DP CEC HELPERS(9)

💅 dp cec helpers — section 9, Kernel API Manual, bestie 🎀

okay so this page is literally called dp cec helpers and it lives in section 9 of the Kernel API Manual, and it's all about those tiny helper functions that handle one very specific ✨thing✨. Let's get into it 🦋

✨ DESCRIPTION ✨

so basically these functions take care of supporting the CEC-Tunneling-over-AUX feature of DisplayPort-to-HDMI adapters. that's it. that's the whole job. they handle the CEC tunneling. over AUX. for your DP-to-HDMI adapter. no cap 🔥

it's giving "small but mighty" honestly — the whole feature just gets quietly supported by this little crew of helpers and nobody claps for them 😭 so we're clapping for them 🫶

🌸 SEE ALSO 🌸

• the kernel file ./drivers/gpu/drm/display/drm_dp_cec.c — that's where the whole thing lives, go read it iykwyk 💖
• drm_dp_cec_irq(9)
• drm_dp_cec_register_connector(9)
• drm_dp_cec_unregister_connector(9)

like, those three are the main character energy of this whole page, periodt 👑

anyway that's the page, bestie 🌈 this lil drop came from ./drivers/gpu/drm/display and it's dated October 2026 — bookmark it, screenshot it, tattoo it, whatever 💜✨