This directory contains a copy of the installed kernel headers required by the anv & i965 drivers to communicate with the kernel. Whenever either of those driver needs new definitions for new kernel APIs, these files should be updated. You can copy files installed after running this from the kernel repository, at version the drivers require : $ make headers_install INSTALL_HDR_PATH=/path/to/install The last update was done at the following kernel commit : commit 6d61e70ccc21606ffb8a0a03bd3aba24f659502b Merge: 338ffbf7cb5e c0bc126f97fb Author: Dave Airlie Date: Tue Jun 27 07:24:49 2017 +1000 Backmerge tag 'v4.12-rc7' into drm-next