major & minor number Post: 53629

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Device Major/Minor numbers

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#include <sys/types.h> #include <sys/stat.h> #include <sys/termios.h> #include <stdio.h> #include <stdlib.h> #include <stddef.h> #include <string.h> #include <unistd.h> #include <signal.h> #include <sys/mkdev.h> int main(int argc, char *argv) { int i; struct stat buf; ...

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mknod

mknod(1M)						  System Administration Commands						 mknod(1M)

NAME

       mknod - make a special file

SYNOPSIS

       mknod name b major minor

       mknod name c major minor

       mknod name p

DESCRIPTION

       mknod makes a directory entry for a special file.

OPTIONS

       The following options are supported:

       b    Create a block-type special file.

       c    Create a character-type special file.

       p    Create a FIFO (named pipe).

OPERANDS

       The following operands are supported:

       major	The major device number.

       minor	The  minor  device  number; can be either decimal or octal. The assignment of major device numbers is specific to each system. You
		must be the super-user to use this form of the command.

       name	A special file to be created.

USAGE

       See largefile(5) for the description of the behavior of mknod when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ftp(1), in.ftpd(1M), mknod(2), symlink(2), attributes(5), largefile(5)

NOTES

       If mknod(2) is used to create a device, the major and minor device numbers are always interpreted by the kernel running on that machine.

       With the advent of physical device naming, it would be preferable to create a symbolic link to the physical name  of  the  device  (in  the
       /devices subtree) rather than using mknod.

SunOS 5.11							    16 Sep 1996 							 mknod(1M)