ns87415_bmdma_setup(9)

✨ ns87415_bmdma_setup(9) ✨

okay so we're in the Kernel API Manual today bestie, and this one is a little deep-cut from the ATA trenches 💅

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🌸 NAME 🌸

ns87415_bmdma_setup — literally just Set up DMA. that's the whole vibe. ✨

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🎀 SYNOPSIS 🎀

void ns87415_bmdma_setup (struct ata_queued_cmd *qc );

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🦋 ARGUMENTS 🦋

• qc — the command block 👑 like, the whole little packet of "here's what we're doing" energy

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💖 DESCRIPTION 💖

okay so this function sets things up for bus mastering DMA. and here's the tea 🍵: we have to do it ourselves instead of just using the helper — because of a chip erratum 😭 the hardware said "no ❤️" so we hand-roll the setup. no cap, it's giving "i'll do it myself" main character energy.

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🌈 SEE ALSO 🌈

• the kernel file ./drivers/ata/pata_ns87415.c 🫶
• ns87415_set_mode(9)
• ns87415_set_piomode(9)
• ns87415_bmdma_start(9)
• ns87415_bmdma_stop(9)
• ns87415_irq_clear(9)
• ns87415_check_atapi_dma(9)
• ns87560_read_buggy(9)
• ns87560_check_status(9)
• ns87560_tf_read(9)
• ns87560_bmdma_status(9)
• ns87415_init_one(9)

like, the whole friend group fr fr 💜

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ngl ns87560_read_buggy(9) is out here with its whole government name and i respect it 🫡

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and that's the page!! mwah 💋 this little cutie comes to you from the source at ./drivers/ata ⭐ dated October 2026 🗓️ from your Kernel API Manual — slay, go set up that DMA bestie 💅🎀