usbconfig.c revision 188622 
1/* $FreeBSD: head/usr.sbin/usbconfig/usbconfig.c 188622 2009-02-14 23:20:00Z thompsa $ */
2/*-
3 * Copyright (c) 2008 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
37#include <libusb20_desc.h>
38#include <libusb20.h>
39
40#include "dump.h"
41
42struct options {
43	const char *quirkname;
44	void   *buffer;
45	gid_t	gid;
46	uid_t	uid;
47	mode_t	mode;
48	uint32_t got_any;
49	struct LIBUSB20_CONTROL_SETUP_DECODED setup;
50	uint16_t bus;
51	uint16_t addr;
52	uint16_t iface;
53	uint16_t vid;
54	uint16_t pid;
55	uint16_t lo_rev;		/* inclusive */
56	uint16_t hi_rev;		/* inclusive */
57	uint8_t	string_index;
58	uint8_t	config_index;
59	uint8_t	alt_index;
60	uint8_t	got_list:1;
61	uint8_t	got_bus:1;
62	uint8_t	got_addr:1;
63	uint8_t	got_iface:1;
64	uint8_t	got_set_config:1;
65	uint8_t	got_set_alt:1;
66	uint8_t	got_set_owner:1;
67	uint8_t	got_set_perm:1;
68	uint8_t	got_suspend:1;
69	uint8_t	got_resume:1;
70	uint8_t	got_reset:1;
71	uint8_t	got_power_off:1;
72	uint8_t	got_power_save:1;
73	uint8_t	got_power_on:1;
74	uint8_t	got_dump_device_quirks:1;
75	uint8_t	got_dump_quirk_names:1;
76	uint8_t	got_dump_device_desc:1;
77	uint8_t	got_dump_curr_config:1;
78	uint8_t	got_dump_all_config:1;
79	uint8_t	got_dump_info:1;
80	uint8_t	got_dump_access:1;
81	uint8_t	got_show_iface_driver:1;
82	uint8_t	got_remove_device_quirk:1;
83	uint8_t	got_add_device_quirk:1;
84	uint8_t	got_dump_string:1;
85	uint8_t	got_do_request:1;
86};
87
88struct token {
89	const char *name;
90	uint8_t	value;
91	uint8_t	narg;
92};
93
94enum {
95	T_UNIT,
96	T_ADDR,
97	T_IFACE,
98	T_SET_CONFIG,
99	T_SET_ALT,
100	T_SET_OWNER,
101	T_SET_PERM,
102	T_ADD_DEVICE_QUIRK,
103	T_REMOVE_DEVICE_QUIRK,
104	T_SHOW_IFACE_DRIVER,
105	T_DUMP_QUIRK_NAMES,
106	T_DUMP_DEVICE_QUIRKS,
107	T_DUMP_DEVICE_DESC,
108	T_DUMP_CURR_CONFIG_DESC,
109	T_DUMP_ALL_CONFIG_DESC,
110	T_DUMP_STRING,
111	T_DUMP_ACCESS,
112	T_DUMP_INFO,
113	T_SUSPEND,
114	T_RESUME,
115	T_POWER_OFF,
116	T_POWER_SAVE,
117	T_POWER_ON,
118	T_RESET,
119	T_LIST,
120	T_DO_REQUEST,
121};
122
123static struct options options;
124
125static const struct token token[] = {
126	{"-u", T_UNIT, 1},
127	{"-a", T_ADDR, 1},
128	{"-i", T_IFACE, 1},
129	{"set_config", T_SET_CONFIG, 1},
130	{"set_alt", T_SET_ALT, 1},
131	{"set_owner", T_SET_OWNER, 1},
132	{"set_perm", T_SET_PERM, 1},
133	{"add_dev_quirk_vplh", T_ADD_DEVICE_QUIRK, 5},
134	{"remove_dev_quirk_vplh", T_REMOVE_DEVICE_QUIRK, 5},
135	{"dump_quirk_names", T_DUMP_QUIRK_NAMES, 0},
136	{"dump_device_quirks", T_DUMP_DEVICE_QUIRKS, 0},
137	{"dump_device_desc", T_DUMP_DEVICE_DESC, 0},
138	{"dump_curr_config_desc", T_DUMP_CURR_CONFIG_DESC, 0},
139	{"dump_all_config_desc", T_DUMP_ALL_CONFIG_DESC, 0},
140	{"dump_string", T_DUMP_STRING, 1},
141	{"dump_access", T_DUMP_ACCESS, 0},
142	{"dump_info", T_DUMP_INFO, 0},
143	{"show_ifdrv", T_SHOW_IFACE_DRIVER, 0},
144	{"suspend", T_SUSPEND, 0},
145	{"resume", T_RESUME, 0},
146	{"power_off", T_POWER_OFF, 0},
147	{"power_save", T_POWER_SAVE, 0},
148	{"power_on", T_POWER_ON, 0},
149	{"reset", T_RESET, 0},
150	{"list", T_LIST, 0},
151	{"do_request", T_DO_REQUEST, 5},
