udev (5) - Linux Man Pages
udev: Configuration for device event managing daemon
udev.conf - Configuration for device event managing daemon
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:
- The logging priority. Valid values are the numerical syslog priorities or their textual representations: err, info and debug.
In addition, systemd-udevd can be configured by command-line options and the kernel commandline (see systemd-udevd(8)).