eudev@gentoo.org enable libudev gobject interface read vendor/device string database and add it to udev database Use dev-libs/gobject-introspection for introspection map custom hardware's multimedia keys enable module loading through libkmod (requires modules) enable module loading support install the OpenRC init scripts install legacy rule generator rules and support scripts - note that the functionality within was dropped from sys-fs/udev as it is not stable in all cases; use at your own risk install libudev.so.0 to help with migration from udev-179 or older