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26#include "libbb.h"
27
28static int FAST_FUNC fileAction(
29 const char *fileName,
30 struct stat *statbuf UNUSED_PARAM,
31 void *userData UNUSED_PARAM,
32 int depth UNUSED_PARAM)
33{
34 parser_t *parser;
35 char *tokens[4];
36 char *busnum = NULL, *devnum = NULL;
37 int product_vid = 0, product_did = 0;
38 char *uevent_filename = concat_path_file(fileName, "/uevent");
39
40 parser = config_open2(uevent_filename, fopen_for_read);
41 free(uevent_filename);
42
43 while (config_read(parser, tokens, 4, 2, "\\/=", PARSE_NORMAL)) {
44 if ((parser->lineno == 1) && strcmp(tokens[0], "DEVTYPE") == 0) {
45 break;
46 }
47
48 if (strcmp(tokens[0], "PRODUCT") == 0) {
49 product_vid = xstrtou(tokens[1], 16);
50 product_did = xstrtou(tokens[2], 16);
51 continue;
52 }
53
54 if (strcmp(tokens[0], "BUSNUM") == 0) {
55 busnum = xstrdup(tokens[1]);
56 continue;
57 }
58
59 if (strcmp(tokens[0], "DEVNUM") == 0) {
60 devnum = xstrdup(tokens[1]);
61 continue;
62 }
63 }
64 config_close(parser);
65
66 if (busnum) {
67 printf("Bus %s Device %s: ID %04x:%04x\n", busnum, devnum, product_vid, product_did);
68 free(busnum);
69 free(devnum);
70 }
71
72 return TRUE;
73}
74
75int lsusb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
76int lsusb_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
77{
78
79
80 recursive_action("/sys/bus/usb/devices",
81 ACTION_RECURSE,
82 fileAction,
83 NULL,
84 NULL,
85 0 );
86
87 return EXIT_SUCCESS;
88}
89