enum vga_switcheroo_handler_flags_t — handler flags bitmask
enum vga_switcheroo_handler_flags_t { VGA_SWITCHEROO_CAN_SWITCH_DDC, VGA_SWITCHEROO_NEEDS_EDP_CONFIG };
whether the handler is able to switch the
DDC lines separately. This signals to clients that they should call
drm_get_edid_switcheroo
to probe the EDID
whether the handler is unable to switch the AUX channel separately. This signals to clients that the active GPU needs to train the link and communicate the link parameters to the inactive GPU (mediated by vga_switcheroo). The inactive GPU may then skip the AUX handshake and set up its output with these pre-calibrated values (DisplayPort specification v1.1a, section 2.5.3.3)