drm_dp_mst_edid_read(9)

💅 drm_dp_mst_edid_read(9) — Kernel API Manual 💅

okay so bestie, welcome to the page for drm_dp_mst_edid_read(9) from the Kernel API Manual. It’s giving “grab the EDID for an MST port” energy, and the details are all right here — no cap. 💖

🌸 NAME 🌸

drm_dp_mst_edid_read — get EDID for an MST port ✨

🎀 SYNOPSIS 🎀

the whole vibe is this exact function signature, copy it with your whole chest:

const struct drm_edid * drm_dp_mst_edid_read (struct drm_connector
       *connector , struct drm_dp_mst_topology_mgr *mgr , struct
       drm_dp_mst_port *port );

💖 ARGUMENTS 💖

• connector — toplevel connector to get EDID for.
• mgr — manager for this port.
• port — unverified pointer to a port.

🦋 DESCRIPTION 🦋

This returns an EDID for the port connected to a connector. It validates the pointer still exists, so the caller doesn’t require a reference. 🫶

Like, yes, port comes in as an unverified pointer, but the function checks that the pointer still exists — so the caller doesn’t need to bring a reference to the party. 💅

🌈 SEE ALSO 🌈

okay these are the related pages and functions, and I’m listing every single one because we do not skip refs in this house:

• Kernel file ./drivers/gpu/drm/display/drm_dp_mst_topology.c
• dp mst helper(9)
• Branch device and port refcounting(9)
• drm_dp_mst_get_mstb_malloc(9)
• drm_dp_mst_put_mstb_malloc(9)
• drm_dp_mst_get_port_malloc(9)
• drm_dp_mst_put_port_malloc(9)
• drm_dp_mst_topology_try_get_mstb(9)
• drm_dp_mst_topology_get_mstb(9)
• drm_dp_mst_topology_put_mstb(9)
• drm_dp_mst_topology_try_get_port(9)
• drm_dp_mst_topology_get_port(9)
• drm_dp_mst_topology_put_port(9)
• drm_dp_mst_dpcd_read(9)
• drm_dp_mst_dpcd_write(9)
• drm_dp_mst_connector_late_register(9)
• drm_dp_mst_connector_early_unregister(9)
• drm_dp_add_payload_part1(9)
• drm_dp_remove_payload_part1(9)
• drm_dp_remove_payload_part2(9)
• drm_dp_add_payload_part2(9)
• drm_dp_get_vc_payload_bw(9)
• drm_dp_read_mst_cap(9)
• drm_dp_mst_topology_mgr_set_mst(9)
• drm_dp_mst_topology_queue_probe(9)
• drm_dp_mst_topology_mgr_suspend(9)
• drm_dp_mst_topology_mgr_resume(9)
• drm_dp_mst_hpd_irq_handle_event(9)
• drm_dp_mst_hpd_irq_send_new_request(9)
• drm_dp_mst_detect_port(9)
• drm_dp_mst_get_edid(9)
• drm_dp_atomic_find_time_slots(9)
• drm_dp_atomic_release_time_slots(9)
• drm_dp_mst_atomic_setup_commit(9)
• drm_dp_mst_atomic_wait_for_dependencies(9)
• drm_dp_mst_root_conn_atomic_check(9)
• drm_dp_mst_update_slots(9)
• drm_dp_check_act_status(9)
• drm_dp_calc_pbn_mode(9)
• drm_dp_mst_dump_topology(9)
• drm_dp_mst_port_downstream_of_parent(9)
• drm_dp_mst_add_affected_dsc_crtcs(9)
• drm_dp_mst_atomic_enable_dsc(9)
• drm_dp_mst_atomic_check_mgr(9)
• drm_dp_mst_atomic_check(9)
• drm_atomic_get_mst_topology_state(9)
• drm_atomic_get_old_mst_topology_state(9)
• drm_atomic_get_new_mst_topology_state(9)
• drm_dp_mst_topology_mgr_init(9)
• drm_dp_mst_topology_mgr_destroy(9)
• drm_dp_mst_register_i2c_bus(9)
• drm_dp_mst_unregister_i2c_bus(9)
• drm_dp_mst_is_virtual_dpcd(9)
• drm_dp_mst_aux_for_parent(9)
• drm_dp_mst_dsc_aux_for_port(9)

🫶 that’s the whole page, bestie — signing off from ./drivers/gpu/drm/display, stamped October 2026, on drm_dp_mst_edid_read(9) from the Kernel API Manual. 💖