drm_connect..._orientation(9)

📦 version 7.3.1, in nixpkgs unstable

✨ drm_connector_set_panel_orientation ✨

Okay bestie, so this is a page straight out of the Kernel API Manual 🎀, and the star of the show is a little function called drm_connector_set_panel_orientation. Yes, the title up top is abbreviated as drm_connect..._orientation(9) because kernel folks love a dramatic ellipsis, but now you know the whole name 💅.

🌸 NAME 🌸

drm_connector_set_panel_orientation — sets the connector's panel_orientation

Like, that's it. That's the whole job. It sets the panel orientation on your connector. Iconic, lowkey simple, no cap 🫶.

🌈 SYNOPSIS 🌈

int drm_connector_set_panel_orientation (struct drm_connector *connector
, enum drm_panel_orientation panel_orientation );

💖 ARGUMENTS 💖

  • connector — the connector you're setting the panel-orientation property on. It's giving "who am I doing this for" energy ✨
  • panel_orientation — the drm_panel_orientation value you wanna set. This is the actual vibe you're assigning 🔥

🦋 DESCRIPTION 🦋

So what does this function actually do? Two things, bestie:

  1. It sets the connector's panel_orientation.
  2. It attaches a "panel orientation" property to the connector.

Both. At once. Multitasking queen 👑.

Now for the caveats, and these matter, so listen up fr fr 🙈

If you call this function on a connector where the panel_orientation has already been set, it's a no-op — for example when the orientation has been overridden with a kernel commandline option. Like, nothing happens. It's giving "already handled, moving on" 💀.

It is allowed to call this function with a panel_orientation of DRM_MODE_PANEL_ORIENTATION_UNKNOWN, and in that case it's a no-op too. So no crash, no drama, just... nothing 🌸.

And here's the big one: the function shouldn't be called in panel after drm is registered (i.e. drm_dev_register is called in drm). That's the warning zone, bestie. Respect it 🚨

⭐ RETURN ⭐

  • Zero on success 🎉
  • Negative errno on failure 😭

That's the whole return contract. Zero = slay. Negative = something went sideways.

💜 SEE ALSO 💜

Bestie, buckle up, because this list is long and we are not skipping a single one of these icons. Every single reference, coming right up 🫶:

Yeah, that's a lot. Read them all. I don't make the rules 💅 (actually I kind of do, but still).

🧚 a lil sign-off 🧚

This page lives under ./drivers/gpu/drm, and the version vibes are dated October 2026 — so go forth, set those panel orientations responsibly, and remember: no-ops are still valid, bestie 💖✨🎀🦋

📦 where this page comes from