iio_dma_buffer_init(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iio_dma_buffer_init — the girlies' guide (Kernel API Manual, bestie)

okay so you're here for iio_dma_buffer_init(9) and honestly? good choice. this one's the little setup function that gets your DMA buffer queue all cute and ready. let's get into it 🎀

✨ NAME ✨

iio_dma_buffer_init — Initialize DMA buffer queue 🌸

like, it's the "hey bestie wake up, we're initializing" of DMA buffer queues. periodt.

🦋 SYNOPSIS 🦋

void iio_dma_buffer_init (struct iio_dma_buffer_queue *queue , struct
       device *dev , const struct iio_dma_buffer_ops *ops );

no cap, that's the whole signature. three args, returns void, zero drama. 💅

🍓 ARGUMENTS 🍓

  • queue — Buffer to initialize. this is the main character, the one getting set up 💖
  • dev — DMA device. the device doing the actual DMA work 🫶
  • ops — DMA buffer queue callback operations. the callback crew that shows up when things happen ✨

🔥 DESCRIPTION 🔥

so here's the vibe: The DMA device will be used by the queue to do DMA memory allocations. highkey important, so listen up 👑

which means dev should refer to the device that will perform the DMA — like, the actual one, not some random cousin. because the whole point is making sure allocations are done from a memory region that can be accessed by the device. it's giving "make sure the address is in the right neighborhood before you send the mail" fr fr 📬💀

⚠️ bestie don't fumble this one: pick the wrong device and your allocations might land somewhere the device can't reach. just… don't. 🙈

🌈 SEE ALSO 🌈

the whole friend group, honestly. they ate 💅✨

sign-off era 🧚: this lil page comes from ./drivers/iio/buffer, dated October 2026. go forth and initialize responsibly, bestie 💖🌷🦋

📦 where this page comes from