wayland-info is a utility for displaying information about the Wayland protocols supported by a Wayland compositor.
It can be used to check which Wayland protocols and versions are advertised by the Wayland compositor.
wayland-info also provides additional information for a subset of Wayland protocols it knows about, namely Linux DMABUF, presentation time, tablet and XDG output protocols.
wayland-info does not accept any command line option.
The name of the display (socket) of an already running Wayland server, without the path. The directory path is always taken from XDG_RUNTIME_DIR. If WAYLAND_DISPLAY is not set, the socket name is "wayland-0".