NAME
devfs.rules —
devfs configuration
information
DESCRIPTION
Thedevfs.rules file provides an easy way to create and
apply devfs(8) rules, even for devices that are not available at boot.
For devices available at boot, see devfs.conf(5).
The format of this file is simple. Empty lines and lines beginning
with a hash sign (‘#’) are ignored. A
line between brackets denotes the start of a ruleset. In the brackets should
be the name of the ruleset and its number, separated by an equal sign.
Other lines are rule specifications as documented in
devfs(8), in the section
Rule Specification. These lines
are prepended with “rule” and are
passed to devfs(8) by the startup scripts of the system. It is
important to put path elements that contain
glob(3) special characters between quotes.
Rulesets should have a unique name and number.
All rules that follow a ruleset declaration belong to that ruleset, until a new ruleset is started.
One custom ruleset has to be enabled in
/etc/rc.conf, otherwise it will not be applied to
the /dev file system by the default system startup
process. For example, to enable a
“localrules” ruleset for the
/dev file system, you would have to use something
like this in your rc.conf file:
devfs_system_ruleset="localrules"
FILES
- /etc/defaults/devfs.rules
- Default
devfs.rulesconfiguration file. - /etc/devfs.rules
- Local
devfs.rulesconfiguration file. Rulesets in here override those in /etc/defaults/devfs.rules with the same ruleset number, otherwise the two files are effectively merged.
EXAMPLES
To make all the partitions of
da(4)
devices readable and writable by their owner and the
“usb” group, the following rule may be
used:
[localrules=10]add path 'da*s*' mode 0660 group
usbThe first line declares and starts a new ruleset, with the name localrules and the number 10.
To give
usbconfig(8) and
libusb(3) enabled applications permission to all usb devices for
their owner and the “usb” group, a
similar rule may be used:
add path 'usb/*' mode 0660 group
usbSEE ALSO
AUTHORS
This manual page was written by Roland Smith <rsmith@xs4all.nl>.