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<html><!-- This HTML file has been created by texi2html 1.29
from syscalls.texi on 4 June 1994 -->
<TITLE>Syscall specifications of Linux - mknod</TITLE>
<P>Go to the <A HREF="syscalls_20.html" tppabs="http://www.infran.ru/TechInfo/syscalls/syscalls_20.html">previous</A>, <A HREF="syscalls_22.html" tppabs="http://www.infran.ru/TechInfo/syscalls/syscalls_22.html">next</A> section.<P>
<H2><A NAME="SEC21" HREF="syscalls_toc.html#SEC21" tppabs="http://www.infran.ru/TechInfo/syscalls/syscalls_toc.html#SEC21">mknod</A></H2>
<P>
<H3>SYNOPSIS</H3>
<P>
<CODE>int mknod(const char *<VAR>path</VAR>, mode_t <VAR>mode</VAR>, dev_t <VAR>dev</VAR>);</CODE>
<P>
<H3>PARAMETERS</H3>
<P>
<VAR>path</VAR>: [in] points to the path of the new file.
<P>
<VAR>mode</VAR>: [in] specifies the kind of special file to create. (Do not
use it to specify the access bits of the file.)
<P>
<VAR>dev</VAR>: [in] the major and minor numbers of the new device.
<P>
<H3>DESCRIPTION</H3>
<P>
Creates a special device file node. Only tasks with superuser privileges
may use this call. The access bits of the new file are the same as those
of the <CODE>umask</CODE> of the current task. If <VAR>mode</VAR> does not specify
a special device file, then <VAR>dev</VAR> is ignored.
<P>
<H3>RETURN VALUE</H3>
<P>
On success zero is returned. On error, -1 is returned and <CODE>errno</CODE> is
set to one of the following values:
<P>
<UL>
<LI><CODE>EINVAL</CODE>: the path contains a caracter that is outside the
range [0,127].
<LI><CODE>EPERM</CODE>: the calling process does not have superuser privileges.
<LI><CODE>ENOTDIR</CODE>, <CODE>ENAMETOOLONG</CODE>, <CODE>ENOENT</CODE>,
<CODE>EACCESS</CODE>, <CODE>ELOOP</CODE>, <CODE>EIO</CODE>, <CODE>ENOSPC</CODE>, <CODE>EDQUOT</CODE>,
<CODE>EROFS</CODE>, <CODE>EEXIST</CODE> and <CODE>EFAULT</CODE>.
</UL>
<P>
<P>Go to the <A HREF="syscalls_20.html" tppabs="http://www.infran.ru/TechInfo/syscalls/syscalls_20.html">previous</A>, <A HREF="syscalls_22.html" tppabs="http://www.infran.ru/TechInfo/syscalls/syscalls_22.html">next</A> section.<P>