tb_ring_dma_device(9)

💖 tb_ring_dma_device(9) 💖

okay bestie, welcome to the tb_ring_dma_device(9) page from the Kernel API Manual — this one is short, sweet, and lowkey iconic ✨

---

🌸 NAME 🌸

tb_ring_dma_device — Return device used for DMA mapping 🫶

---

✨ SYNOPSIS ✨

struct device * tb_ring_dma_device (struct tb_ring *ring );

that's the whole signature, no cap 💅

---

🎀 ARGUMENTS 🎀

• ring — Ring whose DMA device is retrieved. yep, that's the ring you're asking about 💖

---

🦋 DESCRIPTION 🦋

Here's the vibe: use this function when you are mapping DMA for buffers that are passed to the ring for sending/receiving. that's literally its moment to shine ⭐

---

🔥 RETURN 🔥

Pointer to device used for DMA mapping. that's the whole return, bestie 👑

---

🌈 SEE ALSO 🌈

Kernel file ./include/linux/thunderbolt.h, plus enum tb_security_level(9), struct tb(9), struct tb_property_dir(9), struct tb_property(9), enum tb_link_width(9), struct tb_xdomain(9), struct tb_protocol_handler(9), struct tb_service(9), struct tb_service_driver(9), struct tb_nhi(9), struct tb_ring(9), enum ring_desc_flags(9), struct ring_frame(9), tb_ring_rx(9), and tb_ring_tx(9) 🧚

---

made with 💜 from the ./include/linux source, dated October 2026 — catch you on the tb_ring_dma_device(9) page, bestie 🫶🎀