Hardware Database Files The hwdb files are read from the files located in the system hwdb directory /usr/lib/udev/hwdb.d and the user runtime directory /storage/.config/hwdb.d All hwdb files are collectively sorted and processed in lexical order, regardless of the directories in which they live. However, files with identical filenames replace each other. /usr/lib/udev/hwdb.d/* takes precedence over /storage/.config/hwdb.d/* your files must be named 99-xxxxx.hwdb