optiplus_mode_setup(9)

💅 optiplus_mode_setup(9) — like, the Kernel API Manual bestie ✨

Okay so welcome to optiplus_mode_setup(9), a page straight out of the Kernel API Manual and honestly? It's giving niche-but-important 🎀

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🌸 NAME 🌸

optiplus_mode_setup — the DMA setup for Firestar Plus, periodt 💫

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✨ SYNOPSIS ✨

void optiplus_mode_setup (struct ata_port *ap , struct ata_device *adev
, u8 mode );

That's the whole signature, no cap — copy it exactly, she's load-bearing 🫶

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🦋 ARGUMENTS 🦋

• ap — the ATA port, aka where all the action is happening 💅
• adev — the device, the actual little guy we're setting up 🎀
• mode — the desired mode, i.e. the vibe we're asking for 🔥

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👑 DESCRIPTION 👑

Okay so listen 👂 — the Firestar plus has additional UDMA functionality for UDMA0-2 and that means we have to do some additional work, fr fr. Not optional, just how it is 😭

But here's the slay part: because the base work we must do is mostly shared, we wrap the Firestar setup functionality in this one 🌈 Iconic design choice, we love to see it 💜

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💀 SEE ALSO 💀

Kernel file ./drivers/ata/pata_optidma.c and its whole friend group:

• optidma_pre_reset(9)
• optidma_unlock(9)
• optidma_lock(9)
• optidma_mode_setup(9)
• optidma_set_pio_mode(9)
• optidma_set_dma_mode(9)
• optiplus_set_pio_mode(9)
• optiplus_set_dma_mode(9)
• optidma_make_bits43(9)
• optidma_set_mode(9)
• optiplus_with_udma(9)

Go read them, iykyk 📚✨

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🧚 Little sign-off moment: this page lives in ./drivers/ata, dated October 2026, and it's filed under optiplus_mode_setup(9) — remember those, bestie, they're on the test 💖

Stay hydrated, read your SEE ALSOs, and may your UDMA always be mode 0-2 🌸💅🦋