dpu_core_irq...ter_callback(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dpu_core_irq_register_callback(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes that's the manual name, we're in the kernel docs now, put your big-girl hat on 🎀 this page is literally all about one function that hooks your callback into an IRQ interrupt, and honestly? it's giving very demure, very mindful, very "register yourself before you wreck yourself" ✨

🦋 NAME 🦋

dpu_core_irq_register_callback — for registering a callback function on an IRQ interrupt 💖 like, that's its whole job, that's the vibe, no cap

🌸 SYNOPSIS 🌸

int dpu_core_irq_register_callback (struct dpu_kms *dpu_kms , unsigned int irq_idx , void (*irq_cb)(void *arg) , void *irq_arg );

look at her. four parameters. an int coming back at you. iconic 👑

🎀 ARGUMENTS 🎀

  • dpu_kms — the DPU handle 🫶 that's your main character, the one you're handing everything to
  • irq_idx — the irq index, like her little number tag so the kernel knows which interrupt we're talking about ✨
  • irq_cb — the IRQ callback function. this is the function pointer, the actual "hey call me when it happens" baddie 💅
  • irq_arg — the IRQ callback argument. the little gift you pass along to your callback so it has something to hold onto 🍓

⭐ RETURN ⭐

returns 0 for success registering callback, otherwise failure — so like, zero is the good one here, don't get it twisted 😭 if you see anything that isn't 0, something did NOT slay

🔥 DESCRIPTION 🔥

okay so this function supports registration of multiple callbacks for each interrupt 👑 and that's genuinely the whole personality trait here — not just one callback per interrupt, multiple, she's polyamorous with her callbacks and it's fine, it's supported, it's literally built in 💖

🌈 SEE ALSO 🌈

the whole friend group, fr fr, all referenced right here:

like, read those too bestie, they're all in the same lore universe 🧚

💀 real talk: register responsibly — dpu_core_irq_unregister_callback(9) exists for a reason and you will be needing her later, iykyk

and that's the page!! 🎀 brought to you live from ./drivers/gpu/drm/msm/disp/dpu1, dated October 2026 ⭐ so like, future-dated queen behavior honestly 🌸 mwah, go register that callback, periodt 💅🦋

📦 where this page comes from