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makedev.local(8) [netbsd man page]

MAKEDEV.LOCAL(8)					    BSD System Manager's Manual 					  MAKEDEV.LOCAL(8)

MAKEDEV.local -- create site-specific device special files SYNOPSIS
MAKEDEV.local [-fMsu] [-m mknod] [-p pax] [-t mtree] {all | site-specific-argument} [...] DESCRIPTION
MAKEDEV.local is used to create site-specific device special files. Each argument may be the word all or a site-specific argument. By default, there are no valid site-specific arguments, and the all argument has no effect; This may be changed by editing the script. The script is in /dev/MAKEDEV.local. Devices are created in the current working directory; in normal use, MAKEDEV.local should be invoked with /dev as the current working directory. Supported options for MAKEDEV.local are the same as for MAKEDEV(8). FILES
/dev special device files directory /dev/MAKEDEV script that invokes MAKEDEV.local with the all argument. /dev/MAKEDEV.local script described in this man page SEE ALSO
config(1), intro(4), MAKEDEV(8), mknod(8) HISTORY
The MAKEDEV.local command appeared in 4.2BSD. Handling of the same command line options as MAKEDEV(8), and the use of MAKEDEV(8) as a func- tion library, was added in NetBSD 5.0. NOTES
The relationship between MAKEDEV.local and MAKEDEV(8) is complex: o If MAKEDEV(8) is invoked with the all or local argument, then it will invoke MAKEDEV.local as a child process, with options similar to those that were originally passed to MAKEDEV(8), and with the all argument. o MAKEDEV.local uses shell functions defined in MAKEDEV(8). This is done by loading MAKEDEV(8) using the shell ``.'' command, with the MAKEDEV_AS_LIBRARY variable set (to inform MAKEDEV(8) that it should behave as a function library, not as an independent program). BSD
August 6, 2011 BSD

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MAKEDEV(3)                                                   Linux Programmer's Manual                                                  MAKEDEV(3)

makedev, major, minor - manage a device number SYNOPSIS
#include <sys/sysmacros.h> dev_t makedev(unsigned int maj, unsigned int min); unsigned int major(dev_t dev); unsigned int minor(dev_t dev); DESCRIPTION
A device ID consists of two parts: a major ID, identifying the class of the device, and a minor ID, identifying a specific instance of a device in that class. A device ID is represented using the type dev_t. Given major and minor device IDs, makedev() combines these to produce a device ID, returned as the function result. This device ID can be given to mknod(2), for example. The major() and minor() functions perform the converse task: given a device ID, they return, respectively, the major and minor components. These macros can be useful to, for example, decompose the device IDs in the structure returned by stat(2). ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------------------------+---------------+---------+ |Interface | Attribute | Value | +----------------------------+---------------+---------+ |makedev(), major(), minor() | Thread safety | MT-Safe | +----------------------------+---------------+---------+ CONFORMING TO
The makedev(), major(), and minor() functions are not specified in POSIX.1, but are present on many other systems. NOTES
These interfaces are defined as macros. Since glibc 2.3.3, they have been aliases for three GNU-specific functions: gnu_dev_makedev(), gnu_dev_major(), and gnu_dev_minor(). The latter names are exported, but the traditional names are more portable. The BSDs expose the definitions for these macros via <sys/types.h>. glibc also exposes definitions for these macros from that header file if suitable feature test macros are defined, but this is deprecated since glibc 2.25 and will be removed in the future. SEE ALSO
mknod(2), stat(2) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at Linux 2017-09-15 MAKEDEV(3)
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