.B udev
config file.
.TP
-.B UDEV_NO_SLEEP
-The default behavior of
-.B udev
-is to wait until all the sysfs files of the device chain are populated. If set,
-.B udev
-will continue, regardless of the state of the device representation.
-.TP
.B UDEV_NO_DEVD
The default behavior of
.B udev
.TP
.B udev_db
The name and location of the udev database. The default value is
-.IR @udevdir@/.udev.tdb .
+.IR @udevdir@/.udevdb .
.TP
.B udev_rules
The name of the udev rules file or directory to look for files with the suffix
udev_root="/udev"
# udev_db - The name and location of the udev database
-udev_db="/udev/.udev.tdb"
+udev_db="/udev/.udevdb"
# udev_rules - The name of the udev rules file or directory to look
for files with the suffix .rules
.BI %s{ filename }
The content of a sysfs attribute.
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+.B %e
+If a device node already exists with the name, the smallest positive
+decimal integer N is substituted such that the resulting name doesn't
+match an existing device node. Otherwise nothing is substituted. This
+can be used to create compatibility symlinks and enumerate devices of
+the same type originating from different kernel subsystems.
+.TP
.B %%
The '%' character itself.
.P
# multiple USB webcams with symlinks to be called webcam0, webcam1, ...
BUS="usb", SYSFS{model}="XV3", NAME="video%n", SYMLINK="webcam%n"
+
+# grouping of optical drives from multiple kernel subsystems
+KERNEL="sr*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL="scd*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL="pcd*", NAME="%k", SYMLINK="cdrom%e"
+KERNEL="hd[a-z]", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom",
+ NAME="%k", SYMLINK="cdrom%e"
+
.fi
.P
The permissions and ownership of the created device file is read from
dsp1:::0666
.fi
.P
-The value
-.I $local
-can be used instead of a specific username. In that case, udev will determine
-the current local user at the time of device node creation and substitute
-that username as the owner of the new device node. This is useful, for
-example, to let hot-plugged devices, such as cameras, be owned by the user at
-the current console. Note that if no user is currently logged in, or if udev
-otherwise fails to determine a current user, the
-.I default_owner
-value is used in lieu.
-.P
A number of different fields in the above configuration files support a simple
form of shell style pattern matching. It supports the following pattern characters:
.TP