evergreen_hpd_sense(9)

💅 evergreen_hpd_sense(9) — like, the hpd sense callback, bestie

okay so real quick, this is a page from the Kernel API Manual and it's about evergreen_hpd_sense(9) — yes that's the whole name, it's giving very "I was named by a C programmer at 3am" but we love her anyway. 🎀

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✨ NAME ✨

evergreen_hpd_sense — the hpd sense callback. that's it. that's the whole vibe. 🦋

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✨ SYNOPSIS ✨

bool evergreen_hpd_sense (struct radeon_device *rdev , enum
radeon_hpd_id hpd );

she returns a bool, she takes two args, she's iconic, periodt. 👑

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✨ ARGUMENTS ✨

• rdev — a radeon_device pointer. yep, the radeon device, the whole main character of the situation 🫶
• hpd — the hpd pin. and "hpd" stands for hotplug detect, iykyk, so it's literally the "hey bestie something got plugged in" pin 🔌

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✨ DESCRIPTION ✨

so what she actually does: she checks if a digital monitor is connected — and this is the evergreen+ era, so get with the program 💅

if it's connected she returns true. if it's not connected she returns false. that's the whole plot, no cap. like yes girl, binary, we stan a low-maintenance function. 🌸

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✨ SEE ALSO ✨

the source lives at ./drivers/gpu/drm/radeon/evergreen.c — go read her, she's right there in the kernel file, no gatekeeping 🧚

and the whole friend group, in order:

• evergreen_get_allowed_info_register(9)
• dce4_wait_for_vblank(9)
• evergreen_page_flip(9)
• evergreen_page_flip_pending(9)
• sumo_pm_init_profile(9)
• btc_pm_init_profile(9)
• evergreen_pm_misc(9)
• evergreen_pm_prepare(9)
• evergreen_pm_finish(9)
• evergreen_hpd_set_polarity(9)
• evergreen_hpd_init(9)
• evergreen_hpd_fini(9)
• evergreen_bandwidth_update(9)
• evergreen_mc_wait_for_idle(9)
• evergreen_gfx_is_lockup(9)

like, that's the entire group chat and they all said hi back. 🔥

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ngl bestie, that's literally the whole page — short, sweet, and she does exactly one (1) thing. respect. 😭

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that's a wrap! this came from ./drivers/gpu/drm/radeon, dated October 2026, and it lives under the name evergreen_hpd_sense(9) — mwah, love u, go plug something in 💖✨