drm_bridge_hpd_notify(9)

✨ drm_bridge_hpd_notify(9) ✨

okay bestie, welcome to the Kernel API Manual 💖 this one's a kernel function page, and it's honestly giving "small function, big responsibility" energy. buckle up 🎀

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🌸 NAME 🌸

drm_bridge_hpd_notify — notify hot plug detection events 💅

like, it's the little messenger that goes "hey bestie, something got plugged in (or unplugged) 👀"

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✨ SYNOPSIS ✨

void drm_bridge_hpd_notify (struct drm_bridge *bridge , enum
drm_connector_status status );

that's the whole signature, no cap 🫶

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🦋 ARGUMENTS 🦋

• bridge — the bridge control structure. this is your main character right here 👑
• status — the output connection status. like, what's the vibe of the connector rn 💫

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💜 DESCRIPTION 💜

so here's the tea: bridge drivers shall call this function to report hot plug events when they detect a change in the output status — but only when hot plug detection has been enabled by drm_bridge_hpd_enable. that's the precondition, iykyk ⭐

⚠️ this function shall be called in a context that can sleep. not me emphasizing that, it's literally in the manual 😭 so pls don't go calling it from some atomic context and acting surprised, ok?

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🌈 SEE ALSO 🌈

the whole friend group 🫶 here's everyone:

• Kernel file ./drivers/gpu/drm/drm_bridge.c overview(9)
• display driver integration(9)
• special care dsi(9)
• dsi bridge operations(9)
• bridge chain format selection(9)
• drm_bridge_enter(9)
• drm_bridge_exit(9)
• drm_bridge_unplug(9)
• drm_bridge_get(9)
• drm_bridge_put(9)
• drm_bridge_clear_and_put(9)
• drm_bridge_put_void(9)
• drm_bridge_add(9)
• devm_drm_bridge_add(9)
• drm_bridge_remove(9)
• drm_bridge_attach(9)
• bridge operations(9)
• drm_bridge_chain_mode_valid(9)
• drm_bridge_chain_mode_set(9)
• drm_atomic_bridge_chain_disable(9)
• drm_atomic_bridge_chain_post_disable(9)
• drm_atomic_bridge_chain_pre_enable(9)
• drm_atomic_bridge_chain_enable(9)
• drm_atomic_bridge_chain_check(9)
• drm_bridge_detect(9)
• drm_bridge_get_modes(9)
• drm_bridge_edid_read(9)
• drm_bridge_hpd_enable(9)
• drm_bridge_hpd_disable(9)
• of_drm_find_and_get_bridge(9)
• of_drm_find_bridge(9)
• of_drm_get_bridge_by_endpoint(9)
• devm_drm_put_bridge(9)

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and that's the page, bestie! 💖 this one lives in ./drivers/gpu/drm, it's from the October 2026 version of the Kernel API Manual, and the whole thing is filed under drm_bridge_hpd_notify(9). slay, go forth and notify those hot plug events 👑✨🌸