dwc2_hcd_qh_unlink(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to the Kernel API Manual ✨ this one is short and sweet and honestly kind of a baddie — no cap.

🌸 NAME 🌸

dwc2_hcd_qh_unlink — Removes a QH from either the non-periodic or periodic schedule. Memory is not freed.

🫶 read that last sentence again. Memory is not freed. this function just unlinks, it does not clean up. do not come for me later saying I didn't warn you 😭

✨ SYNOPSIS ✨

void dwc2_hcd_qh_unlink (struct dwc2_hsotg *hsotg , struct dwc2_qh *qh
);

it's giving "small function, big responsibilities" honestly 👑

🎀 ARGUMENTS 🎀

  • hsotg — The HCD state structure 💖 this is the main-character struct, the whole vibe of the host controller lives in here.
  • qh — QH to remove from schedule ✂️ this is the queen being unlinked from the schedule. she's leaving, but her memory is staying (see above, fr fr).

🦋 SEE ALSO 🦋

the whole friend group, no one left out 🫶 the kernel file lives at ./drivers/usb/dwc2/hcd_queue.c:

like, the entire hcd_queue.c cast list 😭 they all ate, periodt. if you're going on a wiki-walk through the dwc2 queueing code, this is your map 🗺️✨

💀 friendly reminder one more time: this function Removes a QH from either the non-periodic or periodic schedule. Memory is not freed. go call something else for that, bestie.

and that's the whole page, you're done, slay 🎀💜 this lil gem came out of ./drivers/usb/dwc2 and was stamped October 2026 — see you in the next manpage, mwah 😘🌷

📦 where this page comes from