This directory contains a copy of the installed kernel headers required by several drivers to communicate with the kernel. Whenever one of those driver needs new definitions for new kernel APIs, these files should be updated. These files in master should only be updated once the changes have landed in the drm-next tree. 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 2e1492835e439fceba57a5b0f9b17da8e78ffa3d Merge: 85d712f033d2 43049f17b526 Author: Dave Airlie Date: Fri Jun 2 13:38:48 2023 +1000 Merge tag 'drm-misc-next-2023-06-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next