sdca_irq_request(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdca_irq_request(9) — like, the kernel API manual bestie ✨

okay so first things first: this is a page from the Kernel API Manual (section 9, the function one, iykyk) and the star of the show is sdca_irq_request. yes it's a lot of letters. no we're not scared of it. 🎀

🌸 NAME 🌸

sdca_irq_request — request an individual SDCA interrupt 🦋

like, one (1) single interrupt. not the whole squad. very main character energy.

✨ SYNOPSIS ✨

int sdca_irq_request (struct device *dev , struct sdca_interrupt_info
*info , int sdca_irq , const char *name , irq_handler_t handler , void
*data );

six arguments, one int coming back at you. slay. 🔥

🫶 ARGUMENTS 🫶

  • dev — Pointer to the struct device against which things should be allocated. it's giving "whose tab is this going on" 💳
  • info — Pointer to the interrupt information structure. the lore container, basically. 📚
  • sdca_irq — SDCA interrupt position. literally just which one, bestie. 📍
  • name — Name to be given to the IRQ. gotta name it, it's basically a pet 🐣
  • handler — A callback thread function to be called for the IRQ. the "when this happens, do this" function 💫
  • data — Private data pointer that will be passed to the handler. lil bag of stuff that comes along for the ride 🎒

💜 DESCRIPTION 💜

sooo typically this whole thing is handled internally by sdca_irq_populate — like, it's got it, don't worry, it's fine, it's handled 🙈

however (and this is the part that matters 👑), if a device requires custom IRQ handling, you can call this manually before calling sdca_irq_populate. and then when sdca_irq_populate runs, it will skip that IRQ whilst processing. you already did it, so it's like... been there, done that, not touching it. periodt. 💅

⭐ RETURN ⭐

Zero on success 🎉 and a negative error code on failure 😭. that's it. that's the return value. classic kernel.

🌈 SEE ALSO 🌈

Kernel file ./sound/soc/sdca/sdca_interrupts.c, plus the whole friend group of related functions:

that's the whole page, bestie, no cap 💀

ngl this one's short and sweet — read it, use it, request exactly one (1) interrupt, go touch grass 🍓

kisses, this came out of ./sound/soc/sdca and the version stamp says October 2026 — so like, from the future?? we stan a timeless icon 🧚💖

📦 where this page comes from