usbconfig.c revision 356407 
1/* $FreeBSD: stable/10/usr.sbin/usbconfig/usbconfig.c 356407 2020-01-06 09:40:18Z 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	uint8_t	got_detach_kernel_driver:1;
91};
92
93struct token {
94	const char *name;
95	uint8_t	value;
96	uint8_t	narg;
97};
98
99enum {
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
132static struct options options;
133
134static 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
167static void
168be_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
190static void
191be_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
213static uint8_t
214get_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
230static uid_t
231num_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
247static int
248get_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
264static void
265duplicate_option(const char *ptr)
266{
267	fprintf(stderr, "Syntax error: "
268	    "Duplicate option: '%s'\n", ptr);
269	exit(1);
270}
271
272static void
273usage(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
310static void
311reset_options(struct options *opt)
312{
313	if (opt->buffer)
314		free(opt->buffer);
315	memset(opt, 0, sizeof(*opt));
316	return;
317}
318
319static void
320flush_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	}
539done:
540	reset_options(opt);
541
542	return;
543}
544
545int
546main(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}
878