kldunload, kldunloadf — unload kld files

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.

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.

The kld interface first appeared in FreeBSD 3.0. Debian December 25, 2008 KLDUNLOAD(2)

Standard C Library (libc, -lc)

kldunload, kldunloadf — unload kld files

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.

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

#include<sys/param.h>#include<sys/linker.h>intkldunload(intfileid); intkldunloadf(intfileid, intflags);