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.TH "CALL_USERMODEHELPER" "9" "07 August 2003" "" ""
.SH NAME
call_usermodehelper \- start a usermode application
.SH SYNOPSIS
.sp
\fB
.sp
int call_usermodehelper  (char * \fIpath\fB, char ** \fIargv\fB, char ** \fIenvp\fB, int \fIwait\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIpath\fB\fR
pathname for the application
.TP
\fB\fIargv\fB\fR
null-terminated argument list
.TP
\fB\fIenvp\fB\fR
null-terminated environment list
.TP
\fB\fIwait\fB\fR
wait for the application to finish and return status.
.SH "DESCRIPTION"
.PP
Runs a user-space application.  The application is started
asynchronously if wait is not set, and runs as a child of keventd.
(ie. it runs with full root capabilities).
.PP
Must be called from process context.  Returns a negative error code
if program was not execed successfully, or 0.
.SH "ABOUT THIS DOCUMENT"
.PP
This documentation is free software; you can redistribute
it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.
.PP
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
MA 02111-1307 USA
.PP
For more details see the file COPYING in the source
distribution of Linux.
.PP
If you have comments on the formatting of this manpage, then please contact
Michael Still (mikal@stillhq.com).
.PP
This documentation was generated with kernel version 2.6.0.