drm_fbdev_client_setup(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, welcome to the drm_fbdev_client_setup(9) page from the Kernel API Manual 🌸 — we're doing kernel DRM fbdev emulation today and it's lowkey iconic.

✨ NAME ✨

drm_fbdev_client_setup — Setup fbdev emulation 💅

🦋 SYNOPSIS 🦋

int drm_fbdev_client_setup (struct drm_device *dev , const struct drm_format_info *format );

🎀 ARGUMENTS 🎀

  • dev — the DRM device 👑
  • format — the preferred color format for the device. If this is zero, DRM_FORMAT_XRGB8888 is used 💖

🌈 DESCRIPTION 🌈

okay so this function sets up fbdev emulation ✨. Restore, hotplug events and teardown are all taken care of — no cap, it's handled. Drivers that do suspend/resume need to call drm_client_dev_suspend and drm_client_dev_resume by themselves 🫶. Simple drivers might use drm_mode_config_helper_suspend.

This function is safe to call even when there are no connectors present 😌. Setup will be retried on the next hotplug event 🔁.

The fbdev client is destroyed by drm_dev_unregister 💀.

⭐ RETURN ⭐

0 on success, or a negative errno code otherwise 😭✨.

🔥 SEE ALSO 🔥

Kernel file ./drivers/gpu/drm/clients/drm_fbdev_client.c 👀

and that's the whole page, bestie 💖 — source/version: ./drivers/gpu/drm/clients, dated October 2026, with drm_fbdev_client_setup(9) doing its little manual-name thing. periodt 🎀

📦 where this page comes from