pxa_udc_phy_event(9)

📦 version 7.3.1, in nixpkgs unstable

💖 pxa_udc_phy_event(9) — like, the Kernel API Manual era 💖

okay so bestie, this is a page from the Kernel API Manual, and it's about one very specific little function: pxa_udc_phy_event. It's short, it's sweet, and it's literally the moment your USB cable gets a vibe check. Let's get into it 🫶

✨ NAME ✨

pxa_udc_phy_event — the function that gets called by the phy when a VBus event happens. Yes, that's the whole name. Not me being dramatic, that's just what it does 💅

🦋 SYNOPSIS 🦋

int pxa_udc_phy_event (struct notifier_block *nb , unsigned long action
, void *data );

Look at that signature. Three arguments, one int coming back at ya. Iconic. 🎀

🌸 ARGUMENTS 🌸

  • nb — the notifier block. That's your little "hey, tell me when stuff happens" hookup 🧚
  • action — the phy action, i.e. whether it's a vbus connect or a disconnect. Cable in, cable out, the whole storyline 😭
  • data — the usb_gadget structure that lives inside pxa_udc. That's the actual main character here 👑

⭐ DESCRIPTION ⭐

So here's the tea: this one gets called by the USB Phy the second it senses a cable connect or disconnect. That's it. That's the job. It's the doorbell of the USB world 🔔

And what does it return? 0. That's it. Zero. Slay, honestly — no cap, it just says "yeah I handled it" and moves on 💀

🔥 SEE ALSO 🔥

Okay this is the part where I need you to stay with me, because the list is long and I am obsessed with how long it is. All of these live in the Kernel file ./drivers/usb/gadget/udc/pxa27x_udc.c:

Like… the way that list just keeps going. 68 entries. She ate and left absolutely no crumbs 👑💜

honest note bestie: I'm not adding anything that isn't on the page. If you want the deep lore, that's what the SEE ALSO squad is for. Go read pxa27x_udc.c, iykyk 🙈

okay bye ily, this page came from <code>./drivers/usb/gadget/udc</code> and the October 2026 era, and yes it's still titled pxa_udc_phy_event(9) — mwah 💋✨

📦 where this page comes from