xdma_set_vector_reg(9)

💅 xdma_set_vector_reg(9)

okay so bestie, welcome to the Kernel API Manual, and today's main character is xdma_set_vector_reg — literally the function that configures your hardware IRQ registers. yes. that one. let's get into it 🫶

---

✨ NAME ✨

xdma_set_vector_reg — configure hardware IRQ registers 💖

like, it goes in and sets up the IRQ register situation on the hardware. that's the whole vibe. no cap.

---

🌸 SYNOPSIS 🌸

int xdma_set_vector_reg (struct xdma_device *xdev , u32 vec_tbl_start ,
u32 irq_start , u32 irq_num );

it returns an int, bestie. that's the tea. ☕

---

🎀 ARGUMENTS 🎀

• xdev — DMA device pointer. it's giving "which device are we even talking about" energy, and the answer is this one 🦋
• vec_tbl_start — start of IRQ registers. the beginning of the register table, periodt ✨
• irq_start — start of IRQ. where the IRQ situation begins 🔥
• irq_num — number of IRQ. how many of them we're dealing with, fr fr 💅

---

👑 SEE ALSO 👑

Kernel file ./drivers/dma/xilinx/xdma.c

and the whole friend group, honestly — go read these too, iykyk:

• struct xdma_desc_block(9)
• struct xdma_chan(9)
• struct xdma_desc(9)
• struct xdma_device(9)
• xdma_link_sg_desc_blocks(9)
• xdma_link_cyclic_desc_blocks(9)
• xdma_channel_init(9)
• xdma_free_desc(9)
• xdma_alloc_desc(9)
• xdma_xfer_start(9)
• xdma_xfer_stop(9)
• xdma_alloc_channels(9)
• xdma_issue_pending(9)
• xdma_terminate_all(9)
• xdma_synchronize(9)
• xdma_fill_descs(9)
• xdma_prep_device_sg(9)
• xdma_prep_dma_cyclic(9)
• xdma_prep_interleaved_dma(9)
• xdma_device_config(9)
• xdma_free_chan_resources(9)
• xdma_alloc_chan_resources(9)
• xdma_channel_isr(9)
• xdma_irq_fini(9)
• xdma_irq_init(9)
• xdma_disable_user_irq(9)
• xdma_enable_user_irq(9)
• xdma_get_user_irq(9)
• xdma_remove(9)
• xdma_probe(9)

---

🌈 okay that's the whole page, you ate that 💅 this lil slice of the Kernel API Manual lives in ./drivers/dma/xilinx, dated October 2026, and it's still xdma_set_vector_reg(9) at the end of the day 🎀 bye bestie, go configure some registers ✨