devmap_name - Query device-mapper name
devmap_name major minor
devmap_name queries the device-mapper for the name for the device specified by major and minor number. devmap_name can be called from udev by the following rule in /etc/udev/udev.rules: KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", \ NAME="%k", SYMLINK="%c"
devmap_name was developed by Christophe Varoqui, <firstname.lastname@example.org> and others. July 2006