152};
153
154static void
155be_dev_remove_quirk(struct libusb20_backend *pbe,
156    uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
157    const char *str)
158{
159	struct libusb20_quirk q;
160	int error;
161
162	memset(&q, 0, sizeof(q));
163
164	q.vid = vid;
165	q.pid = pid;
166	q.bcdDeviceLow = lorev;
167	q.bcdDeviceHigh = hirev;
168	strlcpy(q.quirkname, str, sizeof(q.quirkname));
169
170	error = libusb20_be_remove_dev_quirk(pbe, &q);
171	if (error) {
172		printf("Removing quirk '%s' failed, continuing.\n", str);
173	}
174	return;
175}
176
177static void
178be_dev_add_quirk(struct libusb20_backend *pbe,
179    uint16_t vid, uint16_t pid, uint16_t lorev, uint16_t hirev,
180    const char *str)
181{
182	struct libusb20_quirk q;
183	int error;
184
185	memset(&q, 0, sizeof(q));
186
187	q.vid = vid;
188	q.pid = pid;
189	q.bcdDeviceLow = lorev;
190	q.bcdDeviceHigh = hirev;
191	strlcpy(q.quirkname, str, sizeof(q.quirkname));
192
193	error = libusb20_be_add_dev_quirk(pbe, &q);
194	if (error) {
195		printf("Adding quirk '%s' failed, continuing.\n", str);
196	}
197	return;
198}
199
200static uint8_t
201get_token(const char *str, uint8_t narg)
202{
203	uint8_t n;
204
205	for (n = 0; n != (sizeof(token) / sizeof(token[0])); n++) {
206		if (strcasecmp(str, token[n].name) == 0) {
207			if (token[n].narg > narg) {
208				/* too few arguments */
209				break;
210			}
211			return (token[n].value);
212		}
213	}
214	return (0 - 1);
215}
216
217static uid_t
218num_id(const char *name, const char *type)
219{
220	uid_t val;
221	char *ep;
222
223	errno = 0;
224	val = strtoul(name, &ep, 0);
225	if (errno) {
226		err(1, "%s", name);
227	}
228	if (*ep != '\0') {
229		errx(1, "%s: illegal %s name", name, type);
230	}
231	return (val);
232}
233
234static gid_t
235a_gid(const char *s)
236{
237	struct group *gr;
238
239	if (*s == '\0') {
240		/* empty group ID */
241		return ((gid_t)-1);
242	}
243	return ((gr = getgrnam(s)) ? gr->gr_gid : num_id(s, "group"));
244}
245
246static uid_t
247a_uid(const char *s)
248{
249	struct passwd *pw;
250
251	if (*s == '\0') {
252		/* empty user ID */
253		return ((uid_t)-1);
254	}
255	return ((pw = getpwnam(s)) ? pw->pw_uid : num_id(s, "user"));
256}
257
258static mode_t
259a_mode(const char *s)
260{
261	uint16_t val;
262	char *ep;
263
264	errno = 0;
265	val = strtoul(s, &ep, 8);
266	if (errno) {
267		err(1, "%s", s);
268	}
269	if (*ep != '\0') {
270		errx(1, "illegal permissions: %s", s);
271	}
272	return val;
273}
274
275static void
276usage(void)
277{
278	printf(""
279	    "usbconfig - configure the USB subsystem" "\n"
280	    "usage: usbconfig -u <busnum> -a <devaddr> -i <ifaceindex> [cmds...]" "\n"
281	    "commands:" "\n"
282	    "  set_config <cfg_index>" "\n"
283	    "  set_alt <alt_index>" "\n"
284	    "  set_owner <user:group>" "\n"
285	    "  set_perm <mode>" "\n"
286	    "  add_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
287	    "  remove_dev_quirk_vplh <vid> <pid> <lo_rev> <hi_rev> <quirk>" "\n"
288	    "  dump_quirk_names" "\n"
289	    "  dump_device_quirks" "\n"
290	    "  dump_device_desc" "\n"
