On Thursday, August 17th, 2023 at 21:33, Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> wrote: > We have been looking for a way to document that the corresponding DP > port is represented by the USB connector on the device. > > Consequently, I believe the best way to document it, would be to use > DisplayPort / USB, when there is no dongle connected, switching to > DisplayPort / HDMI, DisplayPort / VGA, DisplayPort / DisplayPort, etc. > when the actual dongle / display is connected and then switching back to > the DisplayPort / USB when it gets disconnected. > > If this sounds good to all parties, I'll post v2, adding this > explanation to the cover letter. But how can user-space discover that the port is USB-C when it's connected? That information is lost at this point. (In addition, this clashes with the existing semantics of the subconnector prop as discussed before: USB-C is not sub-, it's super-.)