SYNOPSIS

enum vga_switcheroo_handler_flags_t {
VGA_SWITCHEROO_CAN_SWITCH_DDC,
VGA_SWITCHEROO_NEEDS_EDP_CONFIG
};

CONSTANTS

VGA_SWITCHEROO_CAN_SWITCH_DDC

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

VGA_SWITCHEROO_NEEDS_EDP_CONFIG

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)

DESCRIPTION

Handler flags bitmask. Used by handlers to declare their capabilities upon registering with vga_switcheroo.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <[email protected]>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <[email protected]>

vga_switcheroo documentation

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