291	    "  dump_curr_config_desc" "\n"
292	    "  dump_all_config_desc" "\n"
293	    "  dump_string <index>" "\n"
294	    "  dump_access" "\n"
295	    "  dump_info" "\n"
296	    "  show_ifdrv" "\n"
297	    "  suspend" "\n"
298	    "  resume" "\n"
299	    "  power_off" "\n"
300	    "  power_save" "\n"
301	    "  power_on" "\n"
302	    "  reset" "\n"
303	    "  list" "\n"
304	    "  do_request <bmReqTyp> <bReq> <wVal> <wIdx> <wLen> <data...>" "\n"
305	);
306	exit(1);
307}
308
309static void
310reset_options(struct options *opt)
311{
312	if (opt->buffer)
313		free(opt->buffer);
314	memset(opt, 0, sizeof(*opt));
315	return;
316}
317
318static void
319flush_command(struct libusb20_backend *pbe, struct options *opt)
320{
321	struct libusb20_device *pdev = NULL;
322	uint32_t matches = 0;
323	uint8_t dump_any;
324
325	/* check for invalid option combinations */
326	if ((opt->got_suspend +
327	    opt->got_resume +
328	    opt->got_reset +
329	    opt->got_set_config +
330	    opt->got_set_alt +
331	    opt->got_power_save +
332	    opt->got_power_on +
333	    opt->got_power_off) > 1) {
334		err(1, "can only specify one of 'set_config', "
335		    "'set_alt', 'reset', 'suspend', 'resume', "
336		    "'power_save', 'power_on' and 'power_off' "
337		    "at the same time!");
338	}
339	if (opt->got_dump_access) {
340		opt->got_any--;
341		dump_be_access(pbe);
342	}
343	if (opt->got_dump_quirk_names) {
344		opt->got_any--;
345		dump_be_quirk_names(pbe);
346	}
347	if (opt->got_dump_device_quirks) {
348		opt->got_any--;
349		dump_be_dev_quirks(pbe);
350	}
351	if (opt->got_remove_device_quirk) {
352		opt->got_any--;
353		be_dev_remove_quirk(pbe,
354		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
355	}
356	if (opt->got_add_device_quirk) {
357		opt->got_any--;
358		be_dev_add_quirk(pbe,
359		    opt->vid, opt->pid, opt->lo_rev, opt->hi_rev, opt->quirkname);
360	}
361	if (opt->got_any == 0) {
362		/*
363		 * do not scan through all the devices if there are no valid
364		 * options
365		 */
366		goto done;
367	}
368	while ((pdev = libusb20_be_device_foreach(pbe, pdev))) {
369
370		if (opt->got_bus &&
371		    (libusb20_dev_get_bus_number(pdev) != opt->bus)) {
372			continue;
373		}
374		if (opt->got_addr &&
375		    (libusb20_dev_get_address(pdev) != opt->addr)) {
376			continue;
377		}
378		matches++;
379
380		/* do owner and permissions first */
381
382		if (opt->got_bus && opt->got_addr && opt->got_iface) {
383			if (opt->got_set_owner) {
384				if (libusb20_dev_set_iface_owner(pdev,
385				    opt->iface, opt->uid, opt->gid)) {
386					err(1, "setting owner and group failed\n");
387				}
388			}
389			if (opt->got_set_perm) {
390				if (libusb20_dev_set_iface_perm(pdev,
391				    opt->iface, opt->mode)) {
392					err(1, "setting mode failed\n");
393				}
394			}
395		} else if (opt->got_bus && opt->got_addr) {
396			if (opt->got_set_owner) {
397				if (libusb20_dev_set_owner(pdev,
398				    opt->uid, opt->gid)) {
399					err(1, "setting owner and group failed\n");
400				}
401			}
402			if (opt->got_set_perm) {
403				if (libusb20_dev_set_perm(pdev,
