt->got_dump_device_quirks) {
349		opt->got_any--;
350		dump_be_dev_quirks(pbe);
351	}
352	if (opt->got_remove_device_quirk) {
353		opt->got_any--;
354		be_dev_remove_quirk(pbe,
355		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
356	}
357	if (opt->got_add_device_quirk) {
358		opt->got_any--;
359		be_dev_add_quirk(pbe,
360		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
361	}
362	if (opt->got_set_template) {
363		opt->got_any--;
364		if (libusb20_be_set_template(pbe, opt->template)) {
365			fprintf(stderr, "Setting USB template %u failed, "
366			    "continuing.\n", opt->template);
367		}
368	}
369	if (opt->got_get_template) {
370		opt->got_any--;
371		if (libusb20_be_get_template(pbe, &opt->template))
372			printf("USB template: <unknown>\n");
373		else
374			printf("USB template: %u\n", opt->template);
375	}
376	if (opt->got_any == 0) {
377		/*
378		 * do not scan through all the devices if there are no valid
379		 * options
380		 */
381		goto done;
382	}
383	while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
384
385		if (opt->got_bus &&
386		    (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
387			continue;
388		}
389		if (opt->got_addr &&
390		    (libusb20_dev_get_address(pdev) != opt->addr)) {
391			continue;
392		}
393		matches++;
394
395		if (opt->got_remove_quirk) {
396			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
397
398			ddesc = libusb20_dev_get_device_desc(pdev);
399
400			be_dev_remove_quirk(pbe,
401			    ddesc->idVendor, ddesc->idProduct,
402			    ddesc->bcdDevice, ddesc->bcdDevice,
403			    opt->quirkname);
404		}
405
406		if (opt->got_add_quirk) {
407			struct LIBUSB20_DEVICE_DESC_DECODED *ddesc;
408
409			ddesc = libusb20_dev_get_device_desc(pdev);
410
411			be_dev_add_quirk(pbe,
412			    ddesc->idVendor, ddesc->idProduct,
413			    ddesc->bcdDevice, ddesc->bcdDevice,
414			    opt->quirkname);
415		}
416
417		if (libusb20_dev_open(pdev, 0)) {
418			err(1, "could not open device");
419		}
420		if (opt->got_dump_string) {
421			dump_string_by_index(pdev, opt->string_index);
422		}
423		if (opt->got_do_request) {
424			uint16_t actlen;
425			uint16_t t;
426
427			if (libusb20_dev_request_sync(pdev, &opt->setup,
428			    opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
429				printf("REQUEST = <ERROR>\n");
430			} else if (!(opt->setup.bmRequestType &
431			    LIBUSB20_ENDPOINT_IN)) {
432				printf("REQUEST = <OK>\n");
433			} else {
434				t = actlen;
435				printf("REQUEST = <");
436				for (t = 0; t != actlen; t++) {
437					printf("0x%02x%s",
438					    ((uint8_t *)opt->buffer)[t],
439					    (t == (actlen - 1)) ? "" : " ");
440				}
441				printf("><");
442				for (t = 0; t != actlen; t++) {
443					char c;
444
445					c = ((uint8_t *)opt->buffer)[t];
446					if ((c != '<') &&
447					    (c != '>') && isprint(c)) {
448						putchar(c);
449					}
450				}
451				printf(">\n");
452			}
453		}
454		if (opt->got_set_config) {
455			if (libusb20_dev_set_config_index(pdev,
456			    opt->config_index)) {
457				err(1, "could not set config index");
458			}
459		}
460		if (opt->got_set_alt) {
461			if (libusb20_dev_set_alt_index(pdev, opt->iface,
462			    opt->alt_index)) {
463				err(1, "could not set alternate setting");
464			}
465		}
466		if (opt->got_reset) {
467			if (libusb20_dev_reset(pdev)) {
468				err(1, "could not reset device");
469			}
470		}
471		if (opt->got_suspend) {
472			if (libusb20_dev_set_power_mode(pdev,
473			    LIBUSB20_POWER_SUSPEND)) {
474				err(1, "could not set suspend");
