ufs_qcom_init(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ufs_qcom_init(9)

okay so this is a page from the Kernel API Manual, and the function is literally called ufs_qcom_init — yes bestie, we're in the kernel, we're in the (9) section, this is driver-level stuff and it's iconic 🎀

✨ NAME ✨

ufs_qcom_init — bind phy with controller 🦋

like, that's the whole vibe. phy meets controller. they're bonded now. it's giving main character energy.

✨ SYNOPSIS ✨

int ufs_qcom_init (struct ufs_hba *hba );

✨ ARGUMENTS ✨

  • hba — the host controller instance 💜 that's your controller bestie, the one we're hooking the PHY up to.

✨ DESCRIPTION ✨

So the way that this works: ufs_qcom_init binds the PHY with the controller, and then it powers up that PHY — which is what enables the clocks and the regulators. 🌸

Like, the PHY doesn't just wake up for free. Nothing does. The binding has to happen first, and then the power-up brings the clocks and regulators online. One thing leads to the next, no cap. ⭐

✨ RETURN ✨

okay so the return values matter, pay attention bestie:

  • -EPROBE_DEFER — this is what you get if the binding fails. defer, defer, come back later 🙈
  • a negative error — this is what you get if the phy power up fails. lowkey a bad sign, highkey go check your PHY 💀
  • zero — success, slay, we ate, periodt 👑

🌈 SEE ALSO 🌈

the kernel file, fr fr:

  • Kernel file ./drivers/ufs/host/ufs-qcom.c

and the whole friend group of related functions — literally all of them, iykyk:

🫶 a lil heads-up from your girl: this page lives in ./drivers/ufs/host, and it's dated October 2026 — so yes, we're reading from the future, and yes, it's still about binding a phy to a controller. some things never change 💖

anyway, ily, go bind that phy 🧚💅

📦 where this page comes from