probe_irq_on(9)

✨ probe_irq_on(9) ✨

okay so this is a page from the Kernel API Manual bestie, and we're talking about probe_irq_on — genuinely one of the most useful little gremlins in the IRQ toolbox 💅

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🌸 NAME 🌸

probe_irq_on — begin an interrupt autodetect 🎀

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🦋 SYNOPSIS 🦋

unsigned long probe_irq_on (void );

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💜 ARGUMENTS 💜

• void — no arguments. nothing. zero. empty. it takes nothing and honestly? queen behaviour 👑

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🔥 DESCRIPTION 🔥

So you wanna know which interrupt line something is actually sitting on and nobody told you?? say less, this function is your girl 💖

probe_irq_on commences probing for an interrupt. The interrupts are scanned, and a mask of potential interrupt lines is returned to you. that's it, that's the whole vibe — you call it, it hands you back a mask of candidates 🌈

ngl this is the first step of the whole ritual — you don't get to just call this one and dip, okay? it's giving "to be continued…" 😭

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🧚 SEE ALSO 🧚

• Kernel file ./kernel/irq/autoprobe.c (yes, it literally lives in a file called autoprobe, iconic 👑)
• probe_irq_mask(9)
• probe_irq_off(9)

fr fr go read those next, they're the other two-thirds of this whole situation 🫶

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⭐ a lil sign-off ⭐

this page came to you from ./kernel/irq and it's dated October 2026 — so basically it's from the future, slay 🦋✨

k bye, go detect some interrupts bestie 💅💖