drm_dev_is_unplugged(9)

👑 drm_dev_is_unplugged(9) — like, the Kernel API Manual edition, bestie ✨

okay so real talk, this one lives in the Kernel API Manual and it's short but she's important, so pay attention 💅

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🌸 NAME 🌸

drm_dev_is_unplugged — the vibe check for "is this DRM device unplugged or not" 🔌💀

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✨ SYNOPSIS ✨

bool drm_dev_is_unplugged (struct drm_device *dev );

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🎀 ARGUMENTS 🎀

• dev — the DRM device in question, your main character 🫶

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🦋 DESCRIPTION 🦋

So you can call this function when you wanna check whether a hotpluggable is unplugged, periodt. The unplugging itself gets signalled through drm_dev_unplug. And here's the sweet part — if a device is unplugged, these two functions guarantee that any store before calling drm_dev_unplug is visible to callers of this function after it completes. no cap, that's the whole promise 🔥

WARNING: ⚠️ This function fundamentally races against drm_dev_unplug. It is recommended that drivers instead use the underlying drm_dev_enter and drm_dev_exit function pairs. Like... genuinely recommended. It's giving "please don't" 😭🙈

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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_core_check_all_features(9)
• drm_core_check_feature(9)
• drm_drv_uses_atomic_modeset(9)

go read those too, iykyk 👑

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and that's the page, bestie 🧚 this cutie came out of ./include/drm and it's stamped October 2026 — so like, future-versioned slay 💖⭐