hpt3x2n_set_dmamode(9)

💅 hpt3x2n_set_dmamode(9) — the Kernel API Manual moment 🎀

okay so bestie, we're in the Kernel API Manual today and this one is a lil kernel function called hpt3x2n_set_dmamode. it's giving driver-internals realness, and honestly? iconic. let's get into it 💖

---

✨ NAME ✨

hpt3x2n_set_dmamode — DMA timing setup 🕒

like, literally the function that sets up your DMA timings. no cap.

---

🌸 SYNOPSIS 🌸

void hpt3x2n_set_dmamode (struct ata_port *ap , struct ata_device *adev
);

it returns void, so it gives you nothing back — and that's on purpose, main character energy, no notes. 🫶

---

🦋 ARGUMENTS 🦋

• ap — ATA interface 💻 (the whole port, the big picture, the vibe)
• adev — Device being configured 🎀 (the specific device getting its little glow-up)

---

👑 DESCRIPTION 👑

Set up the channel for MWDMA or UDMA modes. that's it, that's the whole thing, and she ate. 💅

so when somebody needs the channel prepped for MWDMA or UDMA, this is the function that does the timing setup. periodt. ⭐

---

🔥 SEE ALSO 🔥

Kernel file ./drivers/ata/pata_hpt3x2n.c — that's the home base, the source of truth, iykyk 💜

the whole friend group (aka the related functions) 🧚:

• hpt3x2n_find_mode(9)
• hpt372n_filter(9)
• hpt3x2n_cable_detect(9)
• hpt3x2n_pre_reset(9)
• hpt3x2n_set_piomode(9)
• hpt3x2n_bmdma_stop(9)
• hpt3x2n_set_clock(9)
• hpt3xn_calibrate_dpll(9)
• hpt3x2n_init_one(9)

---

ngl bestie, if you're poking at DMA modes you're already deep in the kernel lore — and yes, hpt3xn_calibrate_dpll(9) really is spelled with 3xn not 3x2n, don't come for me, copy it exactly, fr fr 🙈

---

🌈 and that's the tea! this lil page lives in ./drivers/ata and it's stamped October 2026 — so go forth, set those DMA timings, and slay 💖✨🎀