drm_connecto...er_get_modes(9)

💅 drm_connector_helper_get_modes(9) — like, the Kernel API Manual, bestie ✨

okay so real talk, this is a page from the Kernel API Manual and the function we're obsessing over today is the one and only drm_connector_helper_get_modes 🫶

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🌸 NAME 🌸

drm_connector_helper_get_modes — reads the EDID and updates the connector. that's the whole vibe, no cap 💖

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✨ SYNOPSIS ✨

int drm_connector_helper_get_modes (struct drm_connector *connector );

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🎀 ARGUMENTS 🎀

• connector — the connector. yeah that's it. that's the whole argument. she's lowkey the main character here 👑

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🦋 DESCRIPTION 🦋

so what actually happens: it reads the EDID using drm_edid_read, and heads up — that function requires that connector->ddc is set, so don't come for her if that's not wired up 🙈 — and then it updates the connector using that EDID. read first, glow up second, periodt ✨

this is literally the move when you want to use it as the "default" connector helper .get_modes hook, and the driver doesn't need any special processing. like, no extra steps, no drama, it just works 💅

it also sets the example for what custom .get_modes hooks should do when it comes to the EDID read and the connector update. so if you're writing your own, this is the reference behaviour, iykyk 🌈

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🔥 RETURN 🔥

the number of modes. that's the return value, bestie — modes, counted 🎀

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💜 SEE ALSO 💜

okay gather round, the whole friend group's here 🫶

• the Kernel file ./drivers/gpu/drm/drm_probe_helper.c output probing helper overview(9)
• drm_kms_helper_poll_enable(9)
• drm_kms_helper_poll_reschedule(9)
• drm_helper_probe_detect(9)
• drm_helper_probe_single_connector_modes(9)
• drm_kms_helper_hotplug_event(9)
• drm_kms_helper_connector_hotplug_event(9)
• drm_kms_helper_is_poll_worker(9)
• drm_kms_helper_poll_disable(9)
• drm_kms_helper_poll_init(9)
• drm_kms_helper_poll_fini(9)
• drmm_kms_helper_poll_init(9)
• drm_connector_helper_hpd_irq_event(9)
• drm_helper_hpd_irq_event(9)
• drm_crtc_helper_mode_valid_fixed(9)
• drm_connector_helper_get_modes_fixed(9)
• drm_connector_helper_tv_get_modes(9)
• drm_connector_helper_detect_from_ddc(9)

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and that's the page!! 💖✨ this lil beauty lives over in ./drivers/gpu/drm, and she's dated October 2026 — the version/source deets for the win 🦋 go forth and read those EDIDs, bestie, you're gonna slay 🌸💅