drm_dp_cec_irq(9)

✨ drm_dp_cec_irq ✨

okay so bestie, welcome to the drm_dp_cec_irq(9) page from the Kernel API Manual — yes it's a real kernel function, no it's not scary, i promise 🫶

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🌸 NAME 🌸

drm_dp_cec_irq — handle CEC interrupt, if any 💅 (emphasis on if any, she's checking, not assuming)

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🎀 SYNOPSIS 🎀

void drm_dp_cec_irq (struct drm_dp_aux *aux );

like, that's it. that's the whole signature. she's void, she returns nothing, she simply does her job ✨

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🦋 ARGUMENTS 🦋

• aux — DisplayPort AUX channel 👑 this is the one and only thing you hand her, and it's the channel she's gonna look at

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💖 DESCRIPTION 💖

so here's the vibe: you should be calling drm_dp_cec_irq when you're handling an IRQ_HPD request. that's the moment, that's the context, that's when she wants to be invoked 🔥

then — if CEC-tunneling-over-AUX is present (big if, love a conditional), she'll check for a CEC_IRQ and handle it accordingly 💫 no CEC-tunneling-over-AUX? then there's nothing for her to do, and that's fine, she's unbothered.

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🌈 SEE ALSO 🌈

• the kernel file ./drivers/gpu/drm/display/drm_dp_cec.c — literally the source, go read it iykwyk 👀
• dp cec helpers(9) — the whole helper squad
• drm_dp_cec_register_connector(9) — the registration bestie
• drm_dp_cec_unregister_connector(9) — and her cleanup counterpart, iconic duo fr fr

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ngl bestie, the whole story lives in ./drivers/gpu/drm/display — that's the source and version corner, dated October 2026, all official under the Kernel API Manual. periodt. 💅🎀