hpt37x_calibrate_dpll(9)

💅 hpt37x_calibrate_dpll(9) — like, the HPT37x DPLL calibration era ✨

okay so real talk, this is a page from the Kernel API Manual and it's about one tiny little function that does one tiny little job, and honestly? she serves. let's get into it 🎀

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✨ NAME ✨

hpt37x_calibrate_dpll — bestie, this calibrates the DPLL loop. that's it. that's the whole vibe. 🦋

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🌸 SYNOPSIS 🌸

int hpt37x_calibrate_dpll (struct pci_dev *dev );

like literally one argument, one int coming back, no drama 💅

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🫶 ARGUMENTS 🫶

• dev — the PCI device 💖 (yes, the actual struct pci_dev *, she's the main character here)

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🔥 DESCRIPTION 🔥

so what she does is perform a calibration cycle on the HPT37x DPLL ✨ like that's the whole assignment, no cap.

and then — this is the part you gotta remember for the quiz — she returns 1 if this succeeds. that's it. 1 means slay, calibration worked 🙌

ngl the manpage doesn't say what happens on failure, so don't come for me, i'm just telling you what's on the page 💀

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👑 SEE ALSO 👑

kernel file ./drivers/ata/pata_hpt37x.c — and her whole friend group, all of them, in order, no one gets left out:

• hpt37x_find_mode(9)
• hpt370_filter(9)
• hpt370a_filter(9)
• hpt372_filter(9)
• hpt37x_cable_detect(9)
• hpt374_fn1_cable_detect(9)
• hpt37x_pre_reset(9)
• hpt37x_set_piomode(9)
• hpt37x_set_dmamode(9)
• hpt370_bmdma_stop(9)
• hpt37x_bmdma_stop(9)
• hpt37x_clock_slot(9)
• hpt37x_init_one(9)

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and that's the whole page bestie, go calibrate something 💜

sign-off szn: this lil number lives over in ./drivers/ata, dated October 2026, and the header was hpt37x_calibrate_dpll(9) from the Kernel API Manual — mwah, bye 🎀✨🌈