drm_edid_get_panel_id(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_edid_get_panel_id(9) — Get a panel's ID from EDID 💅

okay bestie, welcome to the Kernel API Manual ✨ this little function is genuinely iconic and you're gonna get it, i promise 🫶

🌸 NAME 🌸

drm_edid_get_panel_id — get a panel's ID from EDID, no cap 💖

✨ SYNOPSIS ✨

u32 drm_edid_get_panel_id (const struct drm_edid *drm_edid);

🎀 ARGUMENTS 🎀

  • drm_edid — the EDID that contains the panel ID. that's the whole vibe of this parameter, she's just holding the ID for you 🦋

💜 DESCRIPTION 💜

so the way this works is: this function takes the first block of a panel's EDID and — assuming that the EDID is valid (important caveat, bestie, don't skip it 🙈) — it extracts the ID right out of it.

and the ID itself? it's a 32-bit value, made up of 16 bits of manufacturer ID and 16 bits of per-manufacturer ID 🎯 like, two little halves of one gorgeous whole.

it's supposed to be different for each different modem of panel — that's the design intent, that's the dream, that's the main character energy of this ID 🔥

⭐ RETURN ⭐

you get back a 32-bit ID that should be different for each make/model of panel ✨

want the deets on how that ID is structured? go check drm_edid_encode_panel_id and drm_edid_decode_panel_id — they're the ones holding the blueprint 🔍💅

and heads up: if the EDID size is less than a base block, this function returns 0. zero. nothing. the void. 😭 that's your signal that there just wasn't enough EDID to work with.

🌈 SEE ALSO 🌈

kernel file ./drivers/gpu/drm/drm_edid.c — and honestly the whole extended friend group, because there are so many of them:

and that's the whole page, bestie, you ate that 🍓💅

sign-off szn: this lil masterpiece came out of ./drivers/gpu/drm and it's dated October 2026 — save the date, put it in your calendar, frame it honestly 🎀💖✨

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