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