drm_panel_dp_aux_backlight(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay so bestie, this is the Kernel API Manual entry for drm_panel_dp_aux_backlight — the function that literally creates and uses a DP AUX backlight. that's it, that's the vibe ✨

🌸 SYNOPSIS 🌸

int drm_panel_dp_aux_backlight (struct drm_panel *panel , struct drm_dp_aux *aux );

🎀 ARGUMENTS 🎀

  • panel — the DRM panel, your main character 🫶
  • aux — the DP AUX channel to use, iykyk 💅

🦋 DESCRIPTION 🦋

so like, use this function to create and handle the backlight if your panel supports backlight control over the DP AUX channel using DPCD registers, as per VESA's standard backlight control interface. no cap, that's the whole point 🌈

when the panel is enabled, the backlight will be enabled after a successful call to drm_panel_funcs.enable ⭐

when the panel is disabled, the backlight will be disabled before the call to drm_panel_funcs.disable 💜

a typical implementation for a panel driver supporting backlight control over DP AUX will call this function at probe time. backlight will then be handled transparently, without requiring any intervention from the driver. it's giving effortless, honestly 😭🔥

👑 RETURN 👑

0 on success, or a negative error code on failure. periodt 💀

💜 SEE ALSO 💜

like, go read all of these, bestie — every single one is iconic in its own way:

aaaand that's the whole thing, bestie 🧚‍♀️ this page lives in ./drivers/gpu/drm/display and it's dated October 2026 — so like, mark your calendar for drm_panel_dp_aux_backlight(9) slay 💖🫶✨

📦 where this page comes from