/* vi: set sw=4 ts=4: */ /* * lspci 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 LSPCI //config: bool "lspci (5.7 kb)" //config: default y //config: #select PLATFORM_LINUX //config: help //config: lspci is a utility for displaying information about PCI buses in the //config: system and devices connected to them. //config: //config: This version uses sysfs (/sys/bus/pci/devices) only. //applet:IF_LSPCI(APPLET_NOEXEC(lspci, lspci, BB_DIR_USR_BIN, BB_SUID_DROP, lspci)) //kbuild:lib-$(CONFIG_LSPCI) += lspci.o //usage:#define lspci_trivial_usage //usage: "[-mk]" //usage:#define lspci_full_usage "\n\n" //usage: "List all PCI devices" //usage: "\n" //usage: "\n -m Parsable output" //usage: "\n -k Show driver" #include "libbb.h" enum { OPT_m = (1 << 0), OPT_k = (1 << 1), }; /* * PCI_SLOT_NAME PCI_CLASS: PCI_VID:PCI_DID [PCI_SUBSYS_VID:PCI_SUBSYS_DID] [DRIVER] */ 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[3]; char *pci_slot_name = NULL, *driver = NULL; int pci_class = 0, pci_vid = 0, pci_did = 0; int pci_subsys_vid = 0, pci_subsys_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, 3, 2, "\0:=", PARSE_NORMAL)) { if (strcmp(tokens[0], "DRIVER") == 0) { driver = xstrdup(tokens[1]); continue; } if (strcmp(tokens[0], "PCI_CLASS") == 0) { pci_class = xstrtou(tokens[1], 16)>>8; continue; } if (strcmp(tokens[0], "PCI_ID") == 0) { pci_vid = xstrtou(tokens[1], 16); pci_did = xstrtou(tokens[2], 16); continue; } if (strcmp(tokens[0], "PCI_SUBSYS_ID") == 0) { pci_subsys_vid = xstrtou(tokens[1], 16); pci_subsys_did = xstrtou(tokens[2], 16); continue; } if (strcmp(tokens[0], "PCI_SLOT_NAME") == 0) { pci_slot_name = xstrdup(tokens[2]); continue; } } config_close(parser); if (option_mask32 & OPT_m) { printf("%s \"Class %04x\" \"%04x\" \"%04x\" \"%04x\" \"%04x\"", pci_slot_name, pci_class, pci_vid, pci_did, pci_subsys_vid, pci_subsys_did); } else { printf("%s Class %04x: %04x:%04x", pci_slot_name, pci_class, pci_vid, pci_did); } if ((option_mask32 & OPT_k) && driver) { if (option_mask32 & OPT_m) { printf(" \"%s\"", driver); } else { printf(" %s", driver); } } bb_putchar('\n'); free(driver); free(pci_slot_name); return TRUE; } int lspci_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int lspci_main(int argc UNUSED_PARAM, char **argv) { getopt32(argv, "m" /*non-compat:*/ "k" /*ignored:*/ "nv"); recursive_action("/sys/bus/pci/devices", ACTION_RECURSE, fileAction, NULL, /* dirAction */ NULL, /* userData */ 0 /* depth */); return EXIT_SUCCESS; }