ata_dev_xfermask(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ata_dev_xfermask

okay so this is a page from the Kernel API Manual (the (9) girlies, you know the ones) and it's all about ata_dev_xfermask — yes that's the name, yes it's a mouthful, we deal 💖

✨ NAME ✨

ata_dev_xfermask — literally computes the supported xfermask of the given device, no cap 🫶

🌸 SYNOPSIS 🌸

void ata_dev_xfermask (struct ata_device *dev );

bestie it returns void, so don't go looking for a return value, okay? it's giving "I did the work, I don't need applause" 💅

🎀 ARGUMENTS 🎀

  • dev — the device we're computing the xfermask for. that's it. that's the whole argument. main character energy fr 💜

🦋 DESCRIPTION 🦋

so the whole vibe here: this function computes the supported xfermask of dev and stores it in dev->*_mask. writes it right back into the device struct, iconic ✨

and listen — this function is responsible for applying all known limits. all of them. host controller limits, device quirks, etc... like it's the friend who remembers everyone's allergies at the group dinner 😭 nothing gets skipped, that's the whole job.

LOCKING: None. that's right babe, no locking. the original said it plainly and so am I 💀

🌈 SEE ALSO 🌈

the kernel file, first of all:

  • ./drivers/ata/libata-core.c

and then the entire extended friend group — every single one of these, no skips, iykyk 🧚‍♀️:

okay that's the page!! 🍓 quick little sign-off so you know where this came from: it lives in ./drivers/ata, and the version/date stamp says October 2026. go forth and compute those masks, bestie 👑💖

📦 where this page comes from