udev.conf — Configuration for device event managing daemon
/etc/udev/udev.conf
systemd-udevd(8)
expects its main configuration file at
/etc/udev/udev.conf. It consists of a set
of variables allowing the user to override default udev
values. All empty lines or lines beginning with '#' are
ignored. The following variables can be set:
udev_log=¶The log level. Valid values are the numerical
syslog priorities or their textual representations:
err, info and
debug.
children_max=¶An integer. The maximum number of events executed in parallel.
This is the same as the --children-max= option.
exec_delay=¶An integer. Delay the execution of each RUN{
parameter by the given number of seconds. This option
might be useful when debugging system crashes during
coldplug caused by loading non-working kernel
modules.program}
This is the same as the --exec-delay= option.
event_timeout=¶An integer. The number of seconds to wait for events to finish. After this time, the event will be terminated. The default is 180 seconds.
This is the same as the --event-timeout= option.
resolve_names=¶Specifies when systemd-udevd should resolve names of users and groups. When set to
early (the default), names will be resolved when the rules are parsed.
When set to late, names will be resolved for every event. When set to
never, names will never be resolved and all devices will be owned by
root.
This is the same as the --resolve-names= option.
timeout_signal=¶Specifies a signal that systemd-udevd will send on worker
timeouts. Note that both workers and spawned processes will be killed using this
signal. Defaults to SIGKILL.
In addition, systemd-udevd can be configured
by command line options and the kernel command line (see
systemd-udevd(8)).