NAME

       kldunload, kldunloadf — unload kld files

LIBRARY

       Standard C Library (libc, -lc)

SYNOPSIS

       #include <sys/param.h>
       #include <sys/linker.h>

       int
       kldunload(int fileid);

       int
       kldunloadf(int fileid, int flags);

DESCRIPTION

       The kldunload() system call unloads a kld file from the kernel that was previously linked via kldload(2).

       The   kldunloadf()   system   call   accepts   an   additional  flags  argument,  which  may  be  one  of
       LINKER_UNLOAD_NORMAL, giving the same behavior as kldunload(), or LINKER_UNLOAD_FORCE, which  causes  the
       unload to ignore a failure to quiesce the module.

RETURN VALUES

       Upon  successful  completion,  the value 0 is returned; otherwise the value -1 is returned and the global
       variable errno is set to indicate the error.

ERRORS

       The file referred to by fileid is unloaded unless:

       [EPERM]            You do not have access to unlink the file from the kernel.

       [ENOENT]           The file was not found.

       [EBUSY]            You attempted to unload a file linked by the kernel.

       [EINVAL]           The kldunloadf() system call was passed invalid flags.

SEE ALSO

       kldfind(2), kldfirstmod(2),  kldload(2),  kldnext(2),  kldstat(2),  kldsym(2),  modfind(2),  modfnext(2),
       modnext(2), modstat(2), kld(4), kldunload(8)

HISTORY

       The kld interface first appeared in FreeBSD 3.0.

Debian                                          December 25, 2008                                   KLDUNLOAD(2)