From Linux Man Pages
depmod.conf, depmod.d - Configuration file/directory for depmod
DESCRIPTION
The order in which modules are processed by the depmod command can be altered on a global or per-module basis.
This is typically useful in cases where built-in kernel modules are complemented by custom built versions of the
same and the user wishes to affect the priority of processing in order to override the module version supplied by
the kernel.
The format of depmod.conf and files under depmod.d is simple: one command per line, with blank lines and lines
starting with # ignored (useful for adding comments). A \ at the end of a line causes it to continue on the next
line, which makes the file a bit neater.
COMMANDS
search subdirectory...
This allows you to specify the order in which /lib/modules (or other configured module location) subdirec-
tories will be processed by depmod. Directories are listed in order, with the highest priority given to
the first listed directory and the lowest to the last. The special keyword built-in refers to the standard
module directories installed by the kernel.
By default, depmod will give a higher priority to a directory with the name updates using this built-in
search string: "updates built-in" but more complex arrangements are possible and are used in several popu-
lar distributions.
override modulename kernelversion modulesubdirectory
This command allows you to override which version of a specific module will be used when more than one
module sharing the same name is processed by the depmod command. It is possible to specify one kernel or
all kernels using the * wildcard. modulesubdirectory is the name of the subdirectory under /lib/modules
(or other module location) where the target module is installed.
For example, it is possible to override the priority of an updated test module called kmp by specifying
the following command: "override kmp * extra". This will ensure that any matching module name installed
under the extra subdirectory within /lib/modules (or other module location) will take priority over any
likenamed module already provided by the kernel.
include filename
Using this command, you can include other configuration files, or whole directories, which is occasionally
useful.
COPYRIGHT
This manual page Copyright 2006, Jon Masters, Red Hat, Inc.
CATEGORY