iio_dmaengi...fer_teardown(9)

👑 iio_dmaengine_buffer_teardown — a Kernel API Manual moment 👑

okay so bestie, welcome to the Kernel API Manual ✨ the page header literally reads iio_dmaengi...fer_teardown(9) (yes girl, the terminal truncates it, that's just how it is 💅) and we're about to get into it.

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🌸 NAME 🌸

iio_dmaengine_buffer_teardown — releases the DMA channel and frees the buffer 🎀

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🦋 SYNOPSIS 🦋

void iio_dmaengine_buffer_teardown (struct iio_buffer *buffer );

like, that's the whole signature, no cap. 📎

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💜 ARGUMENTS 💜

• buffer — the buffer to free 🫶 this is the one getting cleaned up, bestie.

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✨ DESCRIPTION ✨

so what this icon actually does: it releases the DMA channel and then frees the buffer — specifically the buffer that was previously set up with iio_dmaengine_buffer_setup_ext. it's giving cleanup era, it's giving closure 💅 you set it up, now you tear it down, periodt.

lowkey the most main-character energy here is that it's the counterpart to the setup function — nothing more, nothing less. no surprises, just tidy-up behavior 🔥

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🧚 SEE ALSO 🧚

• Kernel file ./drivers/iio/buffer/industrialio-buffer-dmaengine.c — the literal source, go read it if you're nosy 🙈
• iio_dmaengine_buffer_alloc(9)
• iio_dmaengine_buffer_free(9)
• iio_dmaengine_buffer_setup_ext(9)
• devm_iio_dmaengine_buffer_setup_ext(9)
• devm_iio_dmaengine_buffer_setup_with_handle(9)

the whole friend group, honestly 🫶 go say hi to all of them.

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ngl if you're here it's because something needs freeing — don't skip it, that's not a vibe 😭

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okay bye bestie, this page lives under ./drivers/iio/buffer and it's dated October 2026 — mwah 💋💖 slay, stay allocated (until you're not) ⭐🌈