404				    opt->mode)) {
405					err(1, "setting mode failed\n");
406				}
407			}
408		} else if (opt->got_bus) {
409			if (opt->got_set_owner) {
410				if (libusb20_bus_set_owner(pbe, opt->bus,
411				    opt->uid, opt->gid)) {
412					err(1, "setting owner and group failed\n");
413				}
414			}
415			if (opt->got_set_perm) {
416				if (libusb20_bus_set_perm(pbe, opt->bus,
417				    opt->mode)) {
418					err(1, "setting mode failed\n");
419				}
420			}
421		} else {
422			if (opt->got_set_owner) {
423				if (libusb20_be_set_owner(pbe,
424				    opt->uid, opt->gid)) {
425					err(1, "setting owner and group failed\n");
426				}
427			}
428			if (opt->got_set_perm) {
429				if (libusb20_be_set_perm(pbe,
430				    opt->mode)) {
431					err(1, "setting mode failed\n");
432				}
433			}
434		}
435
436		if (libusb20_dev_open(pdev, 0)) {
437			err(1, "could not open device");
438		}
439		if (opt->got_dump_string) {
440			char *pbuf;
441
442			pbuf = malloc(256);
443			if (pbuf == NULL) {
444				err(1, "out of memory");
445			}
446			if (libusb20_dev_req_string_simple_sync(pdev,
447			    opt->string_index, pbuf, 256)) {
448				printf("STRING_0x%02x = <read error>\n",
449				    opt->string_index);
450			} else {
451				printf("STRING_0x%02x = <%s>\n",
452				    opt->string_index, pbuf);
453			}
454			free(pbuf);
455		}
456		if (opt->got_do_request) {
457			uint16_t actlen;
458			uint16_t t;
459
460			if (libusb20_dev_request_sync(pdev, &opt->setup,
461			    opt->buffer, &actlen, 5000 /* 5 seconds */ , 0)) {
462				printf("REQUEST = <ERROR>\n");
463			} else if (!(opt->setup.bmRequestType &
464			    LIBUSB20_ENDPOINT_IN)) {
465				printf("REQUEST = <OK>\n");
466			} else {
467				t = actlen;
468				printf("REQUEST = <");
469				for (t = 0; t != actlen; t++) {
470					printf("0x%02x%s",
471					    ((uint8_t *)opt->buffer)[t],
472					    (t == (actlen - 1)) ? "" : " ");
473				}
474				printf("><");
475				for (t = 0; t != actlen; t++) {
476					char c;
477
478					c = ((uint8_t *)opt->buffer)[t];
479					if ((c != '<') &&
480					    (c != '>') && isprint(c)) {
481						putchar(c);
482					}
483				}
484				printf(">\n");
485			}
486		}
487		if (opt->got_set_config) {
488			if (libusb20_dev_set_config_index(pdev,
489			    opt->config_index)) {
490				err(1, "could not set config index");
491			}
492		}
493		if (opt->got_set_alt) {
494			if (libusb20_dev_set_alt_index(pdev, opt->iface,
495			    opt->alt_index)) {
496				err(1, "could not set alternate setting");
497			}
498		}
499		if (opt->got_reset) {
500			if (libusb20_dev_reset(pdev)) {
501				err(1, "could not reset device");
502			}
503		}
504		if (opt->got_suspend) {
505			if (libusb20_dev_set_power_mode(pdev,
506			    LIBUSB20_POWER_SUSPEND)) {
507				err(1, "could not set suspend");
508			}
509		}
510		if (opt->got_resume) {
511			if (libusb20_dev_set_power_mode(pdev,
512			    LIBUSB20_POWER_RESUME)) {
513				err(1, "could not set resume");
514			}
515		}
516		if (opt->got_power_off) {
517			if (libusb20_dev_set_power_mode(pdev,
518			    LIBUSB20_POWER_OFF)) {
