On Mon, Sep 04, 2023 at 12:41:38AM +0300, Dmitry Baryshkov wrote: > During the discussion regarding DisplayPort wrapped in the USB-C > connectors (via the USB-C altmode) it was pointed out that currently > there is no good way to let userspace know if the DRM connector in > question is the 'native' DP connector or if it is the USB-C connector. > > An attempt to use DRM_MODE_CONNECTOR_USB for such connectors was > declined, as existing DP drivers (i915, AMD) use > DRM_MODE_CONNECTOR_DisplayPort. New drivers should behave in the same > way. > Sorry, didn't see the commit message before posting my complaint about USB -> DisplayPort. > An attempt to use subconnector property was also declined. It is defined > to the type of the DP dongle connector rather than the host connector. > > This attempt targets reusing the connector's PATH property. Currently > this property is only used for the DP MST connectors. This patchset > reuses it to point out to the corresponding registered typec port > device. > Still interested in understanding how the path string should look like. Is the path expected to be consumed by machine, or is it only there for human convenience? Regards, Bjorn
