hpt370_filter(9)

💅 hpt370_filter(9) — your girl's guide to the mode selection filter

okay so hi bestie 🫶 welcome to the Kernel API Manual, specifically the page for hpt370_filter(9). it's a tiny one, but it's important, i promise. like, small but mighty. main character energy in a four-line function, fr fr.

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✨ NAME ✨

hpt370_filter — the mode selection filter. that's it. that's the job. she filters. she selects modes. she slays 🎀

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🌸 SYNOPSIS 🌸

unsigned int hpt370_filter (struct ata_device *adev , unsigned int mask
);

yes the signature is literally formatted exactly like that in the original, and yes we are keeping it exactly like that, no cap. character for character, babe. 💖

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🦋 ARGUMENTS 🦋

• adev — an ATA device. that's the thing we're looking at 👀
• mask — the mode mask. the mask of modes. the mode-y mask. iconic.

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💀 DESCRIPTION 💀

okay so here's the whole vibe: this function blocks UDMA on devices that cause trouble with this controller. that's it. that's the entire plot.

like, some devices are messy with this controller — not their fault, we don't judge — and so this filter steps in and says "nope, no UDMA for you, sweetie" 💅 and that's genuinely the whole thing.

no extra lore, bestie. the manpage gives us one sentence and we are respecting it. don't @ me.

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🔥 SEE ALSO 🔥

go check out the kernel file ./drivers/ata/pata_hpt37x.c — that's where the magic lives ✨

and then the whole friend group:

• hpt37x_find_mode(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_calibrate_dpll(9)
• hpt37x_init_one(9)

like, the whole hpt37x extended universe, honestly. read them all. iykyk 🌈

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and that's the page!! 🫶 sourced from ./drivers/ata, dated October 2026, titled hpt370_filter(9), part of the Kernel API Manual — mwah, love that for us 💜✨ go forth and filter those modes, bestie 🧚‍♀️