iio_dmaengine_buffer_alloc(9)

💅 iio_dmaengine_buffer_alloc(9)

okay so like, welcome to the Kernel API Manual bestie — this is the glow-up guide for iio_dmaengine_buffer_alloc(9) and honestly it's giving "small function, big responsibility" energy ✨

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🌸 NAME 🌸

iio_dmaengine_buffer_alloc — allocate a new buffer that uses DMAengine 🦋

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✨ SYNOPSIS ✨

struct iio_buffer * iio_dmaengine_buffer_alloc (struct dma_chan *chan );

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🎀 ARGUMENTS 🎀

• chan — the DMA channel, periodt. that's the whole vibe 💅

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💖 DESCRIPTION 💖

so what this does is allocate a brand-new IIO buffer, and internally that buffer uses the DMAengine framework to do its transfers. like it's not out here moving data by itself, it's handing the work off to DMAengine and letting it slay 🔥

lowkey important: once you're done using the buffer, you're supposed to release it with iio_dmaengine_buffer_free. don't just leave it there, bestie 😭 free your buffer, it's the respectful thing to do 🫶

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👑 SEE ALSO 👑

• Kernel file ./drivers/iio/buffer/industrialio-buffer-dmaengine.c — iykyk, that's where the magic lives ⭐
• iio_dmaengine_buffer_free(9)
• iio_dmaengine_buffer_teardown(9)
• iio_dmaengine_buffer_setup_ext(9)
• devm_iio_dmaengine_buffer_setup_ext(9)
• devm_iio_dmaengine_buffer_setup_with_handle(9)

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k that's the whole page, no notes 💜 this little manual lives at ./drivers/iio/buffer and its version/date stamp says October 2026 — so like, remember it, cite it, date it, iconic behavior only 🌈🎀