STRUCT DRM_FB_HELPER_FUNCS(9)

✨ struct drm_fb_helper_funcs(9) ✨

okay so bestie, welcome to the kernel API manual 💅 this one's all about struct drm_fb_helper_funcs — and no, that's not a typo, it's literally the driver callbacks for the fbdev emulation library 🎀

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🌸 NAME 🌸

struct drm_fb_helper_funcs — driver callbacks for the fbdev emulation library 🦋

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✨ SYNOPSIS ✨

lowkey here's the whole struct, character for character, no cap:

struct drm_fb_helper_funcs {
    int (*fb_dirty)(struct drm_fb_helper *helper, struct drm_clip_rect
*clip);
    void (*fb_restore)(struct drm_fb_helper *helper);
    void (*fb_set_suspend)(struct drm_fb_helper *helper, bool suspend);
 };

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👑 Members 👑

💖 fb_dirty

Driver callback to update the framebuffer memory. If it's set, fbdev emulation will invoke this callback in regular intervals after the framebuffer has been written.

This callback is optional 🫶

Returns: 0 on success, or an error code otherwise.

🌈 fb_restore

Driver callback to restore internal fbdev state. If set, fbdev emulation will invoke this callback after restoring the display mode.

💀 Only for i915. Do not use in new code.

TODO: Fix i915 to not require this callback 🙈

🦋 fb_set_suspend

Driver callback to suspend or resume — if it's set, fbdev emulation will invoke this callback during suspend and resume. Driver should call fb_set_suspend from their implementation. If it's not set, fbdev emulation will invoke fb_set_suspend directly.

💀 Only for i915. Do not use in new code.

TODO: Fix i915 to not require this callback 🙈

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⭐ Description ⭐

Driver callbacks used by the fbdev emulation helper library. that's the whole vibe, honestly ✨

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🎀 SEE ALSO 🎀

• Kernel file ./include/drm/drm_fb_helper.h 🍓
• struct drm_fb_helper_surface_size(9)
• struct drm_fb_helper(9)
• DRM_FB_HELPER_DEFAULT_OPS(9)

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okay that's the whole page bestie, you ate that 🫶 this came from ./include/drm, dated October 2026, and it's filed under struct drm_fb_helper_funcs(9) — periodt 💜🧚