udev.rst
author Oleksandr Gavenko <gavenkoa@gmail.com>
Mon, 09 Oct 2017 10:49:36 +0300
changeset 2188 e95731eef030
parent 1964 2945703c8dbd
child 2228 837f1337c59b
permissions -rw-r--r--
Fixed: NameError: name 'locale_encoding' is not defined File /bin/rst2html.py, line 17, in <module> from docutils.core import publish_cmdline, default_description File /usr/lib/python2.7/site-packages/docutils/core.py, line 20, in <module> from docutils import frontend, io, utils, readers, writers File /usr/lib/python2.7/site-packages/docutils/frontend.py, line 41, in <module> import docutils.utils File /usr/lib/python2.7/site-packages/docutils/utils/__init__.py, line 20, in <module> import docutils.io File /usr/lib/python2.7/site-packages/docutils/io.py, line 18, in <module> from docutils.utils.error_reporting import locale_encoding, ErrorString, ErrorOutput File /usr/lib/python2.7/site-packages/docutils/utils/error_reporting.py, line 60, in <module> codecs.lookup(locale_encoding or '') # None -> '' NameError: name 'locale_encoding' is not defined

.. -*- coding: utf-8; -*-

=======
 udev.
=======
.. contents::
   :local:

About.
======

 * http://reactivated.net/writing_udev_rules.html
 * http://wiki.debian.org/udev
 * https://wiki.archlinux.org/index.php/Udev
 * http://wiki.gentoo.org/wiki/Udev
 * http://www.crashcourse.ca/wiki/index.php/Udev

Record udev events
==================

This dump udev events to console::

  $ sudo udevadm monitor

List available devices
======================
::

  $ udevadm info --export-db

View device capability with udev compatible format
==================================================

For Debian use::

  $ /sbin/udevadm info --name=/dev/sdc --attribute-walk
  $ udevadm info --attribute-walk --path $(udevadm info --query=path --name=/dev/ttyUSB0)

For other Linux use::

  $ udevinfo -a -p $(udevinfo -q path -n /dev/sdc)

Debugging udev rule.
====================
::

  $ sudo udevadm trigger
  $ sudo udevadm test $(udevadm info -n /dev/$DEV -q path)