hw_ep_disable(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hw_ep_disable(9) — from the Kernel API Manual, bestie

Okay so listen ✨ this one is a little tiny page from the Kernel API Manual and honestly? It's giving "short but iconic." We're talking about hw_ep_disable, a function that does exactly one dramatic thing and then bounces. Let's get into it 🎀

✨ NAME ✨

hw_ep_disable — disables endpoint (execute without interruption) 🫶

Like, yes, that's the whole vibe. Disable the endpoint. And please note the parenthetical, bestie — execute without interruption. That's not a suggestion, that's the assignment 💅

🌸 SYNOPSIS 🌸

int hw_ep_disable (struct ci_hdrc *ci , int num , int dir );

That's it. Three args. In, out, done. The way this signature ate 😭

🦋 ARGUMENTS 🦋

  • ci — the controller. Your main character struct, the struct ci_hdrc * in question 👑
  • num — endpoint number. Which endpoint are we talking about, bestie? Number it.
  • dir — endpoint direction. Pick a lane (literally, direction matters) 🌈

💖 DESCRIPTION 💖

So here's the tea: this function returns an error code.

That's genuinely the entire description in the original and I refuse to invent lore that isn't there 🙈 So: it's a function, it returns an error code, and that's your vibe check. No cap. Go read the code if you want the fuller story, iykyk.

⭐ Reminder from the NAME section that we are NOT forgetting: disabling an endpoint here is meant to be executed without interruption. Keep that in your notes app, bestie.

🔥 SEE ALSO 🔥

The kernel file lives at ./drivers/usb/chipidea/udc.c — and here's the whole friend group, no one left out 💜

Thirty-three besties and every single one is invited to the group chat 🧚

Okay that's the whole page, mwah 💋 Signing off from ./drivers/usb/chipidea, dated October 2026 — Kernel API Manual, hw_ep_disable(9), slay ✨🦋💖

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