devm_drm_panel_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devm_drm_panel_alloc(9) — Kernel API Manual 🎀

okay bestie, so this is a page from the Kernel API Manual and it's about devm_drm_panel_alloc — yes that's a mouthful, no I'm not apologizing, let's GO ✨

🌸 NAME 🌸

devm_drm_panel_alloc — allocate and initialize a refcounted panel. that's it. that's the whole vibe. 💖

✨ SYNOPSIS ✨

devm_drm_panel_alloc (dev , type , member , funcs , connector_type );

like literally exactly that, spaces and all, don't come for me 🫶

🦋 ARGUMENTS 🦋

  • dev — the struct device of the panel device. your main character device fr.
  • type — the type of the struct that contains struct drm_panel. yes, the container, the outer shell, the housing 💅
  • member — the name of the drm_panel within type. so like, which field inside that struct is the actual panel. iykyk.
  • funcs — callbacks for this panel. the little functions it's gonna call back. so cute.
  • connector_type — the connector type (DRM_MODE_CONNECTOR_*) corresponding to the panel interface. yes, with the asterisk, it's a whole family of constants, not one thing 🌈

💜 DESCRIPTION 💜

okay so here's the tea 🍓 — the reference count of the returned panel is initialized to 1. one. uno. that's your starting ref, periodt.

and here's the iconic part: this reference will be automatically dropped via devm (by calling drm_panel_put) when dev is removed. so you don't have to manually clean up, the devm magic handles it for you when the device dips out. main character devm energy honestly 👑

🔥 RETURN 🔥

pointer to the container structure embedding the panel 🫶 — or ERR_PTR on failure 😭 (which is the kernel's polite way of saying "it didn't work, check the pointer, don't dereference it bestie").

🌟 SEE ALSO 🌟

  • Kernel file ./include/drm/drm_panel.h
  • struct drm_panel_funcs(9)
  • struct drm_panel(9)
ngl, if you're poking at panels you're gonna want those headers open in another window. just saying. 💀

and that's a wrap, bestie 💖 this absolute banger of a page lives in ./include/drm and it's dated October 2026, filed under devm_drm_panel_alloc(9) — slay, go allocate something cute 🌸🦋✨

📦 where this page comes from