pch_udc_pcd_get_frame(9)

📦 version 7.3.1, in nixpkgs unstable

💖 pch_udc_pcd_get_frame 💖

okay so first things first — welcome to the Kernel API Manual, bestie 🎀. This little page is all about pch_udc_pcd_get_frame, and honestly? It's short, it's sweet, it does exactly one thing. Let's get into it ✨

🌸 NAME 🌸

pch_udc_pcd_get_frame — this API is invoked to get the current frame number 🦋

✨ SYNOPSIS ✨

int pch_udc_pcd_get_frame (struct usb_gadget *gadget );

Like… that's it. One function, one argument. Lowkey elegant, ngl 💅

🎀 ARGUMENTS 🎀

  • gadget — a reference to the gadget driver 👑 that's the whole thing, that's the argument

💜 DESCRIPTION 💜

So you call this and it hands you the return codes, and here's the vibe check on those 🌈:

  • 0 — Success, we ate, no notes 💖
  • -EINVAL — this happens if the gadget passed is NULL 😭 like, you gave it nothing. an empty hand. a void. and it said, respectfully, no.
fr fr, if you're passing in a NULL gadget, that's the case you're gonna hit — the manpage is extremely clear on this and so am I 🫶

🦋 SEE ALSO 🦋

the whole extended friend group 🧚 — first up, the kernel file where all this lives: ./drivers/usb/gadget/udc/pch_udc.c ⭐

and then the structs, in order, no one left out 💀:

  • struct pch_udc_data_dma_desc(9)
  • struct pch_udc_stp_dma_desc(9)
  • struct pch_udc_cfg_data(9)
  • struct pch_udc_ep(9)
  • struct pch_vbus_gpio_data(9)
  • struct pch_udc_dev(9)
  • struct pch_udc_request(9)

and now the functions, and yes there are a LOT of them, drink some water first 🍓:

like I said. a whole friend group. iykyk 😭💅

and that's the whole page, bestie 🫶 this one came out of ./drivers/usb/gadget/udc, dated October 2026, and honestly it's giving "short king of the kernel API." go get that frame number ✨👑💖

📦 where this page comes from