475			}
476		}
477		if (opt->got_resume) {
478			if (libusb20_dev_set_power_mode(pdev,
479			    LIBUSB20_POWER_RESUME)) {
480				err(1, "could not set resume");
481			}
482		}
483		if (opt->got_power_off) {
484			if (libusb20_dev_set_power_mode(pdev,
485			    LIBUSB20_POWER_OFF)) {
486				err(1, "could not set power OFF");
487			}
488		}
489		if (opt->got_power_save) {
490			if (libusb20_dev_set_power_mode(pdev,
491			    LIBUSB20_POWER_SAVE)) {
492				err(1, "could not set power SAVE");
493			}
494		}
495		if (opt->got_power_on) {
496			if (libusb20_dev_set_power_mode(pdev,
497			    LIBUSB20_POWER_ON)) {
498				err(1, "could not set power ON");
499			}
500		}
501		if (opt->got_detach_kernel_driver) {
502			if (libusb20_dev_detach_kernel_driver(pdev, opt->iface)) {
503				err(1, "could not detach kernel driver");
504			}
505		}
506		dump_any =
507		    (opt->got_dump_all_desc ||
508		    opt->got_dump_device_desc ||
509		    opt->got_dump_curr_config ||
510		    opt->got_dump_all_config ||
511		    opt->got_dump_info ||
512		    opt->got_dump_stats);
513
514		if (opt->got_list || dump_any) {
515			dump_device_info(pdev,
516			    opt->got_show_iface_driver);
517		}
518		if (opt->got_dump_device_desc) {
519			printf("\n");
520			dump_device_desc(pdev);
521		}
522		if (opt->got_dump_all_config) {
523			printf("\n");
524			dump_config(pdev, 1);
525		} else if (opt->got_dump_curr_config) {
526			printf("\n");
527			dump_config(pdev, 0);
528		} else if (opt->got_dump_all_desc) {
529			printf("\n");
530			dump_device_desc(pdev);
531			dump_config(pdev, 1);
532		}
533		if (opt->got_dump_stats) {
534			printf("\n");
535			dump_device_stats(pdev);
536		}
537		if (dump_any) {
538			printf("\n");
539		}
540		if (libusb20_dev_close(pdev)) {
541			err(1, "could not close device");
542		}
543	}
544
545	if (matches == 0) {
546		printf("No device match or lack of permissions.\n");
547	}
548done:
549	reset_options(opt);
550
551	return;
552}
553
554int
555main(int argc, char **argv)
556{
557	struct libusb20_backend *pbe;
558	struct options *opt = &options;
559	const char *ptr;
560	int unit;
561	int addr;
562	int n;
563	int t;
564
565	if (argc < 1) {
566		usage();
567	}
568	pbe = libusb20_be_alloc_default();
569	if (pbe == NULL)
570		err(1, "could not access USB backend\n");
571
572	for (n = 1; n != argc; n++) {
573
574		/* get number of additional options */
575		t = (argc - n - 1);
576		if (t > 255)
577			t = 255;
578		switch (get_token(argv[n], t)) {
579		case T_ADD_QUIRK:
580			if (opt->got_add_quirk) {
581				flush_command(pbe, opt);
582			}
583			opt->quirkname = argv[n + 1];
584			n++;
585
586			opt->got_add_quirk = 1;
587			opt->got_any++;
588			break;
589
590		case T_REMOVE_QUIRK:
591			if (opt->got_remove_quirk) {
592				flush_command(pbe, opt);
593			}
594			opt->quirkname = argv[n + 1];
595			n++;
596
597			opt->got_remove_quirk = 1;
598			opt->got_any++;
599			break;
600
601		case T_ADD_DEVICE_QUIRK:
602			if (opt->got_add_device_quirk) {
603				flush_command(pbe, opt);
604			}
605			opt->vid = num_id(argv[n + 1], "Vendor ID");
606			opt->pid = num_id(argv[n + 2], "Product ID");
607			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
608			opt->hi_rev = num_id(argv[n + 4], "High Revision");
609			opt->quirkname = argv[n + 5];
610			n += 5;
611
612			opt->got_add_device_quirk = 1;
613			opt->got_any++;
614			break;
615
616		case T_REMOVE_DEVICE_QUIRK:
617			if (opt->got_remove_device_quirk) {
618				flush_command(pbe, opt);
619			}
