/* vi: set sw=4 ts=4: */ /* * lsusb implementation for busybox * * Copyright (C) 2009 Malek Degachi <malek-degachi@laposte.net> * * Licensed under GPLv2 or later, see file LICENSE in this source tree. */ //config:config LSUSB //config: bool "lsusb (3.5 kb)" //config: default y //config: #select PLATFORM_LINUX //config: help //config: lsusb is a utility for displaying information about USB buses in the //config: system and devices connected to them. //config: //config: This version uses sysfs (/sys/bus/usb/devices) only. //applet:IF_LSUSB(APPLET_NOEXEC(lsusb, lsusb, BB_DIR_USR_BIN, BB_SUID_DROP, lsusb)) //kbuild:lib-$(CONFIG_LSUSB) += lsusb.o //usage:#define lsusb_trivial_usage NOUSAGE_STR //usage:#define lsusb_full_usage "" #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; }