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KLDLOAD(2)		       System Calls Manual		      KLDLOAD(2)

NAME
     kldload -- load KLD files into the kernel

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/linker.h>

     int
     kldload(const char *file);

DESCRIPTION
     The  kldload() system call loads a kld file specified by file into the ker-
     nel using the kernel linker (see kld(4)).	The file can be specified  as  a
     full  or  relative path, or otherwise is searched within the module path as
     defined by the loader tunable and sysctl  variable  kern.module_path.   The
     .ko extension for file is not mandatory.

RETURN VALUES
     The  kldload()  system  call  returns  the fileid of the kld file which was
     loaded into the kernel.  If an error occurs, kldload() will return  -1  and
     set errno to indicate the error.

ERRORS
     The named file is loaded unless:

     [EPERM]		You  do not have access to read the file or link it with
			the kernel.  You should be the root user to be	able  to
			use the kld system calls.

     [EFAULT]		Bad  address  encountered  when adding kld info into the
			kernel space.

     [ENOMEM]		There is no memory to load the file into the kernel.

     [ENOENT]		The file was not found.

     [ENOEXEC]		The file format of file was unrecognized.

     [EEXIST]		The supplied file has already been loaded.

SEE ALSO
     kldfind(2),  kldfirstmod(2),  kldnext(2),	kldstat(2),  kldsym(2),   kldun-
     load(2),  modfind(2),  modfnext(2),  modnext(2),  modstat(2),  kld(4), kld-
     load(8)

HISTORY
     The kld interface first appeared in FreeBSD 3.0.

FreeBSD ports 15.quarterly	 March 26, 2026 		      KLDLOAD(2)

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<https://man.freebsd.org/cgi/man.cgi?query=kldload&sektion=2&manpath=FreeBSD+15.1-RELEASE+and+Ports.quarterly>

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