620			opt->vid = num_id(argv[n + 1], "Vendor ID");
621			opt->pid = num_id(argv[n + 2], "Product ID");
622			opt->lo_rev = num_id(argv[n + 3], "Low Revision");
623			opt->hi_rev = num_id(argv[n + 4], "High Revision");
624			opt->quirkname = argv[n + 5];
625			n += 5;
626			opt->got_remove_device_quirk = 1;
627			opt->got_any++;
628			break;
629
630		case T_DETACH_KERNEL_DRIVER:
631			if (opt->got_detach_kernel_driver)
632				duplicate_option(argv[n]);
633			opt->got_detach_kernel_driver = 1;
634			opt->got_any++;
635			break;
636
637		case T_DUMP_QUIRK_NAMES:
638			if (opt->got_dump_quirk_names)
639				duplicate_option(argv[n]);
640			opt->got_dump_quirk_names = 1;
641			opt->got_any++;
642			break;
643
644		case T_DUMP_DEVICE_QUIRKS:
645			if (opt->got_dump_device_quirks)
646				duplicate_option(argv[n]);
647			opt->got_dump_device_quirks = 1;
648			opt->got_any++;
649			break;
650
651		case T_SHOW_IFACE_DRIVER:
652			opt->got_show_iface_driver = 1;
653			break;
654
655		case T_UGEN:
656			if (opt->got_any) {
657				/* allow multiple commands on the same line */
658				flush_command(pbe, opt);
659			}
660			ptr = argv[n + 1];
661
662			if ((ptr[0] == 'u') &&
663			    (ptr[1] == 'g') &&
664			    (ptr[2] == 'e') &&
665			    (ptr[3] == 'n'))
666				ptr += 4;
667
668			if ((sscanf(ptr, "%d.%d",
669			    &unit, &addr) != 2) ||
670			    (unit < 0) || (unit > 65535) ||
671			    (addr < 0) || (addr > 65535)) {
672				errx(1, "cannot "
673				    "parse '%s'", argv[n + 1]);
674			}
675			opt->bus = unit;
676			opt->addr = addr;
677			opt->got_bus = 1;
678			opt->got_addr = 1;
679			n++;
680			break;
681
682		case T_UNIT:
683			if (opt->got_any) {
684				/* allow multiple commands on the same line */
685				flush_command(pbe, opt);
686			}
687			opt->bus = num_id(argv[n + 1], "busnum");
688			opt->got_bus = 1;
689			n++;
690			break;
691		case T_ADDR:
692			opt->addr = num_id(argv[n + 1], "addr");
693			opt->got_addr = 1;
694			n++;
695			break;
696		case T_IFACE:
697			opt->iface = num_id(argv[n + 1], "iface");
698			opt->got_iface = 1;
699			n++;
700			break;
701		case T_SET_CONFIG:
702			if (opt->got_set_config)
703				duplicate_option(argv[n]);
704			opt->config_index = num_id(argv[n + 1], "cfg_index");
705			opt->got_set_config = 1;
706			opt->got_any++;
707			n++;
708			break;
709		case T_SET_ALT:
710			if (opt->got_set_alt)
711				duplicate_option(argv[n]);
712			opt->alt_index = num_id(argv[n + 1], "cfg_index");
713			opt->got_set_alt = 1;
714			opt->got_any++;
715			n++;
716			break;
717		case T_SET_TEMPLATE:
718			if (opt->got_set_template)
719				duplicate_option(argv[n]);
720			opt->template = get_int(argv[n + 1]);
721			opt->got_set_template = 1;
722			opt->got_any++;
723			n++;
724			break;
725		case T_GET_TEMPLATE:
726			if (opt->got_get_template)
727				duplicate_option(argv[n]);
728			opt->got_get_template = 1;
729			opt->got_any++;
730			break;
731		case T_DUMP_ALL_DESC:
732			if (opt->got_dump_all_desc)
733				duplicate_option(argv[n]);
734			opt->got_dump_all_desc = 1;
735			opt->got_any++;
736			break;
737		case T_DUMP_DEVICE_DESC:
738			if (opt->got_dump_device_desc)
739				duplicate_option(argv[n]);
740			opt->got_dump_device_desc = 1;
741			opt->got_any++;
742			break;
743		case T_DUMP_CURR_CONFIG_DESC:
744			if (opt->got_dump_curr_config)
745				duplicate_option(argv[n]);
746			opt->got_dump_curr_config = 1;
747			opt->got_any++;
748			break;
749		case T_DUMP_ALL_CONFIG_DESC:
750			if (opt->got_dump_all_config)
751				duplicate_option(argv[n]);
752			opt->got_dump_all_config = 1;
