Root/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
6menu "Linux Module Utilities"
7
8config 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
41config 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
48config 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
55config 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
62config 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
69config 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
76config 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
85config 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
93config 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
104config 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
113comment "Options common to multiple modutils"
114
115config 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
124config 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
132config 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
143config 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
153config 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
164config 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
173config 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
183config 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
199config 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
210config 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
218config 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
226endmenu
227

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