519				err(1, "could not set power OFF");
520			}
521		}
522		if (opt->got_power_save) {
523			if (libusb20_dev_set_power_mode(pdev,
524			    LIBUSB20_POWER_SAVE)) {
525				err(1, "could not set power SAVE");
526			}
527		}
528		if (opt->got_power_on) {
529			if (libusb20_dev_set_power_mode(pdev,
530			    LIBUSB20_POWER_ON)) {
531				err(1, "could not set power ON");
532			}
533		}
534		dump_any =
535		    (opt->got_dump_device_desc ||
536		    opt->got_dump_curr_config ||
537		    opt->got_dump_all_config ||
538		    opt->got_dump_info ||
539		    opt->got_dump_access);
540
541		if (opt->got_list || dump_any) {
542			dump_device_info(pdev,
543			    opt->got_show_iface_driver);
544		}
545		if (opt->got_dump_access) {
546			printf("\n");
547			dump_device_access(pdev, opt->got_iface ?
548			    opt->iface : 0xFF);
549		}
550		if (opt->got_dump_device_desc) {
551			printf("\n");
552			dump_device_desc(pdev);
553		}
554		if (opt->got_dump_all_config) {
555			printf("\n");
556			dump_config(pdev, 1);
557		} else if (opt->got_dump_curr_config) {
558			printf("\n");
559			dump_config(pdev, 0);
560		}
561		if (dump_any) {
562			printf("\n");
563		}
564		if (libusb20_dev_close(pdev)) {
565			err(1, "could not close device");
566		}
567	}
568
569	if (matches == 0) {
570		printf("No device match or lack of permissions.\n");
571	}
572done:
573	reset_options(opt);
574
575	return;
576}
577
578int
579main(int argc, char **argv)
580{
581	struct libusb20_backend *pbe;
582	struct options *opt = &options;
583	char *cp;
584	int n;
585	int t;
586
587	if (argc < 1) {
588		usage();
589	}
590	pbe = libusb20_be_alloc_default();
591	if (pbe == NULL)
592		err(1, "could not access USB backend\n");
593
594	for (n = 1; n != argc; n++) {
595
596		/* get number of additional options */
597		t = (argc - n - 1);
598		if (t > 255)
599			t = 255;
600		switch (get_token(argv[n], t)) {
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_DUMP_QUIRK_NAMES:
631			opt->got_dump_quirk_names = 1;
632			opt->got_any++;
633			break;
634
635		case T_DUMP_DEVICE_QUIRKS:
636			opt->got_dump_device_quirks = 1;
637			opt->got_any++;
638			break;
639
640		case T_SHOW_IFACE_DRIVER:
641			opt->got_show_iface_driver = 1;
642			break;
643
644		case T_UNIT:
645			if (opt->got_any) {
646				/* allow multiple commands on the same line */
647				flush_command(pbe, opt);
648			}
649			opt->bus = num_id(argv[n + 1], "busnum");
650			opt->got_bus = 1;
651			n++;
652			break;
653		case T_ADDR:
654			opt->addr = num_id(argv[n + 1], "addr");
655			opt->got_addr = 1;
656			n++;
657			break;
658		case T_IFACE:
659			opt->iface = num_id(argv[n + 1], "iface");
660			opt->got_iface = 1;
661			n++;
662			break;
663		case T_SET_CONFIG:
664			opt->config_index = num_id(argv[n + 1], "cfg_index");
665			opt->got_set_config = 1;
666			opt->got_any++;
667			n++;
668			break;
669		case T_SET_ALT:
670			opt->alt_index = num_id(argv[n + 1], "cfg_index");
671			opt->got_set_alt = 1;
672			opt->got_any++;
673			n++;
674			break;
675		case T_SET_OWNER:
676			cp = argv[n + 1];
677			cp = strchr(cp, ':');
678			if (cp == NULL) {
