UDEV.CONF(5) udev.conf UDEV.CONF(5)
NAME
udev.conf, udev.conf.d - Configuration for device event managing daemon
SYNOPSIS
/etc/udev/udev.conf
/run/udev/udev.conf
/usr/local/lib/udev/udev.conf
/usr/lib/udev/udev.conf
/etc/udev/udev.conf.d/*.conf
/run/udev/udev.conf.d/*.conf
/usr/local/lib/udev/udev.conf.d/*.conf
/usr/lib/udev/udev.conf.d/*.conf
DESCRIPTION
These files contain configuration options for systemd-udevd(8). The
syntax of these files is very simple: a list of assignments, one per
line. All empty lines or lines beginning with "#" are ignored.
The following options can be set:
udev_log=
The log level. Valid values are the numerical syslog priorities or
their textual representations: err, info and debug.
Note
This option is also honored by udevadm(8).
Added in version 216.
children_max=
An integer. The maximum number of events executed in parallel. When
unspecified or 0 is specified, the maximum is determined based on
the system resources.
This is the same as the --children-max= option.
Added in version 240.
exec_delay=
An integer. Delay the execution of each RUN{program} 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.
This is the same as the --exec-delay= option.
Added in version 240.
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.
Added in version 240.
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.
Added in version 240.
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.
Added in version 246.
In addition, systemd-udevd can be configured by command line options and
the kernel command line (see systemd-udevd(8)).
SEE ALSO
systemd-udevd(8), udev(7), udevadm(8)
systemd 257.9 UDEV.CONF(5)
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