# udev.conf

## 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)).
    


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