vcs_size(9)

✨ vcs_size(9) ✨

okay so this is a page from the Kernel API Manual — yes, the kernel has a manual, and yes it's serving vintage typewriter realness, but we're here for it 💅 This one's about vcs_size, and it's honestly short but iconic.

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💖 NAME 💖

vcs_size — returns the size for a VC in @vc 🎀

(no cap, that's literally the whole job. it's giving "one specific task, done well" main character energy.)

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🦋 SYNOPSIS 🦋

int vcs_size (const struct vc_data *vc , bool attr , bool unicode );

like, that's the whole signature bestie — one int coming back at you, three things going in 🫶

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🌸 ARGUMENTS 🌸

• vc — which VC we're talking about here 💜 (a const struct vc_data *, so it's read-only and on its best behaviour)
• attr — does it use attributes? ✨ (a bool, so like… yes or no, pick one)
• unicode — is it unicode? 🔥 (also a bool, also a yes-or-no vibe check)

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🧚 DESCRIPTION 🧚

okay this is the important part, don't scroll past it 🙈

Must be called with console_lock.

that's it. that's the description. but it's not a suggestion, bestie — it's a must. hold that lock, or things go sideways and nobody wants that 😭

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👑 SEE ALSO 👑

• Kernel file ./drivers/tty/vt/vc_screen.c — the whole implementation lives here, go read it, it ate 💀
• vcs_vc(9) — the sister page, also a must-read, iykyk 💖

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fr fr: lock first, call second. no lock, no peace 🌈

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that's the whole page, and it's from the kernel tree over in ./drivers/tty/vt, dated October 2026 — so like, future-iconic ✨ go forth and console_lock responsibly, mwah 💋🎀