apm_do_busy(9)

💅 apm_do_busy(9) — the Kernel API Manual, but make it cute

okay so bestie, welcome to apm_do_busy(9) — yes that's its whole name, it's from the Kernel API Manual, and no I will not be normal about it. This is a tiny little function with big "tell the BIOS what's up" energy and honestly? iconic.

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✨ NAME ✨

apm_do_busy — the function that tells the BIOS the CPU is busy 🐝💖

like, literally that. that's the whole job. it's giving "hey bestie, we're working over here."

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🌸 SYNOPSIS 🌸

void apm_do_busy (void );

that's it. that's the function. void in, void out. no drama, no arguments, no nada. she takes nothing and she returns nothing and she slays while doing it. 💅

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🎀 ARGUMENTS 🎀

• void — no arguments 🫶

fr fr, there is nothing to pass in here. zero. empty set. the function is self-sufficient, main character energy only.

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🦋 DESCRIPTION 🦋

okay so what does she actually do, you're asking? she requests that the BIOS brings the CPU back to full performance. that's the whole vibe. 🔥

that's right — she's the one who slides into the BIOS's DMs and is like "hi bestie, we're not chilling anymore, we're working, so could you please restore the CPU to full performance, thanks so much, love you, bye." 💌

think of it as the un-nap button. no cap, that's genuinely the energy. 😭

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🌈 SEE ALSO 🌈

bestie the reading list is LONG and honestly every single one of these deserves its own sparkle moment, so buckle up:

• Kernel file ./arch/x86/kernel/apm_32.c — this is where the magic lives, go read it, i believe in you 📖✨
• apm_error(9)
• __apm_bios_call(9)
• apm_bios_call(9)
• __apm_bios_call_simple(9)
• apm_bios_call_simple(9)
• apm_driver_version(9)
• apm_get_event(9)
• set_power_state(9)
• set_system_power_state(9)
• apm_do_idle(9)
• apm_cpu_idle(9)
• apm_power_off(9)
• apm_enable_power_management(9)
• apm_get_power_status(9)
• apm_engage_power_management(9)
• apm_console_blank(9)

that's the whole squad, the complete friend group, no one left behind 👑 and yes apm_do_idle(9) is in there and yes she is the opposite of apm_do_busy(9) and yes that is the funniest thing in this entire manpage, i don't make the rules 💀

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ngl the only thing this page asks of you is to remember that apm_do_busy takes no arguments and returns nothing. that's it. that's the whole assignment. you got this 🍓

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and that's a wrap, bestie !! 🧚 this little beauty comes to you straight out of ./arch/x86/kernel, and she's dated October 2026 — so go forth, tell that BIOS the CPU is busy, and slay responsibly 💜💖✨