SYNOPSIS

struct drm_connector {
struct drm_device * dev;
struct device * kdev;
struct device_attribute * attr;
struct list_head head;
struct drm_mode_object base;
char * name;
int connector_type;
int connector_type_id;
bool interlace_allowed;
bool doublescan_allowed;
bool stereo_allowed;
struct list_head modes;
enum drm_connector_status status;
struct list_head probed_modes;
struct drm_display_info display_info;
const struct drm_connector_funcs * funcs;
struct drm_property_blob * edid_blob_ptr;
struct drm_object_properties properties;
struct drm_property_blob * path_blob_ptr;
uint8_t polled;
int dpms;
const struct drm_connector_helper_funcs * helper_private;
struct drm_cmdline_mode cmdline_mode;
enum drm_connector_force force;
bool override_edid;
uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
struct drm_encoder * encoder;
uint8_t eld[MAX_ELD_BYTES];
bool dvi_dual;
int max_tmds_clock;
bool latency_present[2];
int video_latency[2];
int audio_latency[2];
int null_edid_counter;
unsigned bad_edid_counter;
bool edid_corrupt;
struct dentry * debugfs_entry;
struct drm_connector_state * state;
bool has_tile;
struct drm_tile_group * tile_group;
bool tile_is_single_monitor;
uint8_t num_h_tile;
uint8_t num_v_tile;
uint8_t tile_h_loc;
uint8_t tile_v_loc;
uint16_t tile_h_size;
uint16_t tile_v_size;
};

MEMBERS

dev

parent DRM device

kdev

kernel device for sysfs attributes

attr

sysfs attributes

head

list management

base

base KMS object

name

connector name

connector_type

one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h

connector_type_id

index into connector type enum

interlace_allowed

can this connector handle interlaced modes?

doublescan_allowed

can this connector handle doublescan?

stereo_allowed

can this connector handle stereo modes?

modes

modes available on this connector (from fill_modes + user)

status

one of the drm_connector_status enums (connected, not, or unknown)

probed_modes

list of modes derived directly from the display

display_info

information about attached display (e.g. from EDID)

funcs

connector control functions

edid_blob_ptr

DRM property containing EDID if present

properties

property tracking for this connector

path_blob_ptr

DRM blob property data for the DP MST path property

polled

a DRM_CONNECTOR_POLL_<foo> value for core driven polling

dpms

current dpms state

helper_private

mid-layer private data

cmdline_mode

mode line parsed from the kernel cmdline for this connector

force

a DRM_FORCE_<foo> state for forced mode sets

override_edid

has the EDID been overwritten through debugfs for testing?

encoder_ids[DRM_CONNECTOR_MAX_ENCODER]

valid encoders for this connector

encoder

encoder driving this connector, if any

eld[MAX_ELD_BYTES]

EDID-like data, if present

dvi_dual

dual link DVI, if found

max_tmds_clock

max clock rate, if found

latency_present[2]

AV delay info from ELD, if found

video_latency[2]

video latency info from ELD, if found

audio_latency[2]

audio latency info from ELD, if found

null_edid_counter

track sinks that give us all zeros for the EDID

bad_edid_counter

track sinks that give us an EDID with invalid checksum

edid_corrupt

indicates whether the last read EDID was corrupt

debugfs_entry

debugfs directory for this connector

state

current atomic state for this connector

has_tile

is this connector connected to a tiled monitor

tile_group

tile group for the connected monitor

tile_is_single_monitor

whether the tile is one monitor housing

num_h_tile

number of horizontal tiles in the tile group

num_v_tile

number of vertical tiles in the tile group

tile_h_loc

horizontal location of this tile

tile_v_loc

vertical location of this tile

tile_h_size

horizontal size of this tile.

tile_v_size

vertical size of this tile.

DESCRIPTION

Each connector may be connected to one or more CRTCs, or may be clonable by another connector if they can share a CRTC. Each connector also has a specific position in the broader display (referred to as a 'screen' though it could span multiple monitors).

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

COPYRIGHT