Touchscreen rotation on wlroots-based wayland compositors.

[dashavoo]

In #43 @efernau explained the command to map an input to an output for Sway. At that time Sway was the only supported Wayland compositor. Since then I can see compositors that support wlr_output_management_v1 should be able to use rot8, but I don't know how to map the input to the output and so the touchscreen and stylus are not rotating with the display.

What command do I need to run/configuration do I need to edit?

[dashavoo]

Going to answer my own question - it seems like there isn't a standard way and every compositor needs to expose something itself.
For labwc you can add a touch entry into your rc.xml (see here). You need to use the name rather than the identifier of the device, which you can get with libinput list-devices|grep "Device:"

I have only managed to get this to work for the finger input and not stylus input, but both work under Sway so I think it is clearly a labwc issue rather than a rot8 issue.