hush/util-linux/lsusb.c
Souf Oued 11a802a0fa lsusb: new applet. +400 bytes
Signed-off-by: Souf Oued <souf_oued@yahoo.fr>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-12-07 01:37:34 +01:00

68 lines
1.5 KiB
C

/* vi: set sw=4 ts=4: */
/*
* lspci 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[6];
char *bus = NULL, *device = 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, 6, 1, "\\/=", PARSE_NORMAL)) {
if ((parser->lineno == 1) && strcmp(tokens[0], "DEVTYPE") == 0) {
break;
}
if (strcmp(tokens[0], "DEVICE") == 0) {
bus = xstrdup(tokens[4]);
device = xstrdup(tokens[5]);
continue;
}
if (strcmp(tokens[0], "PRODUCT") == 0) {
product_vid = xstrtou(tokens[1], 16);
product_did = xstrtou(tokens[2], 16);
continue;
}
}
config_close(parser);
if (bus) {
printf("Bus %s Device %s: ID %04x:%04x\n", bus, device, product_vid, product_did);
free(bus);
free(device);
}
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;
}