udev and hotplug

[Andreas Jellinghaus <aj@dungeon.inka.de>]

as far as I know the current recommendation is to
disable /proc/sys/kernel/hotplug and let udevd
handle everything via user space events. right?

and is the hotplug package still needed, required, used?
or does udev and hotplug even conflict?

here are some sources that might need an update:

udev README:
  - From kernel version 2.6.15 on, the hotplug helper /sbin/hotplug should
    be disabled with an init script before actions like loading kernel
    modules are taken, which may cause a lot of events.

http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html

Requirements
 It requires a 2.6 Linux kernel with CONFIG_HOTPLUG enabled to run. It is
  recommended that you also have the Linux Hotplug scripts installed, but it
  is not necessary for it to work properly.

http://www.gentoo.org/doc/en/udev-guide.xml
  udev
  Every time the kernel notices an update in the device structure, it calls 
  the /sbin/hotplug program. Hotplug runs the applications linked in the
  /etc/hotplug.d/default directory where you will also find a symlink to the
  udev application. Hotplug directs the information given by the kernel to
   the udev application which performs the necessary actions on the /dev
   structure (creating or deleting device files).

http://fedora.redhat.com/docs/udev/
  udev gets called by hotplug, if a module is loaded, and a device is added
  or removed. udev looks in /sys/, if the driver provides a "dev" file,
  which contains the major and minor number for a device node to communicate
  with the driver. After looking in the udev rules (in
  the /etc/udev/rules.d/ directory), which specify the device node filename
   and symlinks, a device node is created in /dev/ with the permissions,
   which are specified in /etc/udev/permissions.d/.

I use none of those distributions, but maybe these people are on the list?

Regards, Andreas



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