snd_devm_request_dma(9)

💅 snd_devm_request_dma ✨

okay bestie, this is the snd_devm_request_dma(9) manual page — the kernel API glow-up for request_dma() 🎀

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🌸 NAME 🌸

snd_devm_request_dma — the managed version of request_dma() 💖

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✨ SYNOPSIS ✨

int snd_devm_request_dma (struct device *dev , int dma , const char
       *name );

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🦋 ARGUMENTS 🦋

• dev — the device pointer, aka the device we're doing this for 🫶
• dma — the dma number, literally the DMA number 💫
• name — the name string of the requester, so everyone knows who asked 👑

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🔥 DESCRIPTION 🔥

okay so here's the tea: the requested DMA will be automatically released at unbinding via devres. that's the managed devres behavior — the unbinding step handles the release for you ✨

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💀 RETURN 💀

zero on success, or a negative error code. that's it, bestie 😭💖

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🌈 SEE ALSO 🌈

• Kernel file ./sound/core/isadma.c
• snd_dma_program(9)
• snd_dma_disable(9)
• snd_dma_pointer(9)

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xoxo, from ./sound/core 💖 — dated October 2026, manual snd_devm_request_dma(9) ✨ periodt.