usb_ep_align_maybe(9)

📦 version 7.3.1, in nixpkgs unstable

💅 usb_ep_align_maybe(9)

okay so bestie, this is a page from the Kernel API Manual and honestly? it's a tiny little helper with main character energy 🎀 it does exactly one (1) thing and it does it slayfully. let's get into it ✨

🌸 NAME 🌸

usb_ep_align_maybe — returns len aligned to ep's maxpacketsize if the gadget requires quirk_ep_out_aligned_size, otherwise it just returns len as-is. no cap, that's the whole deal 💖

✨ SYNOPSIS ✨

size_t usb_ep_align_maybe (struct usb_gadget *g , struct usb_ep *ep ,
size_t len );

like, three args in, one size_t out. clean. iconic. we love a simple signature 🫶

🦋 ARGUMENTS 🦋

  • g — the controller we're checking for the quirk. yep, the gadget vibes get inspected here 🔍
  • ep — the endpoint whose maxpacketsize is used to align len. it's giving "the ruler" 📏
  • len — the buffer size's length that we want to align to ep's maxpacketsize 💫

🌈 DESCRIPTION 🌈

so the way this works: this helper exists for in case it's required, for any reason, to check and maybe align a buffer's size to an ep's maxpacketsize. that's it. that's the function. "maybe" is literally in the name because sometimes it aligns and sometimes it doesn't — it reads the room first 🙈💅

👑 SEE ALSO 👑

okay this is the part where the whole friend group shows up — the kernel file ./include/linux/usb/gadget.h and literally everyone in it:

go read all of them, they're all in ./include/linux/usb and they all ate 🔥

fr fr bestie, "maybe" is the whole personality here — don't assume it aligned anything, check the return value 😭💀

mwah, that's the page! 💜 this was filed under ./include/linux/usb and dated October 2026 — see you in the next one, iykyk 🌸⭐🧚

📦 where this page comes from