drm_dp_link_probe9
Probe a displayport link for capabilities
Arguments
aux
DisplayPort AUX channel
link
pointer to structure in which to return link capabilities
Overview
The structure filled in by this function can usually be passed directly into drm_dp_link_power_up and drm_dp_link_configure to power up and configure the link based on the link's capabilities.
Returns 0 on success or a negative error code on failure.