acpi_dma_simple_xlate(9)

✨ acpi_dma_simple_xlate(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for acpi_dma_simple_xlate — the simple ACPI DMA engine translation helper. it's giving "small function, big job" energy and honestly? we're obsessed 🎀

🌸 NAME 🌸

acpi_dma_simple_xlate — the simple ACPI DMA engine translation helper. no cap, that's literally what it is 💅

🦋 SYNOPSIS 🦋

struct dma_chan * acpi_dma_simple_xlate (struct acpi_dma_spec *dma_spec
, struct acpi_dma *adma );

💖 ARGUMENTS 💖

• dma_spec — pointer to the ACPI DMA specifier. yeah, the spec. the whole vibe check of "which DMA thing are we even talking about" 🫶
• adma — pointer to the ACPI DMA controller data. this is the controller's little info stash ✨

🔥 DESCRIPTION 🔥

so this is a simple translation function for ACPI-based devices. what does it do? it passes the struct dma_spec over to the DMA controller driver's very own provided filter function. that's it. that's the whole main character moment 🌟

like, no drama, no extra steps — it just hands your spec off to the filter and lets the driver decide. iconic behavior, fr fr 🧚

⭐ RETURN ⭐

pointer to the channel if it's found, or NULL otherwise. found = slay 💅, not found = NULL and you move on 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/dma/acpi-dma.c
• acpi_dma_parse_resource_group(9)
• acpi_dma_parse_csrt(9)
• acpi_dma_controller_register(9)
• acpi_dma_controller_free(9)
• devm_acpi_dma_controller_register(9)
• acpi_dma_update_dma_spec(9)
• acpi_dma_parse_fixed_dma(9)
• acpi_dma_request_slave_chan_by_index(9)
• acpi_dma_request_slave_chan_by_name(9)

ngl bestie, if you're deep in the DMA docs, read the whole little friend group above — they all hang out in ./drivers/dma/acpi-dma.c together 💜

and that's the page!! courtesy of ./drivers/dma, dated October 2026, and yes the page is still called acpi_dma_simple_xlate(9) 🎀✨ mwah, go build something 👑