.TH "call_usermodehelper" 9 "call_usermodehelper" "25 May 1998" "Kernel Hacker's Manual" LINUX
.SH NAME
call_usermodehelper \-  start a usermode application
.SH SYNOPSIS
.B "int" call_usermodehelper
.BI "(char *" path ","
.BI "char **" argv ","
.BI "char **" envp ");"
.SH ARGUMENTS
.IP "path" 12
 pathname for the application
.IP "argv" 12
 null-terminated argument list
.IP "envp" 12
 null-terminated environment list
.SH "DESCRIPTION"
Runs a user-space application.  The application is started asynchronously.  It
runs as a child of keventd.  It runs with full root capabilities.  keventd silently
reaps the child when it exits.

Must be called from process context.  Returns zero on success, else a negative
error code.