This lets an application open a suitable DRM device and pass the file
descriptor to the mode setting driver through an X server command line
option, '-masterfd'.
There's a companion application, xlease, which creates a DRM master by
leasing an output from another X server. That is available at
git clone git://people.freedesktop.org/~keithp/xlease
v2:
Always print usage, but note that it can't be used if
setuid/gid
Suggested-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
(cherry picked from commit 38ff29ec8e)
bc1882aa23