xdma_disable_user_irq(9)

💅 xdma_disable_user_irq — it's in the Kernel API Manual, bestie

okay so you opened the manpage for xdma_disable_user_irq(9) and yes the manual name is literally Kernel API Manual — very official, very demure. this is the little function that turns a user interrupt OFF. that's it. that's the whole vibe. ✨

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🌸 NAME

xdma_disable_user_irq — disable user interrupt 💤

like… the interrupt? she's off duty now. periodt.

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🎀 SYNOPSIS

void xdma_disable_user_irq (struct platform_device *pdev , u32 irq_num
);

no return value, so you literally cannot get a status report back. she does her thing and dips. 💅

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🦋 ARGUMENTS

• pdev — pointer to the platform_device structure 👑 this is your device, your main character, the whole reason we're here.
• irq_num — the system IRQ number 🔥 that's the number the system uses for the interrupt, not some private lil nickname. use it right.

ngl there are exactly two things to pass and both of them have to be correct. no cap. 🙈

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🌈 SEE ALSO

the kernel file lives at ./drivers/dma/xilinx/xdma.c — that's home base 🏠 and here's the whole friend group, every single one of them, no one left out:

• 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_irq_init(9)
• xdma_enable_user_irq(9)
• xdma_get_user_irq(9)
• xdma_remove(9)
• xdma_probe(9)

and yeah — xdma_enable_user_irq(9) is right there in the list. she's the opposite twin. if this page is the "lights off" button, that one's "lights on". iykyk 💜

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🧚 friendly little heads-up: this page is from ./drivers/dma/xilinx, dated October 2026. so like, if you're reading this in 2025, bestie you are getting a sneak peek. 💀

and that's the page!! go forth and disable that user interrupt responsibly, ilysm 🫶🍓💖