iio_triggere...er_setup_ext(9)

💖 NAME 💖

iio_triggered_buffer_setup_ext — the one that sets up your triggered buffer and the pollfunc, together, bestie ✨

(also yes, the page title is iio_triggere...er_setup_ext(9) — the kernel API manual really said "imma abbreviate" 💀, it's the same function, we move)

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🌸 SYNOPSIS 🌸

int iio_triggered_buffer_setup_ext (struct iio_dev *indio_dev ,
irqreturn_t (*h)(int irq, void *p) , irqreturn_t (*thread)(int irq, void
*p) , enum iio_buffer_direction direction , const struct
iio_buffer_setup_ops *setup_ops , const struct iio_dev_attr
**buffer_attrs );

okay so that's a lot of args, i know, but it's literally all needed 🫶 every single one is doing its job, no dead weight.

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🎀 ARGUMENTS 🎀

• indio_dev — the IIO device structure 💫 your whole device situation lives here.
• h — the function that gets used as the pollfunc top half 🔥
• thread — the function that gets used as the pollfunc bottom half 🌈
• direction — which way the data stream flows (in/out) 🦋
• setup_ops — the buffer setup functions to use for this device. and listen — if it's NULL, the default setup functions for triggered buffers get used instead, easy peasy ✨
• buffer_attrs — extra sysfs buffer attributes for this IIO buffer 💅 a little something extra, as a treat.

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⭐ DESCRIPTION ⭐

so this function is basically the group-project-assembler of the IIO world 👑 it combines a bunch of common tasks that you'd normally have to do by hand whenever you're setting up a triggered buffer. specifically: it allocates the buffer and it allocates the pollfunc. two birds, one iconique function 🐦✨

⚠️ timing check, bestie, this one matters: before you call this function, the indio_dev structure should already be completely initialized — but not yet registered. in practice? that means you call this right before iio_device_register. fr fr, order is everything 🙈

and when you're done and you need to free all the resources this bad boy allocated, you call iio_triggered_buffer_cleanup 🧹 don't forget, or it's giving leak era 💀

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/iio/buffer/industrialio-triggered-buffer.c — go read the source, it ate 💅
• iio_triggered_buffer_cleanup(9) — the cleanup half of the story, your ride or die for teardown 🌸

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and that's the whole page, bestie — no cap, every detail is here 🫶 this came to you from ./drivers/iio/buffer, dated October 2026, living in the Kernel API Manual ⭐ mwah, go write some drivers 💜