.B udev
config file.
.TP
-.B UDEV_NO_SLEEP
-The default behavior of
-.B udev
-is to wait until all the sysfs files of the device chain are populated. If set,
-.B udev
-will continue, regardless of the state of the device representation.
-.TP
.B UDEV_NO_DEVD
The default behavior of
.B udev