rmmod(8) -- Linux man page
NAMErmmod --- simple program to remove a module from the Linux Kernel
rmmod is a trivial program to remove a
module from the kernel. Most users will want to use
modprobe(8) instead, with the -r option.
- -v --verbose
Print messages about what the program is doing.
Usually rmmod only prints messages
if something goes wrong.
- -f --force
This option can be extremely dangerous: it has no effect unless
CONFIG_MODULE_FORCE_UNLOAD was set when the kernel was
compiled. With this option, you can remove modules which are
being used, or which are not designed to be removed, or have
been marked as unsafe (see lsmod(8)).
- -w --wait
Normally, rmmod will refuse to
unload modules which are in use. With this option,
rmmod will isolate the module, and
wait until the module is no longer used. Noone new
will be able to use the module, but it's up to you to
make sure the current users eventually finish with it.
See lsmod(8)) for information on usage counts.
- -s --syslog
Send errors to the syslog, instead of standard error.
- -V --version
Show version of program, and exit. See below for caveats
when run on older kernels.
This version of rmmod is for kernels
2.5.48 and above. If it detects a kernel
with support for old-style modules (for which much of the work
was done in userspace), it will attempt to run
rmmod.old in its place, so it is completely
transparent to the user.