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KLDUNLOAD(2)		      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
       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.

FreeBSD	13.2		       December	25, 2008		  KLDUNLOAD(2)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY

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