package/busybox/config/modutils/Config.in

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see scripts/kbuild/config-language.txt.
   4 #
   5
   6 menu "Linux Module Utilities"
   7
   8 config BUSYBOX_CONFIG_DEFAULT_MODULES_DIR
   9         string "Default directory containing modules"
  10         default "/lib/modules"
  11         help
  12           Directory that contains kernel modules.
  13           Defaults to "/lib/modules"
  14
  15 config BUSYBOX_CONFIG_DEFAULT_DEPMOD_FILE
  16         string "Default name of modules.dep"
  17         default "modules.dep"
  18         help
  19           Filename that contains kernel modules dependencies.
  20           Defaults to "modules.dep"
  21
  22 config BUSYBOX_CONFIG_MODPROBE_SMALL
  23         bool "Simplified modutils"
  24         default n
  25         help
  26           Simplified modutils.
  27
  28           With this option modprobe does not require modules.dep file
  29           and does not use /etc/modules.conf file.
  30           It scans module files in /lib/modules/`uname -r` and
  31           determines dependencies and module alias names on the fly.
  32           This may make module loading slower, most notably
  33           when one needs to load module by alias (this requires
  34           scanning through module _bodies_).
  35
  36           At the first attempt to load a module by alias modprobe
  37           will try to generate modules.dep.bb file in order to speed up
  38           future loads by alias. Failure to do so (read-only /lib/modules,
  39           etc) is not reported, and future modprobes will be slow too.
  40
  41           NB: modules.dep.bb file format is not compatible
  42           with modules.dep file as created/used by standard module tools.
  43
  44           Additional module parameters can be stored in
  45           /etc/modules/$module_name files.
  46
  47           Apart from modprobe, other utilities are also provided:
  48           - insmod is an alias to modprobe
  49           - rmmod is an alias to modprobe -r
  50           - depmod generates modules.dep.bb
  51
  52           As of 2008-07, this code is experimental. It is 14kb smaller
  53           than "non-small" modutils.
  54
  55 config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
  56         bool "Accept module options on modprobe command line"
  57         default n
  58         depends on BUSYBOX_CONFIG_MODPROBE_SMALL
  59         help
  60           Allow insmod and modprobe take module options from command line.
  61           N.B. Very bloaty.
  62
  63 config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
  64         bool "Skip loading of already loaded modules"
  65         default n
  66         depends on BUSYBOX_CONFIG_MODPROBE_SMALL
  67         help
  68           Check if the module is already loaded.
  69           N.B. It's racy.
  70
  71 config BUSYBOX_CONFIG_INSMOD
  72         bool "insmod"
  73         default y
  74         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
  75         help
  76           insmod is used to load specified modules in the running kernel.
  77
  78 config BUSYBOX_CONFIG_RMMOD
  79         bool "rmmod"
  80         default y
  81         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
  82         help
  83           rmmod is used to unload specified modules from the kernel.
  84
  85 config BUSYBOX_CONFIG_LSMOD
  86         bool "lsmod"
  87         default y
  88         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
  89         help
  90           lsmod is used to display a list of loaded modules.
  91
  92 config BUSYBOX_CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
  93         bool "Pretty output"
  94         default y
  95         depends on BUSYBOX_CONFIG_LSMOD
  96         help
  97           This option makes output format of lsmod adjusted to
  98           the format of module-init-tools for Linux kernel 2.6.
  99           Increases size somewhat.
 100
 101 config BUSYBOX_CONFIG_MODPROBE
 102         bool "modprobe"
 103         default n
 104         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
 105         help
 106           Handle the loading of modules, and their dependencies on a high
 107           level.
 108
 109           Note that in the state, modprobe does not understand multiple
 110           module options from the configuration file. See option below.
