drm_drv_uses_atomic_modeset(9)

💅 NAME 💅

drm_drv_uses_atomic_modeset — the little vibe check that tells you whether a driver actually implements atomic_commit()

ok so hi bestie, welcome to the Kernel API Manual ✨ this one's about drm_drv_uses_atomic_modeset(9) and it's honestly iconic of the kernel to give us a whole function for this 🎀

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✨ SYNOPSIS ✨

bool drm_drv_uses_atomic_modeset (struct drm_device *dev );

like yes that's the whole signature, she's simple, she's clean, she returns a bool 🦋

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🌸 ARGUMENTS 🌸

• dev — your DRM device 💖 that's it, that's the whole argument, she takes one (1) device and minds her own business

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💜 DESCRIPTION 💜

so here's the tea ☕ this check is useful if drivers do not have DRIVER_ATOMIC set but have atomic modesetting internally implemented.

read that again bestie, because it's lowkey the whole point 👑 the flag says one thing, the internals are doing another, and this function is the one who actually knows what's going on. no cap. 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./include/drm/drm_drv.h 💫
• enum drm_driver_feature(9)
• struct drm_driver(9)
• devm_drm_dev_alloc(9)
• drm_dev_is_unplugged(9)
• drm_core_check_all_features(9)
• drm_core_check_feature(9)

go read those next, iykyk 📚✨

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that's the whole page babes 💀 short and sweet fr fr. this gem lives in ./include/drm and it's serving October 2026 energy ⭐ mwah, love u, go check ur feature flags 💅🎀🦋