rockchip_drm_wait_vact_end(9)

💖 rockchip_drm_wait_vact_end(9) 💖

okay so this is a page from the Kernel API Manual, and bestie, we're diving into the Rockchip DRM world — specifically rockchip_drm_wait_vact_end. it's giving "tiny function, big job" energy. let's get into it ✨

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🌸 NAME 🌸

rockchip_drm_wait_vact_end —

so here's the thing: the original NAME line has literally nothing after the dash. no description, no blurb, nada. the man page just... left it blank 😭. so that's what we're working with, fr fr. the function name is the whole vibe.

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🦋 SYNOPSIS 🦋

int rockchip_drm_wait_vact_end (struct drm_crtc *crtc , unsigned int
mstimeout );

that's the whole call, bestie — returns an int, takes a struct drm_crtc * and an unsigned int. no cap. 🫶

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🎀 ARGUMENTS 🎀

• crtc — the CRTC to enable line flag 👑 (that's the one you're passing in, main character energy)
• mstimeout — millisecond for timeout ⏱️ (yes, milliseconds — don't come at me with seconds, it will not slay)

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🔥 DESCRIPTION 🔥

Wait for vact_end line flag irq or timeout.

that's it, that's the whole moment 💅 — you're literally waiting for that vact_end line flag irq to come through, or for the timeout to hit, whichever gets there first. the way that's the entire description and honestly? iconic.

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⭐ RETURN ⭐

• Zero on success 🎉
• negative errno on failure 😭

so like, 0 means you ate and left no crumbs, and anything negative means something went sideways and you should check that errno, iykyk.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/rockchip/rockchip_drm_vop.c 📁 — go read the source, bestie, that's where the real lore lives

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💀 quick vibe check: the man page gives you exactly two return outcomes — zero or negative errno — so don't go inventing any heroic in-between states, okay? periodt. 💅

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and that's the whole page, bestie! 🧚 this little gem comes to you from the ./drivers/gpu/drm/rockchip source, dated October 2026 — so mark your calendar and stan responsibly 👑💜