iio_device_wakeup_eventset(9)

💖 iio_device_wakeup_eventset — the Kernel API Manual, bestie edition 💖

okay so this is a page from the Kernel API Manual, and tbh it's a tiny little function that does one extremely specific thing and honestly? it ate. let's get into it 🫶

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✨ NAME ✨

iio_device_wakeup_eventset — literally just Wakes up the event waitqueue. that's it. that's the whole job. no cap 💅

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🌸 SYNOPSIS 🌸

void iio_device_wakeup_eventset (struct iio_dev *indio_dev );

bestie it returns void, meaning it gives you nothing back, and that's fine, it's not that kind of function 💀

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🎀 ARGUMENTS 🎀

• indio_dev — The IIO device. that's the one and only thing you hand it, the IIO device, and it goes to work. 🦋

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💜 DESCRIPTION 💜

So what does it do? It Wakes up the event waitqueue — specifically the waitqueue that gets used for poll and blocking read. like, if something's sitting there waiting on poll or a blocking read, this is the girl that goes "hey. wake up. 👑"

And Should usually be called when the device is unregistered. That's the moment, iykyk — when the device is getting unregistered, that's when you'd normally be calling this. ✨

🫶 gentle reminder that "usually" is doing a lot of work in that sentence — the original says call it when the device is unregistered, so don't go inventing new call sites and blaming me, bestie.

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/iio/industrialio-event.c — and the struct living in there 👀
• iio_event_interface(9)
• iio_push_event(9)
• iio_event_poll(9)

like, go read those too, they're the friend group this function runs with 💖

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and that's the whole page!! short and iconic, honestly. this one came out of ./drivers/iio, dated October 2026, and it's filed under iio_device_wakeup_eventset(9) — mwah, periodt 🍓🧚‍♀️