drm_aux_bridge_register(9)

💅 drm_aux_bridge_register(9)

okay so bestie, welcome to the Kernel API Manual — this one's a lil function from the kernel tree and it is literally the glue holding the bridge chain together. Let's get into it ✨

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🌸 NAME 🌸

drm_aux_bridge_register — makes a cute lil simple bridge device to link the chain 🫶

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🎀 SYNOPSIS 🎀

int drm_aux_bridge_register (struct device *parent );

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🦋 ARGUMENTS 🦋

• parent — the device instance that's providing this bridge 👑

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💖 DESCRIPTION 💖

So this function creates a simple DRM bridge that doesn't implement any drm_bridge operations at all. Not one. Zero. And that's not a bug, that's the whole point, iykyk 💀

These bridges are basically the main character energy of the bridge chain without having to do any of the work — they just fill a place in the bridge chain, linking the surrounding DRM bridges together 🌈 Like, they're the group chat admin who never texts but keeps everyone in the same thread, fr fr.

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⭐ RETURN ⭐

• zero on success 🎉
• a negative error code on failure 😭

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/bridge/aux-bridge.c — go read it, it's giving iconic 🧚

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that's the whole page, no cap 💅

signing off from ./drivers/gpu/drm/bridge with the October 2026 edition of the Kernel API Manual — stay slay, keep your error codes negative, and see you in the bridge chain bestie 🍓💜🎀