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KLDUNLOAD(2)		  FreeBSD System Calls Manual		  KLDUNLOAD(2)

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
     kldunload(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.

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.

FreeBSD	11.1			March 10, 2008			  FreeBSD 11.1
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY

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