devm_drm_dp_hpd_bridge_add(9)

✨ devm_drm_dp_hpd_bridge_add(9) ✨

okay so this is straight out of the Kernel API Manual, and it's lowkey one of those tiny functions that just works so your DisplayPort bridge stuff doesn't fall apart 💖

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🎀 NAME 🎀

devm_drm_dp_hpd_bridge_add — registers a HDP DisplayPort bridge, that's the whole vibe bestie ✨

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🌸 SYNOPSIS 🌸

int devm_drm_dp_hpd_bridge_add (struct device *dev , struct
       auxiliary_device *adev );

like literally that's it, two args, one int coming back at you 🫶

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💅 ARGUMENTS 💅

• dev — the struct device you're tying the registration lifetime to. yes bestie, lifetime — this is a devm function, so the cleanup is handled for you and you don't gotta think about it 💀
• adev — the bridge auxiliary device that's getting registered 👑

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⭐ RETURN ⭐

zero on success, or a negative errno if things went sideways 😭 (check it, fr fr, don't just ignore the return value)

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpu/drm/bridge/aux-hpd-bridge.c — go read the source, iykyk
• devm_drm_dp_hpd_bridge_alloc(9)
• drm_dp_hpd_bridge_register(9)
• drm_aux_hpd_bridge_notify(9)

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okay that's the whole page, no cap 🌈 and for the cute sign-off: this lil beauty lives in ./drivers/gpu/drm/bridge, dated October 2026, and it's the devm_drm_dp_hpd_bridge_add(9) entry from the Kernel API Manual — iconic, periodt 💜🎀