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Diffstat (limited to 'lib/libutil/kld.3')
-rw-r--r-- | lib/libutil/kld.3 | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/libutil/kld.3 b/lib/libutil/kld.3 new file mode 100644 index 0000000..6b77c47 --- /dev/null +++ b/lib/libutil/kld.3 @@ -0,0 +1,93 @@ +.\"- +.\" Copyright (c) 2006 Dag-Erling Coïdan Smørgrav +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd February 18, 2006 +.Dt KLD 3 +.Os +.Sh NAME +.Nm kld_isloaded , +.Nm kld_load +.Nd kld utility functions +.Sh LIBRARY +.Lb libutil +.Sh SYNOPSIS +.In libutil.h +.Ft int +.Fn kld_isloaded "const char *name" +.Ft int +.Fn kld_load "const char *name" +.Sh DESCRIPTION +These functions facilitate loading kernel modules from userland +applications. +.Pp +The +.Fn kld_isloaded +function takes a name and returns a non-zero value if a module of that +name is currently loaded. +The name can be either the name of a module file +.Pq Pa cpufreq.ko , +the same name without the +.Pa .ko +extension +.Pq Pa cpufreq , +or the name of a module contained within that file +.Pq Pa cpu/ichss . +Only the latter will return correct results if the module is compiled +into the kernel. +.Pp +The +.Fn kld_load +function is a simple wrapper around the +.Xr kldload 2 +function. +It returns zero if and only if the corresponding +.Fn kldload +call succeeded or returned +.Er EEXIST +(signifying that the requested module was already loaded). +.Sh SEE ALSO +.Xr kldfirstmod 2 , +.Xr kldload 2 , +.Xr kldnext 2 , +.Xr kldstat 2 , +.Xr modfnext 2 , +.Xr modstat 2 , +.Xr kld 4 +.Sh HISTORY +The +.Fn kld_isloaded +and +.Fn kld_load +functions first appeared in +.Fx 6.3 . +.Sh AUTHORS +The +.Fn kld_isloaded +and +.Fn kld_load +functions and this manual page were written by +.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org . |