Enable virtual/udev integration (device discovery, power and storage device support, etc)

Packages describing “udev” as local USE flag

Package“udev” Flag Description
app-backup/rearHave ReaR start backup when attaching your USB drive.
app-crypt/zulucryptWhether udev will be consulted when deciding if a volume is system or not
app-emulation/virtualboxControls installation of special USB udev rules.
app-emulation/virtualbox-kvmControls installation of special USB udev rules.
app-metrics/collectdEnable optional udev usage in disk plugin; Required for smart plugin
dev-libs/libcecEnable detection of USB-CEC port by udev
games-simulation/flightgearEnable event-based Input devices through virtual/udev
gnome-base/gvfsEnable udev base replacement code for cdda feature
media-tv/kodiUse udev rules to handle devices' permissions and hotplug support. Unless you know what you're doing do not disable this flag on Linux kernels. This is provided as an option for completeness.
sys-apps/pcsc-liteUse virtual/libudev rules to handle devices' permissions and hotplug support. Unless you know what you're doing do not disable this flag on Linux kernels. This is provided as an option for completeness.
sys-apps/systemd-utilsEnable systemd-udev (userspace device manager)
x11-misc/py3statusInstall extra requirement dev-python/pyudev to enable udev events monitoring on modules.

All packages providing a “udev” USE flag (42)