679				err(1, "missing colon in '%s'!", argv[n + 1]);
680			}
681			*(cp++) = '\0';
682			opt->gid = a_gid(cp);
683			opt->uid = a_uid(argv[n + 1]);
684			opt->got_set_owner = 1;
685			opt->got_any++;
686			n++;
687			break;
688		case T_SET_PERM:
689			opt->mode = a_mode(argv[n + 1]);
690			opt->got_set_perm = 1;
691			opt->got_any++;
692			n++;
693			break;
694		case T_DUMP_DEVICE_DESC:
695			opt->got_dump_device_desc = 1;
696			opt->got_any++;
697			break;
698		case T_DUMP_CURR_CONFIG_DESC:
699			opt->got_dump_curr_config = 1;
700			opt->got_any++;
701			break;
702		case T_DUMP_ALL_CONFIG_DESC:
703			opt->got_dump_all_config = 1;
704			opt->got_any++;
705			break;
706		case T_DUMP_INFO:
707			opt->got_dump_info = 1;
708			opt->got_any++;
709			break;
710		case T_DUMP_STRING:
711			if (opt->got_dump_string) {
712				flush_command(pbe, opt);
713			}
714			opt->string_index = num_id(argv[n + 1], "str_index");
715			opt->got_dump_string = 1;
716			opt->got_any++;
717			n++;
718			break;
719		case T_DUMP_ACCESS:
720			opt->got_dump_access = 1;
721			opt->got_any += 2;
722			break;
723		case T_SUSPEND:
724			opt->got_suspend = 1;
725			opt->got_any++;
726			break;
727		case T_RESUME:
728			opt->got_resume = 1;
729			opt->got_any++;
730			break;
731		case T_POWER_OFF:
732			opt->got_power_off = 1;
733			opt->got_any++;
734			break;
735		case T_POWER_SAVE:
736			opt->got_power_save = 1;
737			opt->got_any++;
738			break;
739		case T_POWER_ON:
740			opt->got_power_on = 1;
741			opt->got_any++;
742			break;
743		case T_RESET:
744			opt->got_reset = 1;
745			opt->got_any++;
746			break;
747		case T_LIST:
748			opt->got_list = 1;
749			opt->got_any++;
750			break;
751		case T_DO_REQUEST:
752			if (opt->got_do_request) {
753				flush_command(pbe, opt);
754			}
755			LIBUSB20_INIT(LIBUSB20_CONTROL_SETUP, &opt->setup);
756			opt->setup.bmRequestType = num_id(argv[n + 1], "bmReqTyp");
757			opt->setup.bRequest = num_id(argv[n + 2], "bReq");
758			opt->setup.wValue = num_id(argv[n + 3], "wVal");
759			opt->setup.wIndex = num_id(argv[n + 4], "wIndex");
760			opt->setup.wLength = num_id(argv[n + 5], "wLen");
761			if (opt->setup.wLength != 0) {
762				opt->buffer = malloc(opt->setup.wLength);
763			} else {
764				opt->buffer = NULL;
765			}
766
767			n += 5;
768
769			if (!(opt->setup.bmRequestType &
770			    LIBUSB20_ENDPOINT_IN)) {
771				/* copy in data */
772				t = (argc - n - 1);
773				if (t < opt->setup.wLength) {
774					err(1, "request data missing");
775				}
776				t = opt->setup.wLength;
777				while (t--) {
778					((uint8_t *)opt->buffer)[t] =
779					    num_id(argv[n + t + 1], "req_data");
780				}
781				n += opt->setup.wLength;
782			}
783			opt->got_do_request = 1;
784			opt->got_any++;
785			break;
786		default:
787			usage();
788			break;
789		}
790	}
791	if (opt->got_any) {
792		/* flush out last command */
793		flush_command(pbe, opt);
794	} else {
795		/* list all the devices */
796		opt->got_list = 1;
797		opt->got_any++;
798		flush_command(pbe, opt);
799	}
800	/* release data */
801	libusb20_be_free(pbe);
802
803	return (0);
804}
805