busybox/util-linux/lsusb.c

/* vi: set sw=4 ts=4: */
/*
 * lsusb implementation for busybox
 *
 * Copyright (C) 2009  Malek Degachi <malek-degachi@laposte.net>
 *
 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 */
#include "libbb.h"

static int FAST_FUNC fileAction(
		const char *fileName,
		struct stat *statbuf UNUSED_PARAM,
		void *userData UNUSED_PARAM,
		int depth UNUSED_PARAM)
{
	parser_t *parser;
	char *tokens[4];
	char *busnum = NULL, *devnum = NULL;
	int product_vid = 0, product_did = 0;
	char *uevent_filename = concat_path_file(fileName, "/uevent");

	parser = config_open2(uevent_filename, fopen_for_read);
	free(uevent_filename);

	while (config_read(parser, tokens, 4, 2, "\\/=", PARSE_NORMAL)) {
		if ((parser->lineno == 1) && strcmp(tokens[0], "DEVTYPE") == 0) {
			break;
		}

		if (strcmp(tokens[0], "PRODUCT") == 0) {
			product_vid = xstrtou(tokens[1], 16);
			product_did = xstrtou(tokens[2], 16);
			continue;
		}

		if (strcmp(tokens[0], "BUSNUM") == 0) {
			busnum = xstrdup(tokens[1]);
			continue;
		}

		if (strcmp(tokens[0], "DEVNUM") == 0) {
			devnum = xstrdup(tokens[1]);
			continue;
		}
	}
	config_close(parser);

	if (busnum) {
		printf("Bus %s Device %s: ID %04x:%04x\n", busnum, devnum, product_vid, product_did);
		free(busnum);
		free(devnum);
	}

	return TRUE;
}

int lsusb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int lsusb_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
{
	/* no options, no getopt */

	recursive_action("/sys/bus/usb/devices",
			ACTION_RECURSE,
			fileAction,
			NULL, /* dirAction */
			NULL, /* userData */
			0 /* depth */);

	return EXIT_SUCCESS;
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* lsusb implementation for busybox
4	*
5	* Copyright (C) 2009 Malek Degachi <malek-degachi@laposte.net>
6	*
7	* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
8	*/
9	#include "libbb.h"
10
11	static int FAST_FUNC fileAction(
12	const char *fileName,
13	struct stat *statbuf UNUSED_PARAM,
14	void *userData UNUSED_PARAM,
15	int depth UNUSED_PARAM)
16	{
17	parser_t *parser;
18	char *tokens[4];
19	char busnum = NULL, devnum = NULL;
20	int product_vid = 0, product_did = 0;
21	char *uevent_filename = concat_path_file(fileName, "/uevent");
22
23	parser = config_open2(uevent_filename, fopen_for_read);
24	free(uevent_filename);
25
26	while (config_read(parser, tokens, 4, 2, "\\/=", PARSE_NORMAL)) {
27	if ((parser->lineno == 1) && strcmp(tokens[0], "DEVTYPE") == 0) {
28	break;
29	}
30
31	if (strcmp(tokens[0], "PRODUCT") == 0) {
32	product_vid = xstrtou(tokens[1], 16);
33	product_did = xstrtou(tokens[2], 16);
34	continue;
35	}
36
37	if (strcmp(tokens[0], "BUSNUM") == 0) {
38	busnum = xstrdup(tokens[1]);
39	continue;
40	}
41
42	if (strcmp(tokens[0], "DEVNUM") == 0) {
43	devnum = xstrdup(tokens[1]);
44	continue;
45	}
46	}
47	config_close(parser);
48
49	if (busnum) {
50	printf("Bus %s Device %s: ID %04x:%04x\n", busnum, devnum, product_vid, product_did);
51	free(busnum);
52	free(devnum);
53	}
54
55	return TRUE;
56	}
57
58	int lsusb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
59	int lsusb_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
60	{
61	/* no options, no getopt */
62
63	recursive_action("/sys/bus/usb/devices",
64	ACTION_RECURSE,
65	fileAction,
66	NULL, /* dirAction */
67	NULL, /* userData */
68	0 /* depth */);
69
70	return EXIT_SUCCESS;
71	}