[Wayland-bugs] [Bug 100707] Document udev property "WL_OUTPUT"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100707

--- Comment #4 from Pekka Paalanen <ppaalanen at gmail.com> ---
As it so happens, I am currently working on a use case where Weston is driving
a dual-head configuration where *both* heads have a touchscreen input device.
Each input device needs to be somehow associated with the right DRM connector.
This is also in a clone mode, but that's beside the point.

The displays are using standard display connectors and touchscreens are using
USB, everything can be hotplugged individually. I need to do things like
disabling the touch device if the display get unplugged.

I assume using libinput_device_get_output_name() is the right thing to use
here?

Is the udev property WL_OUTPUT the right thing to control that, or should we be
doing something else?

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