 111
 112 config BUSYBOX_CONFIG_FEATURE_MODPROBE_BLACKLIST
 113         bool
 114         prompt "Blacklist support"
 115         default n
 116         depends on BUSYBOX_CONFIG_MODPROBE
 117         help
 118           Say 'y' here to enable support for the 'blacklist' command in
 119           modprobe.conf. This prevents the alias resolver to resolve
 120           blacklisted modules. This is useful if you want to prevent your
 121           hardware autodetection scripts to load modules like evdev, frame
 122           buffer drivers etc.
 123
 124 config BUSYBOX_CONFIG_DEPMOD
 125         bool "depmod"
 126         default n
 127         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
 128         help
 129           depmod generates modules.dep (and potentially modules.alias
 130           and modules.symbols) that contain dependency information
 131           for modprobe.
 132
 133 comment "Options common to multiple modutils"
 134
 135 config BUSYBOX_CONFIG_FEATURE_2_4_MODULES
 136         bool "Support version 2.2/2.4 Linux kernels"
 137         default n
 138         depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_LSMOD
 139         help
 140           Support module loading for 2.2.x and 2.4.x Linux kernels.
 141           This increases size considerably. Say N unless you plan
 142           to run ancient kernels.
 143
 144 config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
 145         bool "Enable module version checking"
 146         default n
 147         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 148         help
 149           Support checking of versions for modules. This is used to
 150           ensure that the kernel and module are made for each other.
 151
 152 config BUSYBOX_CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
 153         bool "Add module symbols to kernel symbol table"
 154         default n
 155         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 156         help
 157           By adding module symbols to the kernel symbol table, Oops messages
 158           occuring within kernel modules can be properly debugged. By enabling
 159           this feature, module symbols will always be added to the kernel symbol
 160           table for properly debugging support. If you are not interested in
 161           Oops messages from kernel modules, say N.
 162
 163 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOADINKMEM
 164         bool "In kernel memory optimization (uClinux only)"
 165         default n
 166         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 167         help
 168           This is a special uClinux only memory optimization that lets insmod
 169           load the specified kernel module directly into kernel space, reducing
 170           memory usage by preventing the need for two copies of the module
 171           being loaded into memory.
 172
 173 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP
 174         bool "Enable insmod load map (-m) option"
 175         default n
 176         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && BUSYBOX_CONFIG_INSMOD
 177         help
 178           Enabling this, one would be able to get a load map
 179           output on stdout. This makes kernel module debugging
 180           easier.
 181           If you don't plan to debug kernel modules, you
 182           don't need this option.
 183
 184 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL
 185         bool "Symbols in load map"
 186         default n
 187         depends on BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP && !BUSYBOX_CONFIG_MODPROBE_SMALL
 188         help
 189           Without this option, -m will only output section
 190           load map. With this option, -m will also output
 191           symbols load map.
 192
 193 config BUSYBOX_CONFIG_FEATURE_CHECK_TAINTED_MODULE
 194         bool "Support tainted module checking with new kernels"
 195         default y
 196         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
 197         help
 198           Support checking for tainted modules. These are usually binary
 199           only modules that will make the linux-kernel list ignore your
 200           support request.
 201           This option is required to support GPLONLY modules.
 202
 203 config BUSYBOX_CONFIG_FEATURE_MODUTILS_ALIAS
 204         bool "Support for module.aliases file"
 205         default n
 206         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
 207         help
 208           Generate and parse modules.alias containing aliases for bus
 209           identifiers:
 210             alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
 211
 212           and aliases for logical modules names e.g.:
 213             alias padlock_aes aes
 214             alias aes_i586 aes
 215             alias aes_generic aes
 216
 217           Say Y if unsure.
 218
 219 config BUSYBOX_CONFIG_FEATURE_MODUTILS_SYMBOLS
 220         bool "Support for module.symbols file"
 221         default n
 222         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
 223         help
 224           Generate and parse modules.symbols containing aliases for
 225           symbol_request() kernel calls, such as:
 226             alias symbol:usb_sg_init usbcore
 227
 228           Say Y if unsure.
 229
 230 endmenu