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 config BUSYBOX_CONFIG_FEATURE_MODPROBE_BLACKLIST
  94         bool "Blacklist support"
  95         default n
  96         depends on BUSYBOX_CONFIG_MODPROBE
  97         help
  98           Say 'y' here to enable support for the 'blacklist' command in
  99           modprobe.conf. This prevents the alias resolver to resolve
 100           blacklisted modules. This is useful if you want to prevent your
 101           hardware autodetection scripts to load modules like evdev, frame
 102           buffer drivers etc.
 103
 104 config BUSYBOX_CONFIG_DEPMOD
 105         bool "depmod"
 106         default n
 107         depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
 108         help
 109           depmod generates modules.dep (and potentially modules.alias
 110           and modules.symbols) that contain dependency information
 111           for modprobe.
 112
 113 comment "Options common to multiple modutils"
 114
 115 config BUSYBOX_CONFIG_FEATURE_2_4_MODULES
 116         bool "Support version 2.2/2.4 Linux kernels"
 117         default n
 118         depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_LSMOD
 119         help
 120           Support module loading for 2.2.x and 2.4.x Linux kernels.
 121           This increases size considerably. Say N unless you plan
 122           to run ancient kernels.
 123
 124 config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
 125         bool "Enable module version checking"
 126         default n
 127         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 128         help
 129           Support checking of versions for modules. This is used to
 130           ensure that the kernel and module are made for each other.
 131
 132 config BUSYBOX_CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
 133         bool "Add module symbols to kernel symbol table"
 134         default n
 135         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 136         help
 137           By adding module symbols to the kernel symbol table, Oops messages
 138           occuring within kernel modules can be properly debugged. By enabling
 139           this feature, module symbols will always be added to the kernel symbol
 140           table for proper debugging support. If you are not interested in
 141           Oops messages from kernel modules, say N.
 142
 143 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOADINKMEM
 144         bool "In kernel memory optimization (uClinux only)"
 145         default n
 146         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
 147         help
 148           This is a special uClinux only memory optimization that lets insmod
 149           load the specified kernel module directly into kernel space, reducing
 150           memory usage by preventing the need for two copies of the module
 151           being loaded into memory.
 152
 153 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP
 154         bool "Enable insmod load map (-m) option"
 155         default n
 156         depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && BUSYBOX_CONFIG_INSMOD
 157         help
 158           Enabling this, one would be able to get a load map
 159           output on stdout. This makes kernel module debugging
 160           easier.
 161           If you don't plan to debug kernel modules, you
 162           don't need this option.
 163
 164 config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL
 165         bool "Symbols in load map"
 166         default n
 167         depends on BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP && !BUSYBOX_CONFIG_MODPROBE_SMALL
 168         help
 169           Without this option, -m will only output section
 170           load map. With this option, -m will also output
 171           symbols load map.
 172
 173 config BUSYBOX_CONFIG_FEATURE_CHECK_TAINTED_MODULE
 174         bool "Support tainted module checking with new kernels"
 175         default y
 176         depends on (BUSYBOX_CONFIG_LSMOD || BUSYBOX_CONFIG_FEATURE_2_4_MODULES) && !BUSYBOX_CONFIG_MODPROBE_SMALL
 177         help
 178           Support checking for tainted modules. These are usually binary
 179           only modules that will make the linux-kernel list ignore your
 180           support request.
 181           This option is required to support GPLONLY modules.
 182
 183 config BUSYBOX_CONFIG_FEATURE_MODUTILS_ALIAS
 184         bool "Support for module.aliases file"
 185         default n
 186         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
 187         help
 188           Generate and parse modules.alias containing aliases for bus
 189           identifiers:
 190             alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
 191
 192           and aliases for logical modules names e.g.:
 193             alias padlock_aes aes
 194             alias aes_i586 aes
 195             alias aes_generic aes
 196
 197           Say Y if unsure.
 198
 199 config BUSYBOX_CONFIG_FEATURE_MODUTILS_SYMBOLS
 200         bool "Support for module.symbols file"
 201         default n
 202         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
 203         help
 204           Generate and parse modules.symbols containing aliases for
 205           symbol_request() kernel calls, such as:
 206             alias symbol:usb_sg_init usbcore
 207
 208           Say Y if unsure.
 209
 210 config BUSYBOX_CONFIG_DEFAULT_MODULES_DIR
 211         string "Default directory containing modules"
 212         default "/lib/modules"
 213         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL
 214         help
 215           Directory that contains kernel modules.
 216           Defaults to "/lib/modules"
 217
 218 config BUSYBOX_CONFIG_DEFAULT_DEPMOD_FILE
 219         string "Default name of modules.dep"
 220         default "modules.dep"
 221         depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL
 222         help
 223           Filename that contains kernel modules dependencies.
 224           Defaults to "modules.dep"
 225
 226 endmenu