753			opt->got_any++;
754			break;
755		case T_DUMP_INFO:
756			if (opt->got_dump_info)
757				duplicate_option(argv[n]);
758			opt->got_dump_info = 1;
759			opt->got_any++;
760			break;
761		case T_DUMP_STATS:
762			if (opt->got_dump_stats)
763				duplicate_option(argv[n]);
764			opt->got_dump_stats = 1;
765			opt->got_any++;
766			break;
767		case T_DUMP_STRING:
768			if (opt->got_dump_string)
769				duplicate_option(argv[n]);
770			opt->string_index = num_id(argv[n + 1], "str_index");
771			opt->got_dump_string = 1;
772			opt->got_any++;
773			n++;
774			break;
775		case T_SUSPEND:
776			if (opt->got_suspend)
777				duplicate_option(argv[n]);
778			opt->got_suspend = 1;
779			opt->got_any++;
780			break;
781		case T_RESUME:
782			if (opt->got_resume)
783				duplicate_option(argv[n]);
784			opt->got_resume = 1;
785			opt->got_any++;
786			break;
787		case T_POWER_OFF:
788			if (opt->got_power_off)
789				duplicate_option(argv[n]);
790			opt->got_power_off = 1;
791			opt->got_any++;
792			break;
793		case T_POWER_SAVE:
794			if (opt->got_power_save)
795				duplicate_option(argv[n]);
796			opt->got_power_save = 1;
797			opt->got_any++;
798			break;
799		case T_POWER_ON:
800			if (opt->got_power_on)
801				duplicate_option(argv[n]);
802			opt->got_power_on = 1;
803			opt->got_any++;
804			break;
805		case T_RESET:
806			if (opt->got_reset)
807				duplicate_option(argv[n]);
808			opt->got_reset = 1;
809			opt->got_any++;
810			break;
811		case T_LIST:
812			if (opt->got_list)
813				duplicate_option(argv[n]);
814			opt->got_list = 1;
815			opt->got_any++;
816			break;
817		case T_DO_REQUEST:
818			if (opt->got_do_request)
819				duplicate_option(argv[n]);
820			LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
821			opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
822			opt->setup.bRequest = num_id(argv[n + 2], "bReq");
823			opt->setup.wValue = num_id(argv[n + 3], "wVal");
824			opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
825			opt->setup.wLength = num_id(argv[n + 5], "wLen");
826			if (opt->setup.wLength != 0) {
827				opt->buffer = malloc(opt->setup.wLength);
828			} else {
829				opt->buffer = NULL;
830			}
831
832			n += 5;
833
834			if (!(opt->setup.bmRequestType &
835			    LIBUSB20_ENDPOINT_IN)) {
836				/* copy in data */
837				t = (argc - n - 1);
838				if (t < opt->setup.wLength) {
839					err(1, "request data missing");
840				}
841				t = opt->setup.wLength;
842				while (t--) {
843					((uint8_t *)opt->buffer)[t] =
844					    num_id(argv[n + t + 1], "req_data");
845				}
846				n += opt->setup.wLength;
847			}
848			opt->got_do_request = 1;
849			opt->got_any++;
850			break;
851		default:
852			if (n == 1) {
853				ptr = argv[n];
854
855				if ((ptr[0] == 'u') &&
856				    (ptr[1] == 'g') &&
857				    (ptr[2] == 'e') &&
858				    (ptr[3] == 'n'))
859					ptr += 4;
860
861				if ((sscanf(ptr, "%d.%d",
862				    &unit, &addr) != 2) ||
863				    (unit < 0) || (unit > 65535) ||
864				    (addr < 0) || (addr > 65535)) {
865					usage();
866					break;
867				}
868
869				opt->bus = unit;
870				opt->addr = addr;
871				opt->got_bus = 1;
872				opt->got_addr = 1;
873				break;
874			}
875			usage();
876			break;
877		}
878	}
879	if (opt->got_any) {
880		/* flush out last command */
881		flush_command(pbe, opt);
882	} else {
883		/* list all the devices */
884		opt->got_list = 1;
885		opt->got_any++;
886		flush_command(pbe, opt);
887	}
888	/* release data */
889	libusb20_be_free(pbe);
890
891	return (0);
892}
893