-The permissions and ownership of the created device file is read from
-the files located in the
-.I /etc/udev/permissions.d/
-directory, or at the location specified by the
-.I udev_permission
-value in the
-.I /etc/udev/udev.conf
-file.
-.br
-Every line lists a device name followed by owner, group and permission
-mode. All values are separated by colons. The name field may contain a
-pattern to apply the values to a whole class of devices.
-.sp
-.RI "A sample " udev.permissions " might look like this:"
-.sp
-.nf
-#name:user:group:mode
-input/*:root:root:644
-ttyUSB1:0:8:0660
-video*:root:video:0660
-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