drm_atomic_h...hdmi_hotplug(9)

🎀 NAME 🎀

ok so like, this is drm_atomic_h...hdmi_hotplug(9) from the Kernel API Manual, and the actual function is drm_atomic_helper_connector_hdmi_hotplug — it's literally the one that handles the hotplug event for the HDMI connector 💅 bestie this is the good stuff.

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✨ SYNOPSIS ✨

void drm_atomic_helper_connector_hdmi_hotplug (struct drm_connector *connector , enum drm_connector_status status );

like, that's the whole signature, no cap 🫶

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🌸 ARGUMENTS 🌸

• connector — a pointer to the HDMI connector 👑 that's it, that's the connector, give it a lil pat.
• status — the connection status 💖 like, is it plugged in or not, the whole vibe check.

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💖 DESCRIPTION 💖

okay so here's the tea: this function should be called as a part of the .detect / .detect_ctx callbacks for all status changes ⭐ like every single one, no skipping, fr fr.

think of it as the main character of hotplug handling — any time the status shifts, this is who gets the call 📞✨

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🦋 SEE ALSO 🦋

• kernel file ./drivers/gpu/drm/display/drm_hdmi_state_helper.c 🍓 (yes, that's where the magic lives)
• hdmi helpers(9)
• __drm_atomic_helper_connector_hdmi_state_init(9)
• drm_atomic_helper_connector_hdmi_check(9)
• drm_hdmi_connector_mode_valid(9)
• drm_atomic_helper_connector_hdmi_update_infoframes(9)
• drm_atomic_helper_connector_hdmi_update_audio_infoframe(9)
• drm_atomic_helper_connector_hdmi_clear_audio_infoframe(9)
• drm_atomic_helper_connector_hdmi_force(9)

go read those too, they're all part of the friend group 🧚💜

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and that's a wrap bestie!! this page lives under ./drivers/gpu/drm/display, dated October 2026 — mwah 💋 slay, go plug something in 💅🔥