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create a document for mdev so people dont have to rtfs

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Mike Frysinger
2007-02-14 13:20:29 +00:00
parent b5368bf437
commit ae30210d90
2 changed files with 78 additions and 26 deletions
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36
util-linux/Config.in
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@@ -269,46 +269,30 @@ config MDEV
bool "mdev"
default n
help
mdev is a mini-udev implementation: call it with -s to populate
/dev from /sys, then "echo /sbin/mdev > /proc/sys/kernel/hotplug" to
have it handle hotplug events afterwards. Device names are taken
from sysfs.
mdev is a mini-udev implementation for dynamically creating device
nodes in the /dev directory.
For more information, please see docs/mdev.txt
config FEATURE_MDEV_CONF
bool "Support /etc/mdev.conf"
default n
depends on MDEV
help
The mdev config file contains lines that look like:
Add support for the mdev config file to control ownership and
permissions of the device nodes.
hd[a-z][0-9]* 0:3 660
That's device name (with regex match), uid:gid, and permissions.
Config file parsing stops on the first matching line. If no config
entry is matched, devices are created with default 0:0 660. (Make
the last line match .* to override this.)
For more information, please see docs/mdev.txt
config FEATURE_MDEV_EXEC
bool "Support command execution at device addition/removal"
default n
depends on FEATURE_MDEV_CONF
help
This adds support for an optional field to /etc/mdev.conf, consisting
of a special character and a command line to run after creating the
corresponding device(s) and before removing, ala:
This adds support for an optional field to /etc/mdev.conf for
executing commands when devices are created/removed.
hdc root:cdrom 660 *ln -s $MDEV cdrom
The $MDEV environment variable is set to the name of the device.
The special characters and their meanings are:
@ Run after creating the device.
$ Run before removing the device.
* Run both after creating and before removing the device.
Commands are executed via system() so you need /bin/sh, meaning you
probably want to select a default shell in the Shells menu.
For more information, please see docs/mdev.txt
config MKSWAP
bool "mkswap"