xdma_irq_init(9)

✨ xdma_irq_init(9) ✨

okay so bestie, welcome to the Kernel API Manual page for xdma_irq_init — yes the manual name is literally the function name, that's just how kernel docs roll, and honestly? iconic. this is a (9) page too, which is the kernel-API section, so you know it's the good stuff 🎀

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🌸 NAME 🌸

xdma_irq_init — initialize IRQs 💫

like, that's it, that's the whole name. short, sweet, and it does exactly what it says on the tin. no cap.

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🦋 SYNOPSIS 🦋

int xdma_irq_init (struct xdma_device *xdev );

so you're calling a function that hands back an int (return value teaaaa, but the page doesn't spill what it is, so we're not gonna invent one ngl 🫶), and it takes exactly one lil argument, which we're getting to. keep the signature exactly as-is, do not "clean up" the spacing, the spacing is part of the vibe now 💅

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💖 ARGUMENTS 💖

• xdev — DMA device pointer. that's your pointer to the DMA device, bestie ✨ it's a struct xdma_device *, so it's the whole device situation, not a channel, not a descriptor, the device. main character energy fr fr.

lowkey a one-argument page, so this section is short and that's totally fine, we love a minimal queen 👑

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🌈 SEE ALSO 🌈

hm okay, the original drops this as one big list plus a file path, so let's keep every single one of them because we do not skip entries in this house 🧚

the kernel file it all lives in: ./drivers/dma/xilinx/xdma.c

and the whole friend group of related functions and structs:

• 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_set_vector_reg(9)
• xdma_disable_user_irq(9)
• xdma_enable_user_irq(9)
• xdma_get_user_irq(9)
• xdma_remove(9)
• xdma_probe(9)

that's thirty entries, all accounted for, go read them if you're doing a deep dive, iykyk 💅

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okay bye bestie, go init those IRQs responsibly 💜

sign-off time 🎀 — this little page comes from ./drivers/dma/xilinx, dated October 2026, and the footer name is still xdma_irq_init(9) because we never change the icon's name